id
int64
0
1,000k
quizzes
stringlengths
81
81
solutions
stringlengths
81
81
method
stringclasses
2 values
steps
sequencelengths
44
52
500
005700001000830790806040000409003160010000350000270004054000200290050038007906400
935762841142835796876149523429583167718694352563271984654318279291457638387926415
constraint_programming
[ "R7C6=6", "R8C4=2", "R0C5=2", "R0C0=9", "R7C3=4", "R6C8=9", "R8C0=3", "R5C1=6", "R3C4=8", "R4C8=2", "R1C8=6", "R4C5=4", "R7C5=7", "R6C7=7", "R3C1=2", "R6C3=3", "R0C4=6", "R2C1=7", "R6C0=6", "R8C7=1", "R5C2=3", "R4C3=6", "R5C7=8", "R3C3=5", "R4C2=8", "R8C8=5", "R5C5=1", "R2C3=1", "R0C1=3", "R4C4=9", "R4C0=7", "R1C2=2", "R2C8=3", "R0C6=8", "R2C6=5", "R8C1=8", "R1C0=1", "R1C5=5", "R6C5=8", "R5C0=5", "R2C5=9", "R0C7=4", "R3C8=7", "R1C1=4", "R5C6=9", "R7C2=1", "R2C7=2", "R6C4=1" ]
501
000009800014070009038260100100006205406300000590800340000021560607000002000095078
765139824214578639938264157173946285486352791592817346849721563657483912321695478
backtracking
[ "R5C8=6", "R1C6=6", "R6C2=9", "R3C3=9", "R2C8=7", "R3C7=8", "R4C4=5", "R1C3=5", "R4C6=7", "R3C4=4", "R7C7=1", "R7C1=5", "R6C1=4", "R2C7=5", "R7C4=8", "R0C2=5", "R0C3=1", "R6C8=3", "R3C1=7", "R0C4=3", "R8C0=3", "R4C7=9", "R1C5=8", "R4C8=1", "R5C4=1", "R6C0=8", "R7C6=9", "R2C0=9", "R0C1=6", "R8C2=1", "R6C3=7", "R7C5=3", "R5C2=2", "R0C7=2", "R2C5=4", "R8C1=2", "R0C8=4", "R3C2=3", "R8C3=6", "R7C3=4", "R5C5=7", "R4C5=2", "R1C0=2", "R4C1=8", "R0C0=7", "R1C7=3", "R8C6=4" ]
502
004002000900050070781304500005090100090600023340180609000000008276008010030009204
654972381923851476781364592865293147197645823342187659419526738276438915538719264
backtracking
[ "R4C2=7", "R1C8=6", "R1C2=3", "R7C3=4", "R6C2=9", "R3C5=3", "R8C7=6", "R1C5=1", "R7C8=5", "R1C6=4", "R5C2=2", "R8C2=8", "R4C4=4", "R6C4=2", "R8C0=5", "R5C5=7", "R6C0=4", "R7C4=3", "R4C5=5", "R6C3=5", "R0C0=6", "R2C8=2", "R4C0=1", "R3C8=7", "R0C4=7", "R6C6=7", "R5C7=5", "R2C7=9", "R6C5=6", "R0C7=8", "R1C1=2", "R0C8=1", "R1C3=8", "R0C6=3", "R6C7=3", "R3C7=4", "R4C6=8", "R8C4=1", "R8C3=7", "R3C3=2", "R7C6=9", "R0C3=9", "R3C1=6", "R0C1=5", "R6C1=1", "R3C0=8", "R2C4=6" ]
503
702800060600104000340065090000970016000058200000001804270306008090200500031049007
712893465659124783348765192584972316163458279927631854275316948496287531831549627
backtracking
[ "R6C7=4", "R0C8=5", "R6C6=9", "R3C1=8", "R4C0=1", "R8C6=6", "R3C0=5", "R1C6=7", "R5C3=6", "R2C6=1", "R2C2=8", "R1C7=8", "R4C8=9", "R0C5=3", "R5C7=5", "R1C2=9", "R0C1=1", "R1C4=2", "R4C3=4", "R7C8=1", "R5C0=9", "R5C1=2", "R5C2=7", "R0C6=4", "R7C4=8", "R1C8=3", "R4C2=3", "R8C0=8", "R7C5=7", "R2C3=7", "R2C8=2", "R4C7=7", "R8C7=2", "R3C5=2", "R0C4=9", "R3C6=3", "R6C4=1", "R3C2=4", "R8C3=5", "R6C2=5", "R4C1=6", "R5C4=3", "R7C0=4", "R7C7=3", "R7C2=6", "R1C1=5" ]
504
000540310907010000000000068290800650571206080084000000402130009350007024000080030
826549317937618245145723968293874651571296483684351792462135879358967124719482536
backtracking
[ "R4C4=9", "R0C8=7", "R2C2=5", "R2C0=1", "R2C4=2", "R1C5=8", "R5C3=3", "R8C3=4", "R0C5=9", "R5C8=2", "R6C1=6", "R8C5=2", "R4C8=3", "R2C6=9", "R5C0=6", "R7C4=6", "R1C7=4", "R6C7=7", "R3C2=3", "R8C2=9", "R2C5=3", "R3C4=7", "R5C5=1", "R8C8=6", "R0C2=6", "R7C2=8", "R2C1=4", "R2C3=7", "R0C1=2", "R1C3=6", "R7C6=1", "R6C6=8", "R5C6=7", "R1C6=2", "R6C5=5", "R5C4=5", "R8C6=5", "R8C1=1", "R7C3=9", "R4C6=4", "R0C0=8", "R3C5=4", "R1C1=3", "R3C8=1", "R1C8=5", "R8C0=7", "R5C7=9" ]
505
600850019701903000000410003048000061500100472200009500059086000402000305870020000
634852719721963854985417623348275961596138472217649538159386247462791385873524196
backtracking
[ "R8C3=5", "R4C1=9", "R7C4=9", "R5C3=6", "R5C2=7", "R5C8=8", "R7C5=1", "R2C5=7", "R6C3=3", "R5C1=1", "R1C8=4", "R8C5=4", "R1C6=8", "R8C6=1", "R0C5=2", "R0C6=7", "R3C3=2", "R5C4=4", "R3C6=9", "R3C0=3", "R5C7=3", "R6C0=1", "R3C5=5", "R2C0=9", "R1C4=6", "R8C8=6", "R4C5=8", "R7C1=6", "R2C6=6", "R6C6=2", "R4C4=3", "R0C2=4", "R2C1=8", "R1C1=2", "R7C7=8", "R0C1=3", "R8C7=9", "R4C2=6", "R1C7=5", "R7C3=7", "R3C4=7", "R6C7=4", "R2C2=5", "R6C8=7", "R8C2=3", "R2C7=2" ]
506
000030670900102005047860002070508304005093006810000000096000040000001203501004980
152439678968172435347865192679518324425793816813246759296387541784951263531624987
constraint_programming
[ "R3C2=9", "R7C4=5", "R6C3=3", "R7C0=7", "R7C1=8", "R3C0=6", "R5C7=5", "R3C4=1", "R7C2=4", "R1C2=8", "R1C4=7", "R3C7=2", "R0C8=8", "R0C1=5", "R7C3=9", "R6C5=7", "R4C3=7", "R4C1=2", "R8C8=7", "R8C1=3", "R2C7=9", "R2C0=3", "R6C6=5", "R0C0=1", "R2C5=5", "R4C6=8", "R8C3=6", "R5C8=9", "R0C3=4", "R5C5=6", "R5C6=7", "R5C2=3", "R6C4=8", "R7C7=6", "R1C1=6", "R1C6=4", "R6C0=2", "R0C5=9", "R1C7=3", "R6C8=1", "R5C4=4", "R4C7=1", "R2C6=1", "R5C3=2", "R4C0=4", "R0C2=2", "R8C4=2" ]
507
030870009000100604045003080018090200000030157000050068059002471300006000781040000
236874519897125634145963782518697243962438157473251968659382471324716895781549326
backtracking
[ "R5C0=4", "R4C1=6", "R4C2=2", "R1C1=9", "R6C4=8", "R0C7=1", "R5C1=7", "R1C2=7", "R3C8=3", "R0C5=4", "R7C4=1", "R3C3=6", "R2C4=6", "R0C6=5", "R5C3=2", "R7C2=4", "R3C5=7", "R2C8=2", "R1C0=8", "R7C1=2", "R3C7=4", "R8C5=9", "R3C0=5", "R6C0=6", "R7C8=5", "R8C8=6", "R1C5=5", "R5C2=3", "R7C6=8", "R4C5=8", "R2C6=7", "R8C3=5", "R0C2=6", "R7C7=9", "R6C3=3", "R0C0=2", "R1C4=2", "R1C7=3", "R2C0=1", "R5C5=1", "R2C3=9", "R7C3=7", "R8C7=2", "R8C6=3", "R5C6=9", "R4C3=4", "R4C0=9" ]
508
820003000300006451000970800480790600013500009070604002040000000900012360706850010
825143976397286451164975823482791635613528749579634182241367598958412367736859214
backtracking
[ "R5C2=9", "R4C6=7", "R6C6=5", "R8C5=9", "R6C8=8", "R4C4=2", "R4C7=4", "R6C0=2", "R0C7=7", "R7C3=4", "R6C5=7", "R0C8=6", "R3C5=1", "R4C0=6", "R3C2=2", "R8C8=4", "R0C3=1", "R7C2=8", "R2C0=1", "R0C4=4", "R7C1=5", "R2C7=2", "R1C1=9", "R4C5=8", "R1C4=8", "R3C7=3", "R1C3=2", "R1C2=7", "R7C8=7", "R5C7=8", "R5C0=5", "R3C8=5", "R2C2=4", "R2C1=6", "R6C2=1", "R0C2=5", "R8C1=3", "R6C4=6", "R0C6=9", "R2C8=3", "R6C3=3", "R2C5=5", "R6C7=9", "R8C6=2", "R5C4=3", "R5C6=1" ]
509
000000090642090001790236080030769000120804300006000500085002160900040007007300004
358417692642598731791236485534769218129854376876123549485972163913645827267381954
backtracking
[ "R7C2=3", "R8C5=1", "R0C3=4", "R3C0=5", "R0C8=2", "R3C7=1", "R7C1=1", "R0C1=5", "R6C8=3", "R5C1=7", "R7C6=8", "R8C7=5", "R4C8=6", "R7C7=2", "R3C8=8", "R8C1=6", "R7C5=5", "R8C4=8", "R0C4=1", "R2C6=4", "R8C6=9", "R6C0=4", "R5C4=2", "R0C2=8", "R6C4=7", "R4C7=7", "R5C7=4", "R2C2=1", "R1C5=8", "R5C8=9", "R0C5=7", "R3C2=4", "R2C8=5", "R0C6=6", "R4C2=9", "R4C4=5", "R6C3=9", "R1C3=5", "R5C3=1", "R5C0=8", "R0C0=3", "R8C0=2", "R1C7=3", "R1C6=7", "R5C5=3", "R3C6=2", "R7C3=6" ]
510
400801006000906073008200500000000105859000020710030460604000000003025748070009031
437851296521946873968273514346792185859164327712538469684317952193625748275489631
backtracking
[ "R6C7=5", "R2C1=6", "R1C2=1", "R2C7=1", "R1C4=4", "R5C3=5", "R1C6=8", "R5C8=9", "R3C5=2", "R7C0=1", "R3C7=8", "R4C6=3", "R3C0=3", "R5C5=8", "R8C0=2", "R8C6=6", "R3C1=4", "R8C4=8", "R0C4=5", "R4C5=4", "R0C7=9", "R0C1=3", "R4C8=7", "R4C4=6", "R2C8=4", "R6C6=9", "R1C1=2", "R6C4=1", "R3C2=6", "R0C2=7", "R2C4=7", "R5C2=2", "R8C2=5", "R7C3=6", "R6C8=2", "R6C1=8", "R6C3=3", "R7C1=9", "R1C0=5", "R8C3=4", "R3C3=7", "R0C6=2", "R4C3=1", "R3C4=9", "R2C0=9", "R6C5=7", "R2C5=3" ]
511
480002900056008000902700804200981640000073002510200000060010000301005709840000530
487132956156498273932756814273981645694573182518264397765319428321845769849627531
backtracking
[ "R5C2=8", "R7C7=6", "R7C4=4", "R4C1=9", "R6C3=3", "R6C0=7", "R2C4=5", "R7C1=2", "R8C4=2", "R3C1=7", "R6C5=9", "R6C7=2", "R0C8=6", "R5C6=3", "R0C2=7", "R8C8=1", "R3C8=5", "R2C5=6", "R6C8=8", "R8C3=6", "R1C6=2", "R1C7=7", "R4C7=8", "R5C5=4", "R1C3=4", "R0C7=5", "R5C8=7", "R2C7=1", "R1C0=1", "R4C6=1", "R1C4=9", "R2C1=3", "R4C3=5", "R4C0=6", "R6C6=4", "R6C2=5", "R5C7=9", "R8C5=7", "R1C8=3", "R3C2=3", "R5C4=6", "R8C2=9", "R7C3=8", "R0C4=3", "R4C2=4", "R0C3=1" ]
512
380067500206480000400209000810392007630000002090040051007600090000001703500000608
389167524256483179471259836815392467634715982792846351147638295968521743523974618
backtracking
[ "R3C2=5", "R7C7=4", "R6C6=2", "R4C4=1", "R1C5=3", "R0C3=1", "R5C6=3", "R0C8=4", "R6C5=8", "R6C1=4", "R5C3=8", "R7C3=5", "R3C7=6", "R6C8=5", "R4C3=7", "R1C1=5", "R2C8=6", "R2C4=5", "R8C4=7", "R8C2=3", "R2C6=8", "R8C3=9", "R5C0=7", "R2C2=1", "R1C7=7", "R0C7=2", "R7C2=8", "R0C2=9", "R2C7=3", "R8C7=1", "R6C0=1", "R8C1=2", "R7C1=6", "R5C2=2", "R4C7=8", "R2C1=7", "R8C5=4", "R4C5=5", "R5C5=6", "R7C4=2", "R3C6=4", "R7C0=9", "R1C6=1", "R1C8=9", "R6C4=3", "R4C2=4", "R4C6=9" ]
513
027000030000450020306000194500294061930806000000500008010308040004027000290000700
427619835189453627356782194578294361931876452642531978715368249864927513293145786
constraint_programming
[ "R2C1=5", "R7C6=5", "R3C6=3", "R4C2=1", "R4C7=5", "R1C8=7", "R6C0=7", "R6C8=9", "R5C0=6", "R5C1=4", "R8C5=5", "R1C2=9", "R1C0=1", "R6C4=6", "R8C3=1", "R0C3=6", "R1C6=6", "R0C5=9", "R4C8=2", "R3C2=8", "R3C1=7", "R5C7=7", "R0C4=1", "R1C5=3", "R7C0=8", "R7C8=3", "R5C2=2", "R7C1=6", "R8C7=8", "R5C4=3", "R7C7=1", "R4C6=4", "R2C4=8", "R5C6=9", "R0C8=5", "R1C1=8", "R6C6=2", "R8C2=3", "R2C5=2", "R4C4=7", "R0C6=8", "R2C3=7", "R6C2=5", "R7C3=9", "R5C5=1", "R8C8=6", "R0C0=4", "R8C4=4" ]
514
009024000057001090320507000000030041504009807800000060700906053003080002010000406
169824735457361298328597614296738541534619827871452369782946153643185972915273486
backtracking
[ "R2C8=4", "R4C1=3", "R5C5=2", "R7C7=7", "R8C0=9", "R4C4=1", "R5C6=3", "R7C1=4", "R8C7=8", "R0C3=8", "R4C7=2", "R1C3=3", "R5C2=1", "R1C8=8", "R8C5=3", "R3C5=8", "R5C8=9", "R3C0=2", "R1C0=4", "R5C4=5", "R6C1=8", "R2C2=8", "R1C6=2", "R5C3=4", "R3C6=5", "R0C7=3", "R3C1=9", "R6C2=2", "R3C2=6", "R3C3=7", "R7C6=9", "R8C2=5", "R7C3=1", "R1C4=6", "R4C3=6", "R2C4=9", "R6C4=4", "R0C8=5", "R5C1=7", "R7C0=6", "R0C6=7", "R7C5=5", "R0C0=1", "R2C6=6", "R8C3=2", "R2C7=1", "R0C1=6", "R8C4=7", "R6C6=1" ]
515
309071005100030064058900000007094810000806300060020000230709040004005603706010002
349671285172538964658942731527394816491856327863127459235769148914285673786413592
constraint_programming
[ "R2C5=2", "R7C7=7", "R7C3=2", "R5C7=5", "R5C6=4", "R1C6=9", "R5C2=3", "R2C8=1", "R6C2=5", "R6C8=8", "R8C6=5", "R1C1=7", "R1C5=8", "R7C0=9", "R1C3=5", "R7C1=1", "R3C8=6", "R5C0=8", "R5C5=7", "R4C8=7", "R3C1=2", "R2C4=4", "R8C3=4", "R8C1=8", "R2C6=7", "R0C6=2", "R4C2=1", "R5C8=9", "R3C3=3", "R7C4=8", "R8C5=3", "R0C7=8", "R4C1=9", "R2C0=6", "R6C4=6", "R4C0=4", "R6C6=1", "R4C4=5", "R8C7=9", "R3C0=5", "R0C1=4", "R0C3=6", "R4C7=2", "R2C7=3", "R5C3=1", "R1C2=2" ]
516
050006001002705000004030800800000200206480030900601470000900300478010062603000054
359846721182795643764132895847359216216487539935621478521964387478513962693278154
backtracking
[ "R6C4=6", "R2C8=5", "R0C4=4", "R4C8=9", "R1C8=3", "R6C8=7", "R8C3=2", "R7C5=3", "R6C1=2", "R8C6=1", "R5C2=5", "R6C7=8", "R1C1=8", "R4C5=7", "R5C8=8", "R3C1=4", "R0C2=9", "R7C6=9", "R7C3=5", "R3C2=7", "R1C0=1", "R4C1=1", "R5C4=2", "R1C7=4", "R6C2=1", "R3C7=1", "R1C6=6", "R6C0=5", "R2C5=2", "R0C6=7", "R1C4=9", "R5C1=3", "R3C8=6", "R2C7=9", "R2C3=1", "R8C5=8", "R8C4=7", "R6C5=4", "R2C1=6", "R2C0=7", "R8C1=9", "R3C3=3", "R3C4=5", "R0C7=2", "R3C5=9", "R0C3=8", "R0C0=3", "R4C6=5" ]
517
600203479000106802030090005374602000050800706800000100002700000091040200060501084
615283479947156832238497615374612598159834726826975143482769351591348267763521984
backtracking
[ "R8C0=7", "R6C0=4", "R1C1=4", "R4C4=3", "R1C4=5", "R0C2=5", "R3C8=8", "R8C2=3", "R0C1=1", "R0C4=8", "R3C7=9", "R2C7=1", "R5C2=6", "R2C3=4", "R1C7=3", "R1C0=9", "R2C0=2", "R7C7=6", "R4C2=9", "R6C7=5", "R3C4=1", "R7C8=7", "R6C5=9", "R8C6=9", "R2C6=6", "R2C2=8", "R5C8=3", "R6C1=8", "R7C5=8", "R5C3=9", "R6C6=3", "R3C6=5", "R2C5=7", "R5C4=7", "R8C4=2", "R7C3=3", "R4C5=4", "R6C8=1", "R4C7=2", "R7C0=5", "R4C0=1", "R5C1=2", "R5C7=4", "R1C2=7", "R5C5=5", "R6C4=6" ]
518
054010308280000010000203070000000500009304067000090080060008740370046001508001092
754619328283475916196283475417862539829354167635197284961528743372946851548731692
constraint_programming
[ "R7C6=8", "R8C6=6", "R5C1=3", "R2C2=6", "R1C4=7", "R5C3=1", "R6C2=1", "R6C8=3", "R0C7=2", "R6C4=2", "R5C2=5", "R6C0=9", "R1C2=3", "R0C3=6", "R3C7=3", "R3C4=6", "R2C8=5", "R2C0=1", "R4C0=8", "R3C5=2", "R5C8=4", "R3C8=9", "R1C3=4", "R0C5=9", "R2C6=4", "R8C4=3", "R1C8=6", "R8C1=4", "R1C5=5", "R4C6=1", "R3C3=8", "R2C4=8", "R5C5=7", "R3C2=7", "R2C1=9", "R3C0=4", "R7C3=9", "R4C4=5", "R5C0=6", "R5C6=2", "R6C3=5", "R1C6=9", "R7C2=2", "R8C3=7", "R0C0=7", "R4C1=2", "R3C1=1", "R7C7=5" ]
519
260039070790040100050680000000000087029000001307560400600002030400700928080453000
264139875798245163153687249546921387829374651317568492671892534435716928982453716
backtracking
[ "R3C6=3", "R8C8=6", "R7C4=1", "R4C4=7", "R2C5=7", "R3C5=1", "R0C8=5", "R6C4=9", "R7C5=6", "R0C3=1", "R5C5=8", "R8C6=7", "R1C3=2", "R5C1=1", "R3C2=6", "R4C6=6", "R1C5=5", "R6C3=8", "R6C8=4", "R4C3=3", "R3C3=9", "R2C0=1", "R1C2=8", "R6C2=1", "R3C4=2", "R7C1=3", "R6C6=5", "R1C8=3", "R8C0=9", "R4C7=5", "R5C7=9", "R2C7=4", "R4C0=8", "R3C0=5", "R6C1=7", "R8C7=1", "R4C5=4", "R7C2=5", "R2C8=9", "R1C7=6", "R5C8=2", "R0C2=4", "R8C2=2", "R3C1=4", "R2C2=3", "R0C6=8", "R2C6=2" ]
520
000306000501070009023400870000082100002700003079005460087001300030800205010690040
798316524541278639623459871364982157152764983879135462487521396936847215215693748
backtracking
[ "R7C5=7", "R0C8=4", "R5C0=8", "R0C2=8", "R1C6=6", "R2C0=6", "R0C6=5", "R4C4=6", "R5C3=1", "R3C7=5", "R5C4=3", "R0C7=2", "R5C8=2", "R3C3=9", "R1C3=2", "R0C1=9", "R3C0=3", "R2C8=1", "R6C7=9", "R8C5=3", "R7C0=9", "R4C1=5", "R4C6=9", "R7C4=4", "R6C4=2", "R6C0=4", "R3C1=6", "R6C3=5", "R1C7=3", "R4C0=1", "R6C8=6", "R7C7=1", "R0C4=1", "R4C7=8", "R3C8=7", "R8C8=8", "R8C6=7", "R2C5=9", "R2C4=5", "R8C2=5", "R3C2=4", "R1C5=8", "R1C1=4", "R7C2=6", "R0C0=7", "R4C5=4", "R8C0=2" ]
521
020900000004006000860037205036050400000000093507100000041260380700004609000708102
325981764174526938869437215236859471418672593597143826941265387782314659653798142
backtracking
[ "R4C3=6", "R0C6=7", "R4C2=8", "R6C0=9", "R7C7=5", "R4C4=7", "R1C1=7", "R8C7=4", "R4C0=4", "R5C6=8", "R7C3=3", "R2C3=4", "R0C8=4", "R3C5=9", "R8C0=6", "R0C7=6", "R8C1=5", "R4C5=2", "R6C5=5", "R5C7=2", "R7C2=2", "R3C8=1", "R5C1=9", "R3C0=2", "R0C4=8", "R8C4=9", "R5C8=6", "R1C6=9", "R5C5=3", "R7C1=8", "R1C7=3", "R3C3=8", "R0C2=5", "R3C7=7", "R1C8=8", "R6C8=7", "R4C6=5", "R7C4=1", "R2C2=9", "R5C4=4", "R1C4=2", "R1C3=5", "R4C1=1", "R0C5=1", "R8C2=3", "R0C0=3", "R1C0=1", "R2C7=1" ]
522
008005240015604030079300008690402700003009005020000100040010002000200396800076510
368795241215684937479321658691452783783169425524837169946513872157248396832976514
backtracking
[ "R7C4=4", "R2C6=6", "R5C3=8", "R1C0=2", "R8C1=3", "R3C2=1", "R8C3=9", "R0C1=6", "R2C0=4", "R7C5=8", "R2C5=1", "R1C8=7", "R6C0=9", "R0C4=9", "R5C2=4", "R0C8=1", "R8C8=4", "R5C7=6", "R6C2=6", "R4C6=4", "R6C5=3", "R4C0=7", "R5C8=9", "R3C8=3", "R5C0=5", "R7C0=1", "R6C7=7", "R4C4=6", "R6C6=8", "R1C6=9", "R5C5=7", "R1C4=8", "R2C4=2", "R3C7=8", "R0C0=3", "R4C7=2", "R2C7=5", "R0C3=7", "R8C2=2", "R5C4=3", "R4C1=8", "R7C1=5", "R6C3=5", "R3C4=5", "R7C2=7", "R4C3=1" ]
523
080052100900036002070040638400083000006100083000079415504000000102000076800005009
683752194941836752275941638419583267756124983328679415594367821132498576867215349
backtracking
[ "R8C7=4", "R6C5=7", "R8C6=3", "R1C3=8", "R4C6=9", "R3C2=9", "R6C8=1", "R0C7=9", "R4C1=5", "R1C2=1", "R5C1=2", "R5C3=6", "R3C6=2", "R2C2=5", "R8C3=2", "R6C6=8", "R0C8=4", "R6C4=6", "R7C3=4", "R1C6=7", "R8C1=6", "R4C0=7", "R2C0=2", "R3C7=6", "R6C1=9", "R2C3=9", "R1C7=5", "R5C2=8", "R1C1=4", "R0C0=6", "R4C4=2", "R8C2=7", "R6C7=2", "R0C3=7", "R3C8=7", "R6C3=3", "R3C1=1", "R7C5=8", "R8C4=1", "R0C2=3", "R7C4=9", "R7C6=5", "R3C3=5", "R5C0=3", "R2C5=1", "R4C5=4", "R7C1=3" ]
524
100040500030068700008902000000200010083000026002034807560700008070015063000090400
196347582235168749748952631657289314483571926912634857564723198879415263321896475
backtracking
[ "R8C0=3", "R2C7=3", "R4C5=1", "R7C3=4", "R5C0=9", "R2C8=1", "R6C4=2", "R1C2=5", "R3C6=3", "R7C0=8", "R3C0=6", "R7C2=9", "R0C1=9", "R8C7=7", "R8C5=6", "R5C3=6", "R1C0=2", "R3C4=8", "R8C2=1", "R1C7=4", "R7C6=2", "R6C2=4", "R2C0=7", "R3C1=5", "R0C2=6", "R2C4=5", "R3C5=9", "R1C8=9", "R0C7=8", "R4C3=5", "R8C1=2", "R6C5=3", "R1C3=1", "R8C8=5", "R3C2=7", "R4C4=7", "R5C7=5", "R5C1=1", "R0C8=2", "R6C6=1", "R0C5=7", "R8C3=8", "R6C7=9", "R2C1=4", "R0C3=3", "R4C6=9", "R2C6=6", "R4C0=4", "R3C8=4" ]
525
730500010019800000200004007050027904908000600060030001020046008001005070046010023
734562819619873245285194367153627984978451632462938751527346198391285476846719523
backtracking
[ "R8C3=7", "R5C6=7", "R4C3=4", "R7C6=4", "R1C5=3", "R5C5=8", "R3C0=1", "R5C0=4", "R4C8=2", "R2C4=9", "R6C6=1", "R2C3=1", "R6C0=5", "R0C6=8", "R0C2=4", "R0C8=9", "R6C7=9", "R2C7=6", "R7C0=3", "R8C0=8", "R1C7=4", "R7C8=6", "R8C6=5", "R1C0=6", "R7C1=9", "R3C7=8", "R1C6=2", "R4C7=3", "R8C5=9", "R6C3=3", "R7C4=8", "R2C1=8", "R4C4=5", "R6C2=7", "R1C4=7", "R0C4=6", "R3C2=3", "R1C8=5", "R4C5=1", "R3C3=6", "R5C2=2", "R7C3=2", "R2C6=3", "R5C3=9", "R2C2=5", "R4C1=7", "R5C7=5", "R0C5=2" ]
526
078004100000080094050060073100040200097035600046009080760500030030020000800006915
378954126612783594459162873183647259297835641546219387761598432935421768824376915
backtracking
[ "R5C0=5", "R0C0=3", "R7C2=5", "R7C3=4", "R8C3=3", "R1C5=3", "R6C5=8", "R6C8=2", "R4C3=8", "R5C8=7", "R2C3=1", "R4C8=1", "R3C3=6", "R4C0=2", "R3C8=9", "R2C6=8", "R7C5=1", "R1C2=2", "R0C8=6", "R0C7=2", "R5C4=1", "R2C2=9", "R5C3=2", "R7C0=9", "R6C6=4", "R1C6=5", "R5C6=3", "R7C6=7", "R1C3=7", "R0C3=9", "R3C2=3", "R2C5=2", "R2C0=4", "R3C5=7", "R8C4=7", "R6C2=1", "R1C0=6", "R7C7=6", "R7C8=8", "R6C4=9", "R3C7=5", "R3C1=8", "R0C4=5", "R4C7=4", "R8C1=2", "R1C1=1", "R8C2=4" ]
527
009540080020600013700182000015000300300009406840020070000050600080006297094070030
169543782428697513753182964915764328372819456846325179237958641581436297694271835
backtracking
[ "R6C5=8", "R3C0=9", "R8C8=5", "R2C2=3", "R3C4=6", "R5C2=6", "R2C8=4", "R8C3=2", "R0C5=3", "R6C8=1", "R3C8=8", "R3C7=2", "R7C2=1", "R5C3=3", "R1C2=8", "R5C6=1", "R4C3=8", "R6C0=2", "R0C8=2", "R6C2=7", "R6C1=3", "R0C6=7", "R1C4=9", "R5C5=5", "R8C5=1", "R7C3=4", "R4C7=5", "R4C1=7", "R4C4=1", "R6C7=4", "R8C6=8", "R1C0=4", "R7C0=5", "R2C7=6", "R2C6=9", "R8C0=6", "R6C3=9", "R0C1=6", "R5C8=9", "R0C0=1", "R2C1=5", "R3C3=7", "R1C5=7", "R1C6=5", "R4C2=2", "R3C5=4", "R7C4=3" ]
528
010605030340100002067209008600702090080000540905008203003001084000000000400970106
812645739349187652567239418634752891281396547975418263723561984196824375458973126
constraint_programming
[ "R0C2=2", "R6C6=9", "R5C1=7", "R2C6=4", "R7C7=7", "R2C7=1", "R2C0=5", "R7C2=6", "R4C8=7", "R4C3=3", "R6C0=7", "R0C4=4", "R2C4=3", "R7C1=9", "R3C2=4", "R5C7=6", "R4C5=6", "R1C6=6", "R7C0=1", "R7C3=8", "R8C5=3", "R6C4=6", "R1C5=7", "R4C0=2", "R0C8=9", "R8C1=5", "R7C6=3", "R5C3=4", "R0C6=7", "R7C4=2", "R5C4=1", "R3C4=5", "R1C7=5", "R3C6=8", "R7C5=4", "R8C7=2", "R3C1=3", "R1C4=8", "R3C8=1", "R6C3=5", "R7C8=5", "R4C2=1", "R4C4=9", "R0C0=8", "R8C2=8", "R6C1=2", "R1C2=9" ]
529
740001000902000803000005604807090400310400069000060705408600520071080090600307000
746831952952746813183925674867592431315478269294163785438619527571284396629357148
constraint_programming
[ "R2C4=2", "R6C1=3", "R5C2=4", "R7C0=5", "R1C5=6", "R7C6=3", "R1C4=4", "R3C5=2", "R7C8=6", "R8C6=1", "R3C3=5", "R2C0=1", "R1C7=1", "R8C2=9", "R4C4=7", "R5C3=1", "R0C3=8", "R6C8=7", "R2C2=3", "R6C5=9", "R3C7=3", "R0C2=6", "R3C1=6", "R1C1=5", "R0C4=3", "R4C5=8", "R0C7=5", "R5C1=9", "R2C1=8", "R6C4=1", "R0C6=9", "R7C3=2", "R0C8=2", "R2C7=7", "R8C7=4", "R4C2=5", "R8C4=5", "R4C6=2", "R8C1=2", "R5C7=8", "R5C0=2", "R5C5=3", "R3C8=1", "R8C8=8", "R7C5=4", "R2C3=9", "R1C3=7" ]
530
010790300075106089802000160000004008001200605609050720060003204030480090000507000
416798352375126489892345167253674918781239645649851723568913274137482596924567831
backtracking
[ "R7C6=5", "R5C8=3", "R0C2=6", "R8C1=2", "R3C0=2", "R8C0=9", "R3C6=9", "R1C0=3", "R0C7=5", "R8C7=3", "R8C6=8", "R6C2=8", "R3C3=6", "R2C5=5", "R6C4=1", "R3C7=1", "R4C1=8", "R6C3=9", "R4C5=9", "R7C5=2", "R4C7=4", "R5C3=8", "R5C1=4", "R2C3=3", "R8C2=4", "R8C4=6", "R6C0=5", "R2C4=4", "R0C0=4", "R6C7=7", "R4C0=7", "R0C8=2", "R3C1=5", "R0C5=8", "R2C1=9", "R7C8=6", "R7C2=7", "R1C4=2", "R1C6=4", "R8C8=1", "R7C0=1", "R4C4=3", "R3C4=7", "R2C8=7", "R5C5=1", "R3C2=3" ]
531
006410208090050000070928030001000000800032000640005801300609080400000573702040100
536417298298356714174928635921864357857132946643795821315679482469281573782543169
backtracking
[ "R3C7=5", "R4C7=4", "R8C5=3", "R7C1=6", "R1C7=1", "R3C0=9", "R5C4=9", "R1C8=4", "R1C0=2", "R6C2=5", "R7C3=2", "R3C4=6", "R4C2=7", "R0C0=5", "R0C5=7", "R4C1=5", "R5C7=2", "R3C1=2", "R3C3=8", "R1C6=7", "R3C5=4", "R8C1=8", "R6C8=2", "R1C3=3", "R2C6=6", "R7C2=9", "R6C4=7", "R4C3=1", "R3C6=3", "R8C7=6", "R6C6=4", "R6C1=1", "R4C8=6", "R8C8=9", "R2C0=1", "R2C2=4", "R2C8=5", "R0C1=3", "R1C5=6", "R3C8=7", "R0C7=9", "R8C3=5", "R7C5=1", "R5C3=7", "R7C4=8", "R1C2=8", "R4C6=9", "R5C2=3" ]
532
062107080030008250800004000000080700491060028500340100003079010170000500050000960
962157483734698251815234679326981745491765328587342196643579812179826534258413967
constraint_programming
[ "R1C3=6", "R4C3=7", "R3C5=1", "R5C8=6", "R0C6=4", "R7C2=9", "R3C7=4", "R3C2=6", "R6C3=5", "R3C0=3", "R7C3=8", "R4C5=5", "R8C3=4", "R1C2=4", "R7C5=6", "R3C8=5", "R2C7=7", "R6C0=6", "R1C8=1", "R1C0=7", "R5C7=9", "R6C6=8", "R0C4=5", "R2C6=6", "R8C2=8", "R7C7=3", "R1C4=9", "R6C1=4", "R2C8=9", "R2C3=2", "R8C5=3", "R5C2=7", "R5C1=8", "R2C4=3", "R0C8=3", "R8C4=1", "R2C1=1", "R5C5=2", "R7C8=4", "R3C1=2", "R8C8=7", "R6C8=2", "R3C3=9", "R0C0=9", "R7C4=2", "R8C0=2", "R4C6=3", "R2C2=5" ]
533
603090800000064050019070300020007400900800601701000030000402563085000900000901002
643195827872364159519278346328617495954823671761549238197482563285736914436951782
backtracking
[ "R6C0=1", "R0C5=5", "R8C1=3", "R1C2=2", "R0C3=1", "R6C1=9", "R3C4=1", "R3C8=5", "R6C2=7", "R5C6=2", "R2C5=8", "R5C3=5", "R8C2=6", "R2C7=4", "R5C4=4", "R1C1=7", "R5C8=8", "R2C3=2", "R1C8=9", "R7C5=6", "R8C6=7", "R1C0=8", "R4C4=2", "R7C0=2", "R3C3=6", "R3C2=8", "R4C2=4", "R5C1=6", "R7C3=7", "R5C5=9", "R0C7=2", "R7C8=4", "R8C4=5", "R8C7=8", "R8C0=4", "R7C4=3", "R3C0=3", "R0C1=4", "R2C8=6", "R3C7=9", "R2C0=5", "R7C7=1", "R4C5=3", "R4C7=7", "R4C1=5", "R1C6=1", "R0C8=7", "R6C4=8", "R1C3=3" ]
534
700650800018902630000040095093005047000001208000780060005820000634000000102000570
749653821518972634326148795893265147467391258251784369975826413634517982182439576
backtracking
[ "R8C1=8", "R0C7=2", "R1C4=7", "R1C0=5", "R4C7=5", "R2C2=6", "R2C0=3", "R6C7=1", "R3C3=2", "R4C2=7", "R3C6=1", "R5C8=9", "R0C2=9", "R5C1=5", "R7C8=2", "R7C7=8", "R4C1=6", "R8C5=9", "R0C5=3", "R4C4=9", "R4C3=3", "R7C3=5", "R5C5=4", "R2C3=1", "R0C8=1", "R5C6=3", "R7C6=9", "R6C6=4", "R8C4=3", "R7C4=1", "R0C1=4", "R8C3=4", "R3C4=6", "R4C0=4", "R2C1=2", "R6C0=9", "R6C8=3", "R3C0=8", "R6C1=7", "R5C2=1", "R2C6=7", "R2C5=8", "R5C0=2", "R6C5=6", "R8C8=6", "R1C8=4", "R7C5=7" ]
535
400080190070000030050010700002956400001702086093000500960500001007604002800003040
436287195179465238258319764782956413541732986693841527964528371317694852825173649
backtracking
[ "R1C8=8", "R2C0=2", "R5C0=6", "R8C1=2", "R0C3=2", "R4C4=3", "R0C2=6", "R1C3=4", "R3C1=8", "R6C5=8", "R7C1=1", "R0C5=7", "R8C4=7", "R5C3=8", "R2C3=3", "R1C0=1", "R2C5=9", "R7C4=9", "R6C7=7", "R4C1=4", "R2C7=6", "R2C2=8", "R5C8=7", "R1C2=9", "R5C5=1", "R0C8=5", "R6C6=3", "R3C7=1", "R6C2=4", "R4C0=5", "R8C6=6", "R8C3=1", "R2C8=4", "R7C6=8", "R8C8=9", "R3C8=3", "R1C6=2", "R3C0=7", "R1C4=6", "R0C1=3", "R8C2=5", "R1C5=5", "R6C4=2", "R7C7=5", "R5C4=4", "R5C7=2", "R4C6=9", "R7C0=3" ]
536
020503084001009002590870000010064000450000106087200030000008703003420690000000210
726513984831649572594872361312964857459387126687251439265198743173425698948736215
backtracking
[ "R1C4=4", "R8C5=6", "R3C8=7", "R6C2=5", "R8C4=3", "R2C6=3", "R6C7=4", "R1C6=5", "R6C3=1", "R6C0=2", "R5C8=9", "R8C2=8", "R8C3=7", "R1C3=6", "R3C0=3", "R7C8=8", "R1C7=7", "R2C8=1", "R5C0=6", "R8C0=9", "R0C2=6", "R8C1=4", "R7C1=7", "R7C5=5", "R0C4=1", "R4C7=2", "R1C0=8", "R2C2=4", "R5C5=1", "R2C5=2", "R4C2=9", "R7C0=1", "R5C4=5", "R8C8=5", "R3C7=5", "R2C7=6", "R4C3=3", "R0C6=9", "R3C3=9", "R4C4=8", "R3C6=8", "R6C1=6", "R6C4=9", "R4C5=7", "R5C6=4", "R3C2=2", "R1C1=3", "R0C0=7" ]
537
009005070210340000860090104970000208000007060002538000000613805050200390000800741
439185672217346589865792134973461258581927463642538917794613825158274396326859741
backtracking
[ "R0C4=8", "R3C5=1", "R5C7=1", "R1C5=6", "R7C2=8", "R5C8=7", "R5C0=6", "R1C8=9", "R4C0=5", "R8C4=5", "R8C0=3", "R0C8=2", "R6C0=7", "R4C4=2", "R5C6=9", "R1C2=7", "R3C3=4", "R0C1=3", "R2C7=3", "R2C2=5", "R8C2=6", "R4C3=9", "R5C1=4", "R2C3=7", "R2C5=2", "R4C2=1", "R0C6=6", "R6C1=9", "R7C8=6", "R3C2=3", "R7C5=4", "R0C3=1", "R1C7=8", "R8C1=2", "R8C5=9", "R1C6=5", "R7C4=7", "R4C8=3", "R3C4=6", "R0C0=4", "R3C7=5", "R6C7=2", "R4C1=8", "R6C2=4", "R4C6=4", "R7C0=1" ]
538
000000042030010785002470000059740601000003500007060038870001000041080396026050000
795836142634912785182475963359748621468123579217569438873691254541287396926354817
constraint_programming
[ "R0C3=8", "R8C0=9", "R2C5=5", "R8C6=8", "R4C1=6", "R0C5=6", "R4C2=8", "R8C7=1", "R2C1=8", "R4C0=4", "R0C0=7", "R6C3=6", "R6C2=3", "R3C0=3", "R3C5=8", "R7C3=2", "R1C3=9", "R2C7=6", "R5C0=2", "R0C6=1", "R5C5=9", "R4C8=9", "R1C0=6", "R0C4=3", "R4C3=1", "R8C3=3", "R0C1=9", "R2C6=9", "R4C4=2", "R0C2=5", "R1C2=4", "R5C1=1", "R7C0=5", "R5C6=4", "R6C4=9", "R6C7=5", "R7C5=7", "R1C5=2", "R6C8=4", "R3C7=2", "R4C7=7", "R2C8=3", "R8C8=7", "R2C0=1", "R6C6=2", "R8C5=4", "R5C3=5" ]
539
019302000003005700087000060004020800000509307035760009106030900000000042040817005
619372584423685791587491263794123856861549327235768419156234978378956142942817635
backtracking
[ "R4C1=6", "R2C0=5", "R7C2=8", "R3C8=6", "R3C3=1", "R2C6=2", "R2C3=4", "R0C0=6", "R4C0=8", "R8C2=2", "R1C0=4", "R8C6=6", "R3C5=3", "R8C7=3", "R0C8=4", "R5C6=4", "R7C0=3", "R4C7=2", "R0C4=7", "R1C7=9", "R3C0=7", "R8C0=9", "R3C1=9", "R5C5=8", "R3C7=5", "R5C7=1", "R4C2=1", "R7C6=1", "R0C7=8", "R2C8=3", "R6C1=5", "R1C4=8", "R6C8=8", "R7C4=5", "R7C5=6", "R6C3=2", "R5C0=2", "R4C4=4", "R1C8=1", "R7C3=9", "R1C3=6", "R0C6=5", "R2C5=1", "R6C5=4", "R6C7=7", "R7C1=7", "R1C1=2", "R2C4=9" ]
540
000060001458020000001030590036500084810006200040970030005400700960000018000097320
293765841458129673671834592736512984819346257542978136325481769967253418184697325
backtracking
[ "R6C7=6", "R2C1=7", "R1C7=7", "R0C1=9", "R8C0=1", "R5C5=8", "R0C5=5", "R7C5=3", "R2C5=4", "R0C2=3", "R8C2=4", "R4C3=3", "R4C8=7", "R5C6=1", "R7C2=7", "R3C4=1", "R1C5=9", "R1C3=1", "R8C8=5", "R8C3=6", "R7C6=4", "R2C0=6", "R4C2=9", "R4C4=4", "R0C7=4", "R8C1=8", "R0C6=8", "R4C7=5", "R0C3=7", "R3C5=2", "R3C0=7", "R2C3=8", "R6C5=1", "R1C6=6", "R6C8=9", "R2C8=2", "R5C0=5", "R7C3=2", "R6C1=2", "R3C6=9", "R7C4=5", "R0C0=2", "R6C0=3", "R5C8=6", "R1C8=3", "R5C2=2", "R6C4=8" ]
541
000006490050072030300004001009000158400500300006801020600000900017049500800200047
172386495954172836368954271729463158481527369536891724645738912217649583893215647
backtracking
[ "R7C3=6", "R4C8=9", "R1C8=6", "R6C8=2", "R5C1=3", "R8C1=9", "R1C0=9", "R6C2=5", "R4C5=7", "R0C3=3", "R7C0=2", "R8C5=5", "R5C8=4", "R8C6=6", "R3C1=2", "R0C8=5", "R6C7=1", "R7C7=8", "R6C3=7", "R5C6=7", "R2C2=8", "R2C4=5", "R4C7=6", "R0C0=1", "R4C1=8", "R4C4=2", "R6C4=3", "R5C4=9", "R2C7=7", "R0C4=8", "R1C6=8", "R2C6=2", "R4C2=1", "R5C0=5", "R3C3=4", "R7C8=3", "R6C1=4", "R6C5=8", "R0C1=7", "R8C2=3", "R3C0=7", "R3C5=3", "R1C3=1", "R2C3=9", "R1C2=4", "R3C4=6", "R8C4=1", "R2C1=6", "R0C2=2" ]
542
001294060020800007309000000200001094904620130083050000016900800000100050700030402
871294365625813947349765281267381594954627138183459726516942873432178659798536412
backtracking
[ "R0C6=3", "R8C7=1", "R5C7=2", "R6C4=4", "R7C4=7", "R2C1=4", "R0C0=8", "R3C4=8", "R5C5=9", "R1C6=9", "R2C4=6", "R3C3=3", "R5C0=1", "R5C6=7", "R7C6=6", "R1C7=4", "R2C5=5", "R7C8=9", "R2C7=8", "R8C3=5", "R7C2=2", "R3C2=7", "R3C6=5", "R0C1=7", "R1C0=6", "R1C4=1", "R8C5=6", "R1C5=3", "R5C8=6", "R2C6=2", "R2C8=1", "R4C8=8", "R8C2=8", "R7C0=4", "R7C1=3", "R6C8=3", "R6C0=5", "R2C3=7", "R3C1=6", "R6C5=2", "R4C1=5", "R8C1=9", "R6C7=7", "R5C3=4", "R0C8=5", "R4C5=7", "R1C2=5", "R7C5=8" ]
543
006800030300006091007041500080200004260037000004690250093070620540000108001002000
416859732358726491927341586789215364265437819134698257893174625542963178671582943
backtracking
[ "R8C7=4", "R0C5=9", "R1C2=8", "R1C4=2", "R0C8=2", "R8C1=7", "R4C8=9", "R0C0=4", "R8C6=9", "R1C1=5", "R7C5=3", "R4C2=5", "R3C2=9", "R3C5=5", "R0C6=7", "R2C3=3", "R4C7=1", "R1C3=7", "R6C0=8", "R5C0=1", "R3C0=7", "R4C3=4", "R3C4=1", "R1C6=4", "R7C2=2", "R7C3=9", "R4C6=8", "R3C6=3", "R5C5=8", "R8C8=3", "R5C1=3", "R3C7=6", "R7C7=7", "R7C4=6", "R6C8=5", "R8C0=6", "R2C7=8", "R8C3=5", "R6C5=4", "R2C8=6", "R6C3=1", "R0C4=5", "R5C8=7", "R2C1=2", "R0C1=1", "R2C0=9", "R8C4=8" ]
544
060003547005601200000000009090080370500010006028400001802076090004500000700940183
169823547475691238283754619691285374547319826328467951832176495914538762756942183
constraint_programming
[ "R8C2=6", "R8C1=5", "R2C0=2", "R7C8=2", "R2C6=6", "R3C3=2", "R2C7=1", "R7C0=9", "R4C7=2", "R3C0=6", "R7C6=7", "R7C5=8", "R7C7=6", "R3C8=4", "R0C4=2", "R3C5=5", "R8C5=2", "R4C5=9", "R5C4=6", "R3C2=1", "R7C4=3", "R4C3=3", "R7C1=1", "R6C6=4", "R4C1=4", "R1C4=9", "R4C6=8", "R6C1=3", "R0C3=8", "R0C0=1", "R1C1=7", "R2C5=4", "R6C8=5", "R1C7=3", "R2C4=5", "R5C6=9", "R5C0=3", "R5C7=5", "R2C2=3", "R4C2=7", "R2C1=8", "R2C3=7", "R6C3=1", "R1C8=8", "R0C2=9", "R1C0=4", "R5C5=7" ]
545
008032400100000072390050160506000007004060800000708090600024003020090005810006020
768132459145689372392457168586913247974265831231748596659824713427391685813576924
backtracking
[ "R2C3=4", "R8C4=7", "R0C3=1", "R6C1=5", "R5C4=4", "R4C1=7", "R4C0=9", "R2C5=7", "R4C8=1", "R6C7=1", "R6C3=8", "R3C4=1", "R7C5=1", "R6C6=7", "R5C0=2", "R3C6=2", "R1C1=4", "R3C5=3", "R4C5=5", "R7C2=7", "R1C2=5", "R6C2=9", "R8C3=5", "R8C2=3", "R1C4=8", "R3C1=8", "R2C8=8", "R5C6=5", "R5C1=3", "R4C3=2", "R2C2=2", "R1C5=9", "R7C6=6", "R1C6=3", "R1C3=6", "R8C8=4", "R4C7=3", "R5C8=6", "R0C0=7", "R8C6=9", "R0C1=6", "R7C7=8", "R7C3=3", "R5C2=1", "R7C0=4", "R0C8=9", "R0C7=5", "R3C3=9", "R3C7=4" ]
546
000096830030507002201048005000003790070400060048050103500000200960100400002600080
754296831836517942291348675125863794379421568648759123587934216963182457412675389
backtracking
[ "R0C0=7", "R5C5=9", "R3C3=8", "R0C1=5", "R5C0=6", "R7C5=2", "R1C7=4", "R4C0=3", "R2C3=3", "R0C8=1", "R7C2=3", "R1C0=8", "R6C5=4", "R4C4=2", "R3C1=2", "R8C0=4", "R8C5=5", "R7C4=8", "R7C7=5", "R6C4=3", "R6C2=7", "R3C4=6", "R8C6=3", "R4C5=1", "R2C1=9", "R6C1=8", "R4C6=5", "R6C8=6", "R4C8=8", "R7C8=7", "R1C2=6", "R8C8=9", "R8C4=7", "R3C0=1", "R3C8=4", "R1C4=1", "R6C3=9", "R4C2=9", "R0C3=2", "R3C2=5", "R5C3=7", "R0C2=4", "R1C6=9", "R2C7=7", "R2C6=6", "R5C7=2", "R6C7=1", "R8C1=1" ]
547
003900800000070542201000009000050000075340081004602900000006000086001470409085620
753924816968173542241568739192857364675349281834612957527436198386291475419785623
backtracking
[ "R1C5=3", "R1C0=9", "R2C6=7", "R6C1=2", "R8C1=1", "R2C5=8", "R3C2=2", "R1C3=1", "R5C0=8", "R7C4=9", "R4C6=2", "R0C0=7", "R2C7=3", "R2C1=4", "R3C3=8", "R3C1=9", "R5C1=3", "R3C8=4", "R3C0=1", "R7C0=3", "R7C3=2", "R8C3=7", "R2C3=5", "R5C8=7", "R6C2=7", "R4C0=6", "R1C2=8", "R0C5=4", "R6C3=4", "R7C8=5", "R6C7=9", "R0C8=6", "R4C5=9", "R5C7=5", "R5C4=1", "R8C8=3", "R6C0=5", "R3C7=6", "R3C6=3", "R3C5=7", "R1C1=6", "R0C4=2", "R6C8=8", "R2C4=6", "R6C6=1", "R0C1=5", "R6C4=3", "R0C7=1" ]
548
600324095000009800100000027430790000002060000050038014080600700701500930065010208
678324195524179863193856427436791582812465379957238614289643751741582936365917248
backtracking
[ "R5C3=2", "R8C7=4", "R1C0=5", "R1C2=4", "R2C6=4", "R0C1=7", "R2C3=8", "R2C5=6", "R1C3=1", "R3C2=6", "R4C3=4", "R2C1=9", "R2C2=3", "R7C1=4", "R6C7=5", "R4C0=8", "R0C6=1", "R8C3=9", "R3C7=8", "R7C5=2", "R1C8=3", "R4C1=1", "R1C7=6", "R4C8=9", "R6C4=4", "R2C4=5", "R1C4=7", "R0C2=8", "R7C4=8", "R6C5=3", "R5C0=9", "R5C2=7", "R6C0=2", "R6C2=9", "R7C8=6", "R3C8=2", "R4C5=5", "R5C6=6", "R4C7=7", "R3C6=5", "R3C5=1", "R8C0=3", "R8C5=7", "R6C8=1", "R1C1=2", "R4C6=3" ]
549
590230070870400001020006400360000008002190057000084130040005069730000000000700580
594231876876459321123876495361527948482193657957684132248315769735968214619742583
backtracking
[ "R5C3=6", "R8C0=6", "R6C0=2", "R2C4=7", "R7C5=8", "R0C5=1", "R2C8=5", "R6C4=1", "R5C8=2", "R0C6=8", "R1C2=6", "R6C2=8", "R0C8=6", "R3C2=1", "R8C2=9", "R5C2=7", "R8C1=1", "R1C7=2", "R4C1=8", "R0C2=4", "R3C6=9", "R4C5=3", "R6C6=7", "R7C2=5", "R7C3=9", "R1C5=9", "R5C1=5", "R8C8=3", "R2C3=8", "R3C4=2", "R3C3=5", "R3C5=7", "R1C6=3", "R7C6=2", "R2C0=1", "R7C7=1", "R7C8=4", "R4C0=4", "R8C5=2", "R2C7=9", "R5C0=9", "R2C2=3", "R7C4=6", "R6C3=3", "R8C4=4", "R4C6=6", "R1C4=5", "R3C7=4" ]
550
070040003050980706310020040040009000600070025000001930209500064000800507007600180
978146253452983716316725849843259671691378425725461938289517364164832597537694182
backtracking
[ "R0C5=6", "R8C0=5", "R7C4=3", "R1C0=4", "R6C1=8", "R4C1=9", "R3C2=3", "R8C8=2", "R5C4=6", "R3C4=5", "R7C2=4", "R1C5=3", "R2C3=7", "R3C8=1", "R8C5=4", "R8C1=3", "R7C0=1", "R2C6=8", "R7C1=6", "R2C8=9", "R7C7=9", "R1C2=2", "R5C1=2", "R4C2=1", "R6C5=7", "R2C2=6", "R0C3=1", "R0C7=5", "R0C2=8", "R4C6=4", "R2C5=5", "R8C4=9", "R6C4=1", "R5C3=4", "R4C5=8", "R3C3=2", "R5C2=5", "R7C5=2", "R4C3=3", "R5C8=8", "R5C0=7", "R0C6=2", "R3C7=7", "R0C0=9", "R1C7=1", "R6C6=3", "R3C0=8", "R3C6=6" ]
551
300070800064001003050600200047508020020097504000032900002000000600004097100856400
391275846264981753758643219947568321823197564516432978432719685685324197179856432
constraint_programming
[ "R6C4=1", "R1C6=7", "R4C3=1", "R7C2=5", "R5C8=8", "R3C0=9", "R8C1=7", "R8C8=2", "R7C4=2", "R7C3=3", "R0C7=4", "R5C2=6", "R2C4=4", "R2C8=9", "R5C0=5", "R4C7=6", "R6C6=6", "R1C0=2", "R1C7=5", "R0C2=1", "R4C0=8", "R7C6=1", "R1C3=9", "R4C2=3", "R5C7=7", "R3C4=6", "R8C7=3", "R6C3=7", "R1C4=8", "R3C8=1", "R6C0=4", "R2C7=1", "R0C3=2", "R5C3=4", "R0C5=5", "R0C8=6", "R2C2=8", "R7C1=8", "R2C5=3", "R6C5=9", "R6C1=3", "R2C0=7", "R5C1=1", "R6C7=8", "R6C8=5", "R0C1=9", "R8C2=9", "R3C6=3" ]
552
090523006007000000800604201000300004500408130000000809009005300203006475406807000
194523786627189543835674291978351624562498137341762859719245368283916475456837912
backtracking
[ "R1C4=8", "R1C6=5", "R3C5=1", "R8C8=2", "R3C4=5", "R3C0=9", "R1C7=4", "R6C3=2", "R8C1=5", "R6C7=6", "R5C3=7", "R2C7=9", "R7C3=9", "R6C8=8", "R5C5=2", "R3C7=2", "R3C2=8", "R5C4=6", "R1C0=6", "R8C6=9", "R4C8=7", "R5C7=5", "R6C4=4", "R6C1=1", "R0C2=4", "R1C5=9", "R5C2=1", "R5C0=3", "R2C4=7", "R4C1=6", "R3C1=7", "R4C4=9", "R0C0=1", "R2C1=3", "R5C1=4", "R1C3=1", "R0C6=7", "R7C4=1", "R7C1=8", "R6C0=7", "R4C2=2", "R8C7=1", "R3C6=6", "R1C8=3", "R0C7=8", "R8C4=3", "R1C1=2", "R2C2=5" ]
553
790600000002700031000008560070005000600020154031009780057100203400003019008940000
795631428862754931143298567274815396689327154531469782957186243426573819318942675
backtracking
[ "R8C8=5", "R5C0=5", "R3C4=1", "R3C7=9", "R3C0=2", "R2C4=9", "R8C5=2", "R3C6=3", "R0C8=8", "R7C2=6", "R6C7=4", "R0C4=3", "R6C0=9", "R3C8=6", "R2C0=1", "R2C2=3", "R4C5=7", "R7C6=8", "R6C4=8", "R5C3=4", "R5C8=2", "R3C2=4", "R4C3=3", "R8C6=6", "R1C6=9", "R5C4=6", "R7C3=5", "R3C3=8", "R8C7=7", "R6C5=6", "R1C5=4", "R0C2=5", "R2C3=2", "R8C1=1", "R0C6=4", "R8C0=3", "R7C1=2", "R4C1=8", "R2C1=4", "R2C8=7", "R0C7=2", "R0C5=1", "R1C1=6", "R7C4=7", "R4C2=9", "R1C0=8", "R1C4=5" ]
554
800000002001560009050031060009000154025900030008640027000023000004700000730190680
863479512241568379957231468679382154425917836318645927596823741184756293732194685
backtracking
[ "R8C2=2", "R7C8=3", "R3C0=6", "R4C8=6", "R2C3=2", "R3C5=2", "R1C6=3", "R0C3=4", "R1C0=2", "R0C6=5", "R0C7=1", "R1C7=7", "R5C6=9", "R5C5=5", "R7C1=8", "R7C5=6", "R6C1=9", "R6C0=5", "R7C6=2", "R4C4=1", "R4C5=7", "R3C4=8", "R8C5=4", "R4C0=4", "R6C8=1", "R7C4=5", "R2C0=9", "R7C7=9", "R6C6=7", "R2C8=8", "R0C1=6", "R3C1=7", "R7C0=1", "R1C5=8", "R8C8=5", "R6C2=6", "R0C5=9", "R4C6=8", "R2C6=4", "R2C2=7", "R6C3=8", "R5C1=1", "R5C0=3", "R3C3=3", "R1C1=4", "R0C2=3", "R6C7=4", "R0C4=7" ]
555
026900800001704900030506040008005006000000752700310400500298000040000380109600007
426931875851724963937586241298475136314869752765312498573298614642157389189643527
constraint_programming
[ "R6C7=1", "R3C3=4", "R2C8=1", "R8C1=8", "R7C4=5", "R5C7=9", "R3C0=2", "R0C7=7", "R8C7=2", "R6C2=3", "R4C5=9", "R7C5=7", "R5C5=2", "R1C7=6", "R2C0=9", "R3C1=9", "R1C8=3", "R1C4=2", "R3C6=1", "R6C1=7", "R6C8=4", "R5C1=6", "R4C2=4", "R0C0=4", "R7C3=1", "R8C4=4", "R1C0=8", "R5C2=5", "R7C2=2", "R2C6=2", "R0C8=5", "R8C5=3", "R4C3=8", "R3C4=7", "R1C1=5", "R6C6=6", "R4C0=3", "R2C4=8", "R4C4=6", "R4C1=1", "R0C5=1", "R2C2=7", "R0C4=3", "R7C8=9", "R3C7=3", "R5C8=8", "R7C0=6", "R8C6=5" ]
556
206000010000800030900015008000004052047680000300570840109208400063090070050360100
286943517715826934934715628698134752547682391321579846179258463863491275452367189
backtracking
[ "R7C6=2", "R6C4=5", "R3C3=1", "R8C8=9", "R1C0=7", "R0C1=8", "R3C0=6", "R6C8=3", "R0C5=3", "R0C3=9", "R7C0=8", "R5C2=1", "R5C5=9", "R3C2=8", "R4C5=2", "R4C8=1", "R8C7=8", "R2C7=2", "R2C2=4", "R1C2=5", "R7C8=5", "R1C8=4", "R2C1=3", "R1C5=6", "R5C8=6", "R2C3=7", "R4C7=9", "R0C8=7", "R8C0=4", "R0C6=5", "R1C4=2", "R3C4=3", "R0C4=4", "R8C2=2", "R1C6=9", "R6C1=7", "R3C1=9", "R7C5=1", "R6C7=6", "R1C1=1", "R4C0=5", "R5C1=2", "R8C5=7", "R2C6=6", "R4C6=3", "R7C3=4", "R3C6=7" ]
557
080005030000980001674100005058700300063200140002046008001500097000420000530001260
189675432325984671674132985458719326763258149912346758241563897896427513537891264
backtracking
[ "R1C1=2", "R0C6=4", "R3C7=2", "R6C0=2", "R5C3=3", "R7C5=7", "R7C6=5", "R0C2=9", "R7C8=3", "R7C1=9", "R0C4=7", "R4C4=5", "R5C7=5", "R6C6=8", "R0C8=2", "R5C0=9", "R8C8=4", "R4C5=8", "R6C5=3", "R1C7=7", "R0C0=1", "R3C5=9", "R7C0=8", "R1C6=6", "R2C7=8", "R0C3=6", "R5C6=7", "R4C0=7", "R8C3=8", "R2C5=2", "R6C1=4", "R3C8=6", "R3C4=1", "R1C2=5", "R3C0=4", "R2C4=3", "R2C6=9", "R7C2=6", "R8C4=9", "R1C0=3", "R8C2=7", "R5C1=1", "R7C7=1", "R1C5=4", "R4C8=9", "R6C4=6" ]
558
300762100040089030008300000570600018910200306000045200150007800203900040067000009
395762184741589632628314975572693418914278356836145297159427863283956741467831529
backtracking
[ "R6C8=3", "R1C0=7", "R4C7=5", "R8C3=8", "R2C5=4", "R7C5=6", "R3C6=4", "R1C3=5", "R5C8=7", "R1C6=6", "R7C8=1", "R8C7=2", "R6C7=6", "R7C6=7", "R5C0=8", "R2C6=9", "R8C5=1", "R3C5=3", "R4C5=8", "R0C2=5", "R0C1=9", "R5C2=6", "R2C0=6", "R5C1=3", "R6C3=4", "R2C8=5", "R3C2=2", "R0C8=4", "R8C6=5", "R6C2=9", "R7C1=8", "R2C1=2", "R1C8=2", "R5C3=1", "R3C4=9", "R2C4=1", "R0C7=8", "R8C4=3", "R4C4=7", "R4C2=4", "R6C4=2", "R7C4=5", "R5C7=9", "R1C2=1", "R2C7=7", "R8C0=4" ]
559
000002740000705306190060000403028007700900000060030120084300200002014035500006090
356182749248795316197463582413628957725941863869537124684359271972814635531276498
backtracking
[ "R6C5=9", "R4C7=6", "R7C1=7", "R8C2=1", "R3C3=6", "R5C8=4", "R0C4=8", "R4C2=5", "R2C6=5", "R4C5=1", "R6C0=6", "R6C4=5", "R3C7=5", "R4C8=3", "R6C8=1", "R3C1=1", "R2C2=7", "R0C3=1", "R0C0=3", "R5C0=8", "R7C3=8", "R8C6=4", "R0C1=5", "R4C6=8", "R8C4=7", "R1C7=1", "R1C2=8", "R1C4=9", "R4C1=2", "R8C3=2", "R7C0=9", "R5C5=7", "R2C8=2", "R2C3=4", "R2C5=3", "R5C2=9", "R6C7=7", "R0C2=6", "R3C6=9", "R8C1=3", "R4C4=4", "R7C6=6", "R2C7=8", "R1C1=4", "R1C0=2", "R8C8=8", "R0C8=9", "R5C3=5" ]
560
030475006200008400007610098040057000600280013700090205509000600000003001100720080
938475126216938457457612398342157869695284713781396245579841632824563971163729584
backtracking
[ "R0C7=2", "R8C6=5", "R8C2=3", "R7C6=9", "R1C4=3", "R8C1=6", "R6C8=2", "R8C5=9", "R7C1=2", "R6C5=1", "R4C6=7", "R2C5=2", "R7C0=8", "R2C1=5", "R4C1=9", "R1C8=7", "R5C5=6", "R1C7=5", "R0C2=8", "R7C4=6", "R4C5=4", "R6C3=8", "R8C8=4", "R7C7=7", "R5C3=3", "R3C6=8", "R7C2=4", "R7C3=5", "R0C0=9", "R6C4=4", "R1C2=6", "R5C2=1", "R1C1=1", "R5C7=4", "R3C3=1", "R6C7=3", "R3C0=3", "R3C7=6", "R4C2=5", "R2C0=4", "R6C1=7", "R0C6=1", "R2C6=3", "R5C1=8", "R1C3=9", "R3C2=2", "R3C8=9" ]
561
074205000003076004000008190020603050090000301050140002008090205600020408500807013
974215836183976524265438197421683759896752341357149682718394265639521478542867913
backtracking
[ "R3C8=9", "R7C3=5", "R6C7=6", "R2C4=3", "R4C2=6", "R1C1=8", "R4C7=4", "R8C2=2", "R2C8=7", "R5C2=7", "R7C7=7", "R0C7=3", "R4C4=5", "R3C2=1", "R2C0=2", "R0C0=9", "R3C4=8", "R2C1=6", "R2C2=5", "R7C2=9", "R3C6=7", "R0C8=6", "R4C3=7", "R1C3=9", "R5C0=3", "R5C6=6", "R3C0=4", "R1C7=2", "R4C5=2", "R5C7=8", "R7C1=3", "R5C5=9", "R7C5=1", "R0C4=1", "R6C0=7", "R4C0=8", "R8C1=4", "R1C6=5", "R2C3=4", "R0C6=8", "R1C0=1", "R6C3=3", "R6C1=1", "R8C6=9", "R6C5=4", "R8C4=6" ]
562
000420030940061020800970600000850700064090100500200943400080050030100006095000078
671428539943561827852973614319854762264397185587216943426789351738145296195632478
constraint_programming
[ "R5C5=6", "R3C0=3", "R4C5=7", "R0C5=8", "R1C6=8", "R7C4=4", "R1C8=7", "R2C1=5", "R8C3=6", "R2C7=1", "R6C6=3", "R1C2=3", "R2C5=3", "R6C1=2", "R0C6=5", "R0C0=6", "R7C2=8", "R3C7=6", "R8C5=2", "R6C2=6", "R8C0=1", "R3C2=9", "R5C4=1", "R4C8=5", "R6C5=9", "R3C5=4", "R2C2=2", "R3C1=1", "R5C2=7", "R7C6=2", "R2C8=4", "R0C1=7", "R4C0=2", "R7C0=7", "R0C2=1", "R7C5=5", "R4C3=3", "R8C6=4", "R5C1=8", "R3C8=2", "R4C7=8", "R6C8=1", "R6C3=7", "R0C8=9", "R8C4=3", "R7C7=9", "R1C3=5" ]
563
000050640680000050903004217090400060207013090568070000400138000700200903000007100
172359648684721359953864217391485762247613895568972431429138576715246983836597124
constraint_programming
[ "R0C2=2", "R6C7=7", "R4C1=4", "R4C6=8", "R8C2=6", "R7C4=4", "R0C0=1", "R1C5=1", "R1C3=7", "R7C7=8", "R8C0=8", "R6C2=9", "R3C5=5", "R3C4=8", "R4C8=5", "R2C3=8", "R8C1=3", "R0C5=9", "R3C2=1", "R6C6=5", "R5C7=3", "R0C8=8", "R4C3=6", "R6C8=6", "R3C8=2", "R5C8=1", "R0C3=3", "R7C5=6", "R5C5=2", "R8C3=5", "R8C4=9", "R1C2=4", "R1C4=2", "R0C1=7", "R1C8=9", "R1C6=3", "R8C7=2", "R3C0=3", "R3C6=7", "R2C4=6", "R6C1=2", "R5C6=4", "R5C3=9", "R7C1=1", "R7C2=5", "R8C8=4", "R2C1=5" ]
564
000004008200008950640000027081020040964050200507003006100300589000160000030709100
759234618213678954648591327381926745964857231527413896176342589892165473435789162
backtracking
[ "R8C0=4", "R6C4=4", "R1C2=3", "R8C8=2", "R0C2=9", "R1C8=4", "R2C5=1", "R7C1=9", "R5C1=2", "R6C5=2", "R0C0=7", "R5C7=9", "R7C8=3", "R7C0=8", "R2C6=3", "R6C1=7", "R4C3=8", "R8C4=8", "R3C3=9", "R0C4=3", "R2C4=9", "R6C2=6", "R7C6=4", "R7C5=5", "R7C7=7", "R2C3=5", "R5C3=4", "R3C0=3", "R7C2=2", "R2C2=8", "R3C5=6", "R0C6=6", "R0C3=2", "R4C8=1", "R5C6=8", "R0C1=5", "R3C6=7", "R1C3=6", "R4C5=7", "R3C8=5", "R8C7=6", "R1C1=1", "R1C4=7", "R0C7=1", "R5C4=1", "R4C7=3", "R8C2=5" ]
565
000086050000902108100040007009820304005309701006000900070000203093750000468001000
937186452654972138182543697719825364845369721326417985571698243293754816468231579
constraint_programming
[ "R3C0=7", "R8C7=7", "R3C1=1", "R0C6=4", "R2C1=8", "R4C1=4", "R8C3=2", "R7C6=8", "R6C2=1", "R5C4=1", "R2C3=5", "R1C0=6", "R4C0=8", "R8C4=3", "R5C1=2", "R1C4=7", "R0C3=1", "R7C7=1", "R0C1=3", "R6C3=6", "R6C0=5", "R1C7=3", "R6C7=4", "R6C4=9", "R0C8=2", "R1C1=5", "R2C2=2", "R5C0=3", "R5C5=7", "R0C0=9", "R5C7=8", "R2C6=6", "R8C6=5", "R7C0=2", "R6C5=8", "R1C2=4", "R4C4=6", "R7C8=6", "R4C7=2", "R2C7=9", "R5C8=5", "R8C8=9", "R3C7=6", "R5C3=4", "R2C5=3", "R3C5=5", "R7C5=4", "R0C2=7" ]
566
050600800008009301090030006087052014063407000500001009040285000200106070000900450
352614897678529341491738526987352614163497285524861739749285163235146978816973452
backtracking
[ "R6C7=6", "R2C5=8", "R5C4=6", "R6C6=1", "R0C4=1", "R3C3=3", "R7C8=8", "R4C4=9", "R7C4=4", "R4C7=8", "R2C7=2", "R5C3=8", "R6C8=3", "R1C3=5", "R2C3=7", "R5C1=2", "R8C0=8", "R8C2=6", "R3C6=6", "R0C0=3", "R8C5=3", "R3C0=9", "R1C4=2", "R2C6=5", "R6C2=9", "R6C0=7", "R1C1=7", "R0C8=7", "R7C6=9", "R5C6=7", "R4C6=2", "R0C2=2", "R7C1=3", "R5C7=3", "R0C7=9", "R1C0=6", "R7C2=5", "R8C8=2", "R1C7=4", "R0C5=4", "R2C2=1", "R4C0=1", "R8C4=7", "R8C1=1", "R5C2=4", "R2C0=4", "R4C8=5" ]
567
040300007009060203620040910500890034300010890002000000091200300407006500005701080
148329657759168243623547918516892734374615892982473165891254376437986521265731489
backtracking
[ "R7C1=3", "R4C8=2", "R8C1=6", "R0C7=5", "R6C0=8", "R5C8=5", "R4C1=7", "R8C4=3", "R3C1=1", "R1C7=4", "R1C1=5", "R0C2=8", "R8C8=9", "R6C8=6", "R0C4=2", "R7C4=8", "R6C4=5", "R4C3=6", "R7C7=2", "R3C5=2", "R8C6=4", "R2C3=5", "R5C4=7", "R5C7=6", "R0C0=1", "R3C6=7", "R2C2=3", "R5C6=1", "R6C7=7", "R7C3=9", "R4C5=5", "R5C5=3", "R5C0=9", "R1C3=1", "R3C2=6", "R0C6=6", "R4C2=4", "R8C0=2", "R2C5=7", "R2C8=8", "R1C0=7", "R6C5=4", "R1C5=8", "R5C3=4", "R7C8=1", "R0C5=9", "R5C1=8" ]
568
008000500000920007050300194007106200200090300030008046096870001301060805004002900
978641532413925687652387194847136259265794318139258746596873421321469875784512963
backtracking
[ "R4C8=8", "R6C7=2", "R3C0=8", "R8C3=5", "R2C0=6", "R8C7=6", "R7C5=9", "R1C6=6", "R5C3=2", "R3C8=9", "R3C1=4", "R5C4=5", "R5C2=9", "R4C3=7", "R1C1=1", "R2C4=8", "R2C2=2", "R0C0=9", "R3C7=5", "R0C4=4", "R7C1=2", "R6C0=5", "R0C8=2", "R4C2=5", "R4C5=4", "R4C1=6", "R0C5=1", "R7C7=7", "R6C6=4", "R5C6=7", "R5C0=1", "R8C0=7", "R1C2=3", "R0C3=6", "R7C3=4", "R1C0=4", "R0C7=3", "R8C4=1", "R6C5=3", "R8C1=8", "R2C5=7", "R1C7=8", "R8C8=3", "R4C7=1", "R0C1=7", "R3C4=3", "R1C5=5" ]
569
048500090010780200260009030109407000320010054500630008000094103037000500800000026
748523691913786245265149837189457362326918754574632918652894173437261589891375426
backtracking
[ "R7C3=2", "R3C6=3", "R2C3=1", "R3C1=8", "R2C6=8", "R2C4=4", "R5C5=2", "R2C8=7", "R5C2=4", "R7C8=9", "R8C6=4", "R1C0=9", "R5C6=9", "R8C3=3", "R1C7=4", "R8C2=1", "R3C4=5", "R8C4=7", "R6C1=5", "R3C7=6", "R5C7=1", "R0C8=1", "R7C0=4", "R2C2=5", "R8C5=5", "R3C8=2", "R1C5=6", "R1C2=3", "R4C5=8", "R4C3=9", "R0C5=3", "R7C4=6", "R6C3=8", "R7C5=1", "R0C6=6", "R4C6=7", "R1C8=5", "R0C0=7", "R6C7=7", "R6C2=2", "R8C1=9", "R6C0=6", "R0C4=2", "R5C1=7", "R7C7=8", "R4C2=6" ]
570
870000503065001080014000007000430208000109005049520060003080000506702400120390006
872946513365271984914853627651437298238169745749528361493685172586712439127394856
backtracking
[ "R4C2=8", "R0C3=9", "R8C7=5", "R4C6=7", "R2C4=5", "R6C1=9", "R2C3=8", "R8C2=7", "R5C5=8", "R8C6=8", "R1C8=4", "R0C2=2", "R1C4=7", "R3C5=7", "R6C6=1", "R2C5=3", "R6C8=2", "R3C1=5", "R2C6=6", "R2C0=9", "R4C4=6", "R5C8=1", "R8C5=4", "R1C6=9", "R6C0=4", "R0C7=1", "R7C7=3", "R4C0=2", "R7C1=8", "R3C2=1", "R6C7=7", "R6C3=6", "R4C7=4", "R0C5=6", "R7C8=9", "R1C0=3", "R3C0=6", "R5C0=7", "R6C5=5", "R4C1=3", "R0C4=4", "R2C7=2", "R3C7=9", "R1C3=2", "R5C6=3", "R7C4=1" ]
571
508010960010370000020069007005030008000408106304020790030790004600500000001000829
578214963916375482423869517165937248297458136384126795832791654649582371751643829
backtracking
[ "R6C7=5", "R1C8=2", "R7C4=8", "R1C5=5", "R7C1=4", "R8C4=4", "R3C5=7", "R7C8=1", "R2C7=1", "R8C1=5", "R2C0=4", "R8C3=6", "R5C5=6", "R7C5=2", "R4C4=5", "R3C6=2", "R3C0=1", "R2C6=5", "R3C1=6", "R1C7=8", "R7C2=9", "R2C3=8", "R3C3=9", "R0C8=3", "R0C1=7", "R4C0=2", "R0C3=2", "R3C7=4", "R6C0=8", "R6C5=1", "R4C7=3", "R4C1=9", "R7C7=7", "R0C5=4", "R8C5=3", "R7C6=3", "R5C8=5", "R5C1=8", "R1C6=4", "R6C6=6", "R5C3=1", "R2C2=3", "R8C0=7", "R1C0=9", "R4C2=7", "R1C2=6", "R6C2=2" ]
572
002004907003050000910070006400562010000001020005400803080600301040729050756800004
562134987873956142914278536438562719697381425125497863289645371341729658756813294
constraint_programming
[ "R8C5=3", "R6C5=5", "R0C7=8", "R1C5=6", "R2C6=5", "R3C2=8", "R7C6=6", "R0C4=3", "R8C6=2", "R6C2=9", "R5C0=1", "R4C6=4", "R0C1=6", "R5C7=6", "R7C0=3", "R2C5=8", "R4C2=7", "R4C8=5", "R5C4=9", "R6C0=2", "R3C1=3", "R3C6=7", "R3C8=9", "R2C7=3", "R5C1=2", "R0C0=5", "R1C1=7", "R0C3=1", "R7C8=8", "R1C0=8", "R4C3=3", "R1C6=1", "R8C7=9", "R2C3=2", "R4C4=8", "R7C2=1", "R8C4=1", "R6C7=7", "R4C0=6", "R5C5=7", "R4C1=9", "R1C7=4", "R1C8=2", "R6C4=4", "R2C2=4", "R1C3=9" ]
573
005600120208000009976200300060043005402001008000709060050100970030057000100980040
345698127218374659976215384761843295492561738583729461854132976639457812127986543
backtracking
[ "R5C6=4", "R6C5=2", "R8C1=2", "R6C4=3", "R1C7=5", "R8C5=6", "R0C1=4", "R2C5=5", "R7C7=1", "R5C2=3", "R2C8=4", "R3C6=2", "R7C2=9", "R1C3=3", "R7C3=4", "R5C0=5", "R8C2=7", "R8C6=5", "R7C6=8", "R3C3=8", "R3C2=1", "R7C8=2", "R3C0=7", "R6C2=4", "R2C7=8", "R4C1=9", "R1C5=4", "R4C6=7", "R3C7=9", "R1C4=7", "R5C1=8", "R5C8=1", "R0C0=3", "R4C4=6", "R1C1=1", "R8C8=3", "R7C0=6", "R0C8=7", "R6C8=6", "R6C0=8", "R0C4=9", "R5C4=2", "R4C3=5", "R1C6=6", "R2C4=1", "R4C7=3", "R0C5=8" ]
574
030070091079480002508301000000067000210800400086050309000000916300020705400605000
634572891179486532528391674943267158215839467786154329852743916361928745497615283
backtracking
[ "R8C8=3", "R0C6=8", "R1C5=6", "R4C2=5", "R6C1=5", "R8C6=2", "R3C8=8", "R5C0=7", "R1C7=3", "R6C0=8", "R1C0=1", "R3C6=1", "R4C8=7", "R6C4=4", "R5C7=2", "R4C7=6", "R2C7=7", "R2C8=4", "R6C2=2", "R6C5=3", "R0C0=6", "R7C3=9", "R7C2=1", "R0C3=5", "R3C1=4", "R0C2=4", "R8C1=9", "R2C6=6", "R2C4=9", "R1C6=5", "R5C5=4", "R7C5=8", "R2C1=2", "R4C4=3", "R3C7=5", "R0C5=2", "R8C4=1", "R3C3=2", "R3C2=3", "R6C3=7", "R3C0=9", "R4C5=9", "R8C7=8", "R8C2=7", "R7C7=4", "R5C3=1", "R7C1=6" ]
575
010400067002090800540082001800600720003009514070205900090300000000047009360001050
918453267732196845546782391859614723623879514174235986495368172281547639367921458
backtracking
[ "R2C6=3", "R4C4=7", "R5C8=6", "R5C0=1", "R1C7=4", "R6C7=7", "R1C3=1", "R6C0=4", "R1C5=6", "R3C5=4", "R3C8=3", "R0C2=8", "R0C5=3", "R2C3=7", "R3C4=1", "R5C7=8", "R0C6=2", "R3C2=9", "R1C8=5", "R3C1=5", "R0C0=9", "R8C8=8", "R7C3=5", "R8C3=9", "R1C1=3", "R7C0=2", "R6C4=6", "R6C8=2", "R4C3=8", "R6C2=5", "R8C2=7", "R0C4=5", "R7C2=1", "R6C5=8", "R5C2=4", "R7C6=6", "R6C6=1", "R2C7=9", "R5C4=3", "R4C0=6", "R2C2=6", "R4C1=2", "R7C7=3", "R7C1=8", "R1C0=7", "R8C4=2", "R8C6=4" ]
576
400602010803500000061000400005410702200005100070080609006900830740830500090004060
457692318823541976961378425635419782289765143174283659516927834742836591398154267
constraint_programming
[ "R7C8=1", "R3C0=6", "R7C7=9", "R4C3=7", "R8C8=7", "R1C4=4", "R5C5=3", "R4C7=4", "R4C8=3", "R0C8=8", "R6C0=5", "R1C8=6", "R2C7=2", "R1C1=2", "R5C3=2", "R2C5=8", "R0C4=9", "R7C5=6", "R2C3=3", "R8C4=5", "R4C1=8", "R1C7=7", "R2C8=5", "R1C5=1", "R2C0=9", "R4C2=9", "R8C3=1", "R5C0=1", "R1C6=9", "R6C8=4", "R8C2=8", "R0C2=7", "R8C6=2", "R7C2=2", "R0C1=5", "R2C4=7", "R5C7=5", "R3C7=8", "R0C6=3", "R6C5=7", "R5C2=4", "R4C4=6", "R6C4=2", "R3C1=3", "R3C5=9", "R8C0=3", "R6C1=1" ]
577
000723000001000209780041006200089037500076480008300000040100500059600042300007190
965723814431865279782941356214589637593276481678314925847192563159638742326457198
backtracking
[ "R7C6=7", "R5C6=9", "R6C0=8", "R8C3=4", "R6C2=7", "R5C7=2", "R0C1=6", "R8C4=5", "R7C0=1", "R2C7=5", "R6C8=3", "R0C2=5", "R3C3=5", "R4C3=2", "R6C7=6", "R5C8=5", "R1C4=6", "R6C5=2", "R1C7=7", "R1C3=8", "R1C5=5", "R4C1=9", "R0C8=4", "R8C2=6", "R2C6=3", "R1C0=4", "R5C0=6", "R5C1=7", "R4C8=1", "R5C5=4", "R3C1=1", "R7C4=3", "R1C1=3", "R8C8=8", "R2C3=9", "R2C2=2", "R3C6=6", "R6C4=9", "R4C2=3", "R3C2=4", "R0C6=8", "R0C0=9", "R7C5=8", "R8C1=2", "R5C4=1", "R0C7=1" ]
578
309210000000004608002708003706000045000072100010905300604000090050031002801560007
389216754175394628462758913796183245543672189218945376634827591957431862821569437
backtracking
[ "R2C0=4", "R4C1=4", "R7C6=8", "R4C2=3", "R0C7=5", "R6C4=2", "R4C8=9", "R3C5=3", "R6C6=5", "R2C7=1", "R1C4=9", "R0C8=4", "R8C1=2", "R2C4=5", "R1C2=5", "R1C1=7", "R5C4=4", "R5C7=7", "R8C6=4", "R1C3=3", "R0C1=8", "R2C6=9", "R8C5=9", "R1C0=1", "R3C1=9", "R4C3=6", "R3C3=1", "R6C5=7", "R7C7=6", "R8C7=3", "R6C3=8", "R2C1=6", "R6C8=1", "R5C8=6", "R6C1=3", "R4C0=5", "R5C0=2", "R4C7=8", "R3C4=8", "R5C2=8", "R7C0=9", "R7C3=4", "R1C7=2", "R0C5=6", "R0C6=7", "R7C2=7", "R3C6=2" ]
579
008052000200046000009730140052080039030200500401000607095017080000005070610009004
148952763273146895569738142752681439936274518481593627395417286824365971617829354
backtracking
[ "R0C6=7", "R3C5=1", "R4C5=4", "R8C3=8", "R3C0=7", "R2C5=8", "R2C8=2", "R6C0=3", "R7C2=4", "R1C1=7", "R3C6=4", "R1C2=3", "R5C1=8", "R7C4=6", "R8C7=5", "R7C8=1", "R4C0=9", "R8C6=3", "R2C0=5", "R6C8=6", "R0C1=4", "R6C6=2", "R0C0=1", "R8C2=7", "R0C8=3", "R1C3=1", "R4C2=6", "R5C3=5", "R5C7=2", "R7C1=2", "R8C4=2", "R2C1=6", "R0C7=6", "R4C8=8", "R6C3=4", "R4C7=1", "R5C4=9", "R1C6=8", "R4C4=7", "R1C7=9", "R3C3=6", "R7C6=9", "R7C0=8", "R7C3=3", "R1C8=5", "R5C5=3", "R0C3=9" ]
580
040020608009004005260017900090700804070035009000200130005009000010800076003046002
547923618139684725268517943392761854871435269456298137625379481914852376783146592
backtracking
[ "R1C0=1", "R0C5=3", "R1C1=3", "R8C7=9", "R7C0=9", "R0C2=7", "R1C6=7", "R4C2=1", "R5C0=4", "R8C3=1", "R0C7=1", "R5C1=5", "R3C2=2", "R8C1=8", "R8C0=7", "R6C6=4", "R3C4=6", "R0C0=5", "R4C0=8", "R7C5=2", "R4C3=4", "R0C3=9", "R6C1=2", "R3C5=1", "R2C3=5", "R1C3=6", "R4C7=6", "R3C0=3", "R7C4=5", "R5C8=7", "R5C5=8", "R5C2=6", "R3C7=5", "R2C2=8", "R8C6=5", "R6C4=7", "R1C7=2", "R1C4=8", "R6C7=8", "R5C4=9", "R4C6=2", "R6C3=3", "R2C8=3", "R6C8=1", "R6C0=6", "R2C7=4", "R7C6=3", "R7C2=4" ]
581
120400307400006050068025090902000100043010082000300700000609003051080004709000800
125498367497136258368725491972864135543917682816352749284679513651283974739541826
constraint_programming
[ "R3C4=6", "R0C2=5", "R7C7=7", "R7C0=6", "R6C2=4", "R3C8=5", "R6C7=1", "R3C5=4", "R4C6=6", "R7C5=3", "R5C7=4", "R0C4=9", "R4C5=7", "R8C3=5", "R7C6=9", "R2C3=7", "R2C6=4", "R8C8=6", "R3C7=3", "R3C3=8", "R8C7=2", "R1C4=3", "R5C0=8", "R6C1=8", "R2C8=1", "R1C1=9", "R5C8=9", "R6C0=2", "R5C1=1", "R1C6=2", "R0C7=6", "R8C5=1", "R4C3=9", "R3C1=7", "R0C5=8", "R5C4=5", "R6C6=5", "R8C4=4", "R2C0=3", "R8C1=3", "R5C5=2", "R7C3=2", "R1C8=8", "R1C2=7", "R6C4=7", "R1C3=1", "R5C2=6", "R4C0=5" ]
582
000400600813002007906000280004730825009010000050000071080067030035100094207050000
572483619813692457946571283164739825729815346358246971481967532635128794297354168
backtracking
[ "R8C5=4", "R0C8=9", "R1C3=6", "R7C6=7", "R0C7=1", "R5C3=2", "R7C0=6", "R4C6=3", "R1C6=4", "R6C3=9", "R3C0=1", "R2C3=5", "R0C2=2", "R0C1=7", "R5C0=3", "R6C6=5", "R1C7=5", "R4C7=4", "R6C2=1", "R1C4=9", "R4C0=7", "R7C4=2", "R8C1=9", "R2C1=4", "R5C2=8", "R8C7=6", "R2C4=7", "R8C8=8", "R0C5=3", "R7C5=8", "R6C0=4", "R0C4=8", "R4C3=8", "R4C8=6", "R5C4=4", "R3C5=9", "R5C5=6", "R8C6=1", "R6C8=2", "R2C8=3", "R3C1=6", "R4C5=5", "R5C6=9", "R2C5=1", "R0C0=5", "R8C3=3", "R4C1=2" ]
583
026080050009306004080570900900030207650001300010008000730104580000920103400000000
326489751579316824184572936948635217657241398213798465732164589865927143491853672
backtracking
[ "R8C3=8", "R0C0=3", "R2C0=1", "R8C2=1", "R8C6=6", "R3C7=1", "R4C7=9", "R4C8=8", "R5C7=6", "R3C3=6", "R6C4=6", "R7C5=7", "R1C7=2", "R5C2=3", "R8C8=2", "R6C8=9", "R3C5=5", "R3C1=4", "R0C6=7", "R8C4=5", "R3C2=8", "R8C1=9", "R6C2=2", "R1C4=1", "R2C8=6", "R5C6=4", "R5C0=2", "R7C1=6", "R8C7=7", "R0C8=1", "R5C8=5", "R0C5=9", "R8C5=3", "R1C6=8", "R1C0=5", "R7C2=5", "R4C3=2", "R2C5=2", "R4C4=4", "R2C7=3", "R0C3=4", "R5C3=7", "R7C7=4", "R2C2=4", "R4C2=7", "R7C0=8", "R5C4=9", "R1C1=7" ]
584
030000000700090430600280005025006390001004750006130800000310204894000010000500067
138457629752691438649283175425876391381924756976135842567319284894762513213548967
backtracking
[ "R7C6=5", "R4C3=9", "R0C7=2", "R1C5=1", "R4C4=2", "R1C1=5", "R2C1=4", "R6C5=9", "R8C0=2", "R3C3=8", "R1C3=6", "R4C0=3", "R6C1=6", "R3C8=1", "R0C2=8", "R5C0=9", "R7C4=6", "R7C3=7", "R2C5=3", "R7C8=3", "R8C6=9", "R2C6=1", "R2C7=7", "R8C1=1", "R5C7=4", "R0C8=9", "R8C5=8", "R4C1=8", "R0C0=1", "R4C8=6", "R3C0=4", "R3C4=7", "R1C2=2", "R8C2=3", "R8C4=4", "R0C5=7", "R0C3=4", "R6C7=8", "R1C8=8", "R0C6=6", "R7C5=2", "R5C8=2", "R6C0=5", "R0C4=5", "R6C2=7", "R5C5=5", "R5C1=7", "R2C2=9" ]
585
007000306900850120020009050398407000005060002460081000003015970800030001010200540
587142396934856127621379854398427615175963482462581739243615978859734261716298543
backtracking
[ "R7C6=2", "R1C1=3", "R4C1=7", "R2C4=7", "R4C5=3", "R2C3=3", "R8C4=9", "R7C5=4", "R3C8=5", "R4C0=1", "R4C7=8", "R0C3=1", "R8C0=7", "R0C7=9", "R5C8=9", "R2C8=4", "R1C8=7", "R3C6=6", "R2C6=8", "R8C2=6", "R4C6=4", "R7C3=7", "R0C1=8", "R1C2=4", "R4C3=9", "R8C8=3", "R5C2=2", "R1C5=6", "R7C1=5", "R7C7=6", "R3C4=2", "R5C6=7", "R2C2=1", "R5C3=5", "R8C5=8", "R7C2=9", "R0C0=5", "R6C8=8", "R5C7=3", "R3C7=1", "R6C1=4", "R0C4=4", "R2C0=6", "R6C3=6", "R6C0=2", "R0C5=2" ]
586
107060009504900802200400130001500400800000007653080000008007204020310060700200095
137862549564931872289475136971526483842193657653784921398657214425319768716248395
backtracking
[ "R2C8=6", "R3C0=9", "R5C8=1", "R6C1=9", "R0C6=5", "R5C5=4", "R8C2=6", "R7C6=7", "R5C7=2", "R7C5=9", "R6C3=6", "R7C8=8", "R8C5=8", "R6C7=1", "R3C4=2", "R1C5=1", "R0C7=4", "R0C5=2", "R2C4=7", "R4C4=9", "R4C1=4", "R6C4=5", "R4C6=6", "R2C2=9", "R3C8=3", "R8C1=1", "R5C3=7", "R1C1=6", "R8C4=4", "R5C6=9", "R7C2=5", "R3C5=6", "R3C1=7", "R7C0=4", "R1C4=3", "R2C1=8", "R4C3=1", "R2C5=5", "R6C0=3", "R0C1=3", "R0C3=8", "R1C7=7", "R8C6=3", "R4C2=2", "R4C5=3", "R3C7=8", "R4C7=5" ]
587
000020030065007120000409806010000509406013007879040000007800450008601700290500300
784126935965387124123459876312768549456913287879245613637892451548631792291574368
backtracking
[ "R3C4=6", "R1C3=3", "R0C2=4", "R0C8=5", "R2C2=3", "R4C1=5", "R7C4=3", "R6C0=6", "R3C0=3", "R1C4=8", "R0C0=7", "R7C0=5", "R7C7=9", "R5C8=3", "R6C1=3", "R2C4=5", "R3C3=7", "R4C3=9", "R3C7=4", "R2C0=1", "R7C1=4", "R5C3=2", "R4C7=8", "R3C2=2", "R6C8=1", "R1C0=9", "R0C5=6", "R8C7=6", "R8C5=4", "R1C8=4", "R4C6=2", "R2C1=2", "R5C5=5", "R0C1=8", "R7C8=2", "R3C5=8", "R5C6=6", "R0C3=1", "R8C4=7", "R8C8=8", "R5C7=1", "R2C7=7", "R6C4=9", "R6C5=2", "R0C6=9", "R8C2=1" ]
588
005070480008209035600000002400023000097500800050800096500084000079600120360000700
925376481748219635631458972486923517297561843153847296512784369879635124364192758
constraint_programming
[ "R2C6=9", "R3C8=7", "R4C7=4", "R4C0=2", "R0C5=6", "R5C5=7", "R3C7=1", "R0C8=1", "R4C8=3", "R2C1=3", "R5C4=4", "R3C1=8", "R5C2=3", "R6C1=1", "R1C6=6", "R7C0=8", "R8C4=9", "R6C3=7", "R1C1=4", "R8C3=1", "R2C4=5", "R5C0=1", "R8C2=4", "R4C4=6", "R2C5=8", "R0C3=3", "R2C7=7", "R1C0=7", "R6C8=9", "R4C5=1", "R8C8=8", "R3C2=6", "R0C0=9", "R6C6=3", "R0C1=2", "R2C3=4", "R8C7=5", "R8C5=2", "R6C7=6", "R1C4=1", "R3C3=9", "R5C6=2", "R7C5=5", "R6C2=2", "R7C8=4", "R2C2=1", "R3C6=5", "R7C4=3" ]
589
100009060000480209004006305020700030360040108958001000000200400286300500000097001
132579864675483219894126375421758936367942158958631742719265483286314597543897621
backtracking
[ "R2C0=8", "R6C1=1", "R6C5=5", "R2C7=7", "R8C3=8", "R7C8=7", "R3C6=9", "R3C5=8", "R7C4=1", "R8C7=2", "R4C5=2", "R3C8=6", "R8C6=6", "R0C3=5", "R8C2=3", "R5C6=7", "R1C0=6", "R5C8=2", "R6C4=6", "R4C3=9", "R8C0=5", "R0C8=4", "R1C2=5", "R0C4=7", "R5C7=4", "R1C1=7", "R0C1=3", "R6C8=3", "R6C7=8", "R5C3=6", "R1C7=1", "R8C1=4", "R7C7=9", "R6C2=9", "R2C4=2", "R1C5=3", "R4C7=5", "R4C2=7", "R2C1=9", "R0C6=8", "R2C3=1", "R3C4=5", "R5C4=3", "R6C0=7", "R3C0=4", "R3C2=1", "R7C5=4", "R0C2=2" ]
590
980000740060380000003001050810009020205060310030500007007200506000004000092856004
981625743564387291723941658816739425275468319439512867147293586658174932392856174
backtracking
[ "R7C2=8", "R7C4=7", "R2C6=6", "R6C5=3", "R4C8=9", "R2C3=9", "R0C8=3", "R1C8=1", "R3C2=6", "R0C2=1", "R0C5=5", "R3C8=5", "R2C1=2", "R4C1=7", "R1C0=5", "R5C0=4", "R2C0=7", "R7C8=2", "R3C3=7", "R6C7=8", "R5C2=9", "R5C4=1", "R8C6=1", "R7C3=1", "R5C7=6", "R1C5=7", "R3C4=3", "R1C6=2", "R5C5=2", "R0C4=2", "R8C7=7", "R5C6=8", "R4C5=8", "R1C2=4", "R6C0=1", "R7C6=9", "R3C6=4", "R4C3=4", "R6C4=9", "R2C8=8", "R1C7=9", "R7C7=3", "R2C4=4", "R7C0=6", "R6C1=4", "R7C1=5", "R8C0=3", "R0C3=6" ]
591
500700820600100003000845000070000300809002056200504098004000607100038049026090100
591763824648129573732845961475986312819372456263514798984251637157638249326497185
constraint_programming
[ "R8C7=8", "R1C6=5", "R6C1=8", "R1C1=4", "R2C8=1", "R8C5=7", "R3C3=9", "R7C2=7", "R4C6=4", "R6C4=5", "R1C7=7", "R2C1=3", "R1C2=8", "R6C0=9", "R2C7=6", "R4C4=7", "R0C1=9", "R1C4=2", "R2C6=9", "R0C4=6", "R6C7=3", "R6C3=2", "R3C4=8", "R8C8=5", "R7C3=6", "R5C1=6", "R8C3=4", "R2C0=7", "R0C5=3", "R3C5=6", "R7C1=5", "R3C0=4", "R6C5=1", "R3C8=2", "R3C2=5", "R4C1=1", "R2C2=2", "R5C2=3", "R1C5=9", "R4C3=3", "R5C4=1", "R7C6=2", "R5C6=7", "R0C2=1", "R8C0=3", "R3C7=1", "R0C8=4" ]
592
030216000070005600501930800005000010090304700300780209020008040900060002008590370
834216597279845631561937824785629413192354768346781259623178945957463182418592376
backtracking
[ "R7C5=3", "R7C6=1", "R2C8=4", "R1C4=4", "R8C1=1", "R7C1=5", "R6C0=6", "R7C7=8", "R0C8=7", "R8C5=2", "R5C1=4", "R3C1=8", "R3C8=3", "R1C2=9", "R5C2=6", "R0C2=4", "R1C3=8", "R4C0=1", "R6C4=7", "R7C3=4", "R2C1=6", "R4C8=8", "R7C2=7", "R2C5=7", "R0C7=9", "R3C5=9", "R3C6=4", "R5C7=5", "R1C8=1", "R8C8=6", "R6C3=1", "R4C7=6", "R2C7=2", "R6C6=9", "R4C4=5", "R6C8=5", "R4C2=2", "R8C0=4", "R3C0=7", "R1C0=2", "R3C3=6", "R0C6=5", "R3C4=2", "R5C5=1", "R1C7=3", "R0C0=8", "R6C2=3" ]
593
026010000000083007480507090050264180000090006900008350209000403500700010004002800
726419538195683247483527691357264189841395726962178354279851463538746912614932875
constraint_programming
[ "R8C0=6", "R3C0=3", "R4C3=3", "R4C2=1", "R2C8=1", "R4C6=7", "R0C5=9", "R8C7=7", "R5C2=2", "R6C1=7", "R1C2=5", "R1C3=6", "R4C7=2", "R1C0=1", "R3C8=9", "R7C2=8", "R7C1=3", "R4C1=4", "R1C1=9", "R0C3=4", "R7C5=6", "R8C3=9", "R6C4=5", "R7C8=2", "R3C2=7", "R0C0=7", "R4C5=5", "R6C7=6", "R0C6=5", "R2C6=6", "R0C7=3", "R1C7=4", "R2C4=2", "R5C1=6", "R2C2=3", "R5C8=4", "R6C3=8", "R7C6=9", "R5C3=1", "R5C4=7", "R0C8=8", "R4C0=8", "R1C6=2", "R6C5=1", "R8C8=5", "R8C1=1", "R8C4=3", "R7C4=4" ]
594
100020500580601900073080002900002170060300008000005490030400001815000740007900060
196723584582641937473589612954862173761394258328175496639457821815236749247918365
backtracking
[ "R5C3=1", "R5C1=2", "R6C2=9", "R8C6=3", "R0C7=8", "R4C6=2", "R3C1=5", "R5C8=6", "R2C3=5", "R6C5=7", "R5C2=8", "R1C7=3", "R2C0=4", "R3C3=8", "R3C4=6", "R2C5=9", "R8C4=1", "R4C4=9", "R7C4=3", "R3C2=4", "R7C8=9", "R7C5=6", "R5C0=3", "R4C7=5", "R8C1=4", "R8C0=2", "R8C5=8", "R6C4=5", "R2C6=6", "R0C2=6", "R6C0=6", "R6C6=8", "R5C4=7", "R4C5=4", "R4C0=7", "R4C2=1", "R2C7=1", "R0C1=9", "R1C8=7", "R1C2=2", "R1C4=4", "R8C8=5", "R6C7=2", "R0C3=7", "R0C5=3", "R0C8=4", "R7C3=2", "R3C8=3" ]
595
030090060005700394240806000000002950010500800082069010300910700007603100058004000
731495268865721394249836571674182953913547826582369417326918745497653182158274639
constraint_programming
[ "R2C4=3", "R7C8=2", "R3C8=3", "R0C0=7", "R4C2=3", "R3C3=1", "R8C4=7", "R1C4=2", "R7C4=5", "R1C1=6", "R3C2=4", "R4C5=7", "R8C3=2", "R7C0=4", "R7C7=8", "R8C7=3", "R0C6=2", "R6C8=5", "R2C7=7", "R2C6=5", "R0C8=8", "R5C8=7", "R0C2=1", "R8C6=6", "R0C3=4", "R3C4=8", "R6C5=8", "R5C3=3", "R4C0=9", "R5C0=5", "R0C5=5", "R1C0=8", "R8C8=9", "R8C0=1", "R4C7=2", "R3C0=6", "R2C8=1", "R4C4=4", "R2C2=9", "R6C2=6", "R5C6=4", "R7C1=9", "R6C1=2", "R4C8=6", "R1C5=1", "R6C7=4", "R3C1=7" ]
596
060700040000001900000280701070040030800067005904030008020009080508604010637015200
165793842782451963349286751276548139813967425954132678421379586598624317637815294
backtracking
[ "R1C1=8", "R5C6=6", "R1C7=6", "R2C5=6", "R6C2=1", "R6C4=7", "R0C0=1", "R3C0=2", "R6C3=3", "R7C1=9", "R2C1=4", "R2C7=5", "R1C2=2", "R2C0=3", "R1C8=3", "R3C8=9", "R4C3=9", "R0C4=9", "R2C2=9", "R7C6=3", "R6C0=4", "R6C6=5", "R8C7=9", "R8C3=8", "R5C5=2", "R4C6=4", "R5C7=7", "R4C7=2", "R0C6=8", "R0C5=3", "R5C1=5", "R8C8=4", "R4C1=1", "R7C4=2", "R3C2=6", "R1C0=7", "R0C2=5", "R7C8=7", "R5C3=1", "R3C6=1", "R3C5=8", "R1C3=4", "R0C8=2", "R4C2=3", "R1C4=5", "R3C3=5", "R6C8=6" ]
597
040098602000130040010027059067000030000009080502610004604200070308000001029075008
743598612295136847816427359967842135431759286582613794654281973378964521129375468
backtracking
[ "R6C6=9", "R2C0=8", "R3C4=4", "R3C8=5", "R4C6=2", "R3C0=9", "R8C6=4", "R2C2=6", "R4C1=3", "R2C3=4", "R0C3=5", "R4C4=5", "R3C5=2", "R0C7=1", "R4C0=4", "R5C1=8", "R8C7=6", "R1C0=2", "R0C0=7", "R8C0=1", "R7C3=9", "R1C2=5", "R4C8=6", "R1C1=9", "R6C4=8", "R0C2=3", "R1C6=8", "R7C4=6", "R5C5=3", "R1C5=6", "R3C3=8", "R7C6=5", "R1C8=7", "R5C6=7", "R4C3=7", "R2C6=3", "R6C8=3", "R7C1=7", "R7C5=4", "R5C7=9", "R6C1=5", "R7C7=2", "R4C2=1", "R6C5=1", "R8C3=3", "R3C6=1" ]
598
009802007010600040602170050067001204500003000830000960308050000100040023040009700
459832617713695842682174359967581234524963178831427965378256491196748523245319786
backtracking
[ "R5C5=7", "R7C3=7", "R8C8=6", "R1C0=7", "R0C0=4", "R6C3=2", "R2C8=9", "R5C2=1", "R3C0=9", "R8C0=2", "R8C3=3", "R0C1=5", "R8C7=8", "R6C5=6", "R8C4=1", "R4C2=4", "R1C4=9", "R4C4=6", "R7C1=9", "R7C2=6", "R7C5=8", "R4C3=9", "R0C7=1", "R2C1=8", "R3C3=5", "R0C4=3", "R5C8=5", "R6C6=4", "R4C8=8", "R6C7=9", "R1C8=2", "R5C4=2", "R1C5=5", "R5C3=4", "R8C2=5", "R1C6=8", "R7C6=5", "R6C8=1", "R2C6=3", "R4C1=2", "R3C4=8", "R0C6=6", "R2C5=4", "R3C7=3", "R4C6=1", "R4C7=7", "R1C2=3", "R6C1=7" ]
599
260935070051607049800002000703040002000000060000800157590000320006009008100724005
264935871351687249879412536713546982985271463642893157597168324426359718138724695
constraint_programming
[ "R2C6=5", "R7C3=3", "R2C3=4", "R6C4=6", "R8C7=9", "R6C5=8", "R2C8=6", "R5C0=6", "R4C2=5", "R8C6=6", "R8C1=3", "R8C2=8", "R6C2=7", "R4C8=3", "R4C1=8", "R5C4=9", "R7C6=7", "R2C4=1", "R0C2=4", "R5C2=2", "R4C5=1", "R1C0=3", "R3C1=1", "R4C4=7", "R0C8=1", "R6C8=4", "R3C7=8", "R5C1=4", "R2C1=7", "R3C6=9", "R2C7=3", "R0C6=8", "R2C2=9", "R3C5=6", "R7C7=1", "R4C6=4", "R4C0=9", "R7C4=5", "R6C3=1", "R3C3=5", "R7C0=4", "R4C3=2", "R5C5=3", "R1C6=2", "R1C4=8", "R7C1=2" ]