Dataset Viewer
source
string | question
string | answer
string | rating
int64 |
|---|---|---|---|
puzzles4_forum_hardest_1905
|
5...27..9..41......1..5.3...92.6.8...5......66..7..29.8...7...2.......8...9..36..
|
583427169974136528216859374792364851351298746648715293865971432137642985429583617
| 18 |
puzzles4_forum_hardest_1905
|
.2.1..9.4....2.6....3.94..5..497..5..1...24.7....4..6...6.............8..9..1.7.6
|
827165934459328671163794825384976152615832497972541368236487519741659283598213746
| 95 |
puzzles4_forum_hardest_1905
|
.7.4...1.5......42.....17...5.6...2...4..8...3...5...9.85..9..66..8......39.6.2..
|
873426915591387642426591738957614823264938157318752469185249376642873591739165284
| 27 |
puzzles4_forum_hardest_1905
|
.....4....4.37.1..7..61........5..8.4....73..1.9..3..5.7.2...196....12....2......
|
961584732845372196723619548237156984456897321189423675374265819698741253512938467
| 57 |
puzzles4_forum_hardest_1905
|
..5.89....6..57.8....6.....38........5...3..1..98...3.....4.2..1.87....4..65...7.
|
735189642462357189891624753384271965657493821219865437573948216128736594946512378
| 44 |
puzzles4_forum_hardest_1905
|
..8.63..1..4..2.8..1..4.5......7......3..9.7.7.....3.693...4...84.2...3...2......
|
278563491564192783319847562685371924423659178791428356936784215847215639152936847
| 8 |
puzzles4_forum_hardest_1905
|
79.....1.12...75....5.......4.8..1.5..7..4.9.........43...6......23...78..1..2.5.
|
798653412124987563635421987943876125517234896286195734379568241452319678861742359
| 11 |
puzzles4_forum_hardest_1905
|
8...6.....6...87.....4....8..3..7.25.2.....76......3...3...52..2...9..1.47.1..5..
|
817263954964518732352479168193647825528931476746852391631785249285394617479126583
| 13 |
puzzles1_unbiased
|
..8..23412........9......5.........4..3..89.7....53....6.3.1.7...7.4.8...5.8.9...
|
678592341235184796914736258182967534543218967796453182869321475327645819451879623
| 0 |
puzzles4_forum_hardest_1905
|
13...89....8......79.....8....6..4....3..9.7..5..2.8....1..7.9....5....6....4.2..
|
134768952528914367796352184819675423243189675657423819461237598382591746975846231
| 4 |
puzzles1_unbiased
|
.....5.......7.5..4..628....21.4.9.7.....2..879.3....4..2....7..7...38..63....4.2
|
917435286268179543453628791821546937346792158795381624182964375574213869639857412
| 3 |
puzzles1_unbiased
|
.56...2..3......9...........4....38....5......7243...1.2..68..9.6...5.2...931.65.
|
456891273317254896298673415945126387631587942872439561524768139163945728789312654
| 0 |
puzzles1_unbiased
|
8....3...5...2...14.96.57.....1..3.9.....4..2.5.93..6....2..6......5..7.76.3.....
|
817493526536728941429615738642187359973564812158932467385271694294856173761349285
| 4 |
puzzles1_unbiased
|
.7.2...3.6.............78....5..96...12.6..8....57.......6...9.8..725.434....3..2
|
578216439693458271124937856345189627712364985986572314237641598869725143451893762
| 0 |
puzzles1_unbiased
|
....3.4.2.18.9......47..8....64.2....29......5...8.....3.17..6.......19..5...8...
|
795836412218594376364721859876412935129653784543987621432179568687245193951368247
| 1 |
puzzles4_forum_hardest_1905
|
.41.8...7......8........14..3.8..7..2....3....76.1..8....5....69....4....67.3.4..
|
341985627792641835685327149439856712218793564576412983124578396953164278867239451
| 54 |
puzzles1_unbiased
|
4..........2.4.7.68.3..5.....5.719.....3..2....1.........9.68...36.1..2......4.13
|
417682395952143786863795142385271964649358271271469538124936857536817429798524613
| 5 |
puzzles1_unbiased
|
.52.....8...4.7.....8....6.4.5..69.......9.1..6...1.4..86....3...453..........29.
|
152693478693487152748125369415876923827349516369251847286914735974532681531768294
| 0 |
puzzles1_unbiased
|
4.....8....3.2467..56.7.......1...3.3...8..1...9.37........8..1.2.4..3.7.4.....9.
|
497316852183524679256879143872145936364982715519637284635798421928451367741263598
| 4 |
puzzles0_kaggle
|
6..15.4...4269...3......8...6...57...738....5..1.26.4985..4.92...92671..1.7....3.
|
698153472742698513315472896264935781973814265581726349856341927439267158127589634
| 0 |
puzzles5_forum_hardest_1905_11+
|
...4..97..97..6..12......6..75..1.9.....8..........1.5.2......9.51..96......3....
|
536418972897326451214957368375241896149685237682793145723164589451879623968532714
| 16 |
puzzles4_forum_hardest_1905
|
..43.......7...8...2..76..429.4............1...6.97..2.6...3..........5.4...29..6
|
514382697637945821829176534298431765375268419146597382961753248782614953453829176
| 18 |
puzzles4_forum_hardest_1905
|
..5.....49....3.2.....7.....9...21..3.....2.....38..9.16...9.8.2....861....6.....
|
835126974976843521421975863597462138318597246642381795163259487254738619789614352
| 58 |
puzzles4_forum_hardest_1905
|
..9...2...84..1...6..9...84....5.....9.8...36.......2...86...43....7....36....9..
|
759438261284761359613925784146253897592847136837196425978612543425379618361584972
| 40 |
puzzles4_forum_hardest_1905
|
.1..2.....84..1..76..4.81..9.6..2..........3..4.8.96....19.64......8...........5.
|
315627894284591367697438125976312548852764931143859672521976483439285716768143259
| 22 |
puzzles4_forum_hardest_1905
|
.2...........3.9....4..7..1..1..8..65......8..485.6..748...17....76......1......4
|
129845673675132948834967521791328456563479182248516397486291735357684219912753864
| 75 |
puzzles4_forum_hardest_1905
|
.6.4..5.........9.3...1.....4.2..7....7.....8.287..6...5...4.6......24.....6...75
|
869423517214857396375916842143268759697345128528791634752184963936572481481639275
| 23 |
puzzles4_forum_hardest_1905
|
.7..63..1..39.1.2...15...........4..1...97..6.6.......79...5........68....6.3...7
|
279863541653941728481572963327618495145297386968354172792185634534726819816439257
| 32 |
puzzles4_forum_hardest_1905
|
.8..432....5.8...4...7....8.2..94..3....7.92.6..............3..1..3......3..29.8.
|
781643259265981734943752618527194863314876925698235471852417396179368542436529187
| 49 |
puzzles4_forum_hardest_1905
|
2...8.....3....7.81....3.2..1..2..7....3....5.7..15.3.......9...2..3..8...46.....
|
245781396936254718187963524513426879862397145479815632758142963621539487394678251
| 105 |
puzzles4_forum_hardest_1905
|
.5..8......41..9..1....9.2...83..7...7...4..9.....2.1..9.6...5...3.4...66....83..
|
259483671784126935136579428918365742372814569465792813897631254523947186641258397
| 7 |
puzzles4_forum_hardest_1905
|
...6....82..4..6......13..9.....9.....52...8..1..7...2.7......35.4...2..6.....85.
|
149625738283497615756813429327589146965241387418376592872154963534968271691732854
| 25 |
puzzles4_forum_hardest_1905
|
.9.....6...8...5.33.2.....4..4.5...8.7.1.9....2..4.........7..9...6...1.2...8.3..
|
497315862618472593352968174134756928875129436926843751541237689783694215269581347
| 11 |
puzzles4_forum_hardest_1905
|
1....82.....9...65....5....3....21.....7...4...9.6..7..31..4..8.42...3..8........
|
165348297423917865798256431374592186516783942289461573931624758642875319857139624
| 15 |
01_file1
|
.8...1.655.6......1.....3....5..8.418...2.....4.5.7.........9.....7...3.4....5.18
|
389271465526349187174856329765938241893124576241567893617483952958712634432695718
| 66 |
puzzles4_forum_hardest_1905
|
.......28..8..45.3......7.49..6.......3..7..2.5..1.....6..5....1..9.......7..34..
|
416735928728194563539826714971682345683547192254319687362451879145978236897263451
| 51 |
puzzles1_unbiased
|
6.3...1.8.......45...........68..5...24......1..9.....9.1.3...4...4.7.1..5.1.92.7
|
643725198287691345519384762796843521824516973135972486971238654362457819458169237
| 0 |
puzzles1_unbiased
|
2..46...5........7......682.4.1.83..73.....2....6.....5...7.....2.3...91...9.4...
|
287461935963285147154793682645128379731549826892637514519872463428356791376914258
| 1 |
puzzles1_unbiased
|
.67.52..8..813.....3......1.76.4.1..9.....8..3.....7.2....7.....1.....7...28.6..4
|
167952438298134567435687921576248193924713856381569742649371285813425679752896314
| 0 |
puzzles4_forum_hardest_1905
|
...6..58.5....1..7.89..521.8...1..2..7...38....28..7...4.......2...781.....3.....
|
321697584564281937789435216893716425475923861612854793947162358236578149158349672
| 13 |
01_file1
|
.1..5...78..3......74.1.3.......95....2....6..4..6...14.6.7.15.1.7.....6.5.......
|
213958647869347215574216398681439572792185463345762981426873159137594826958621734
| 58 |
puzzles1_unbiased
|
...73.....69.....8..7..1.2.7.2..9......14.9..4..827...8.......6.5....3......7.84.
|
528736419169254738347981625712369584683145972495827163871493256254618397936572841
| 5 |
01_file1
|
..........54..6.8223.58.....6.71..5.3....42...8.....4...6....25.4....86.......4.3
|
618427539754936182239581674462713958375894216981652347196348725543279861827165493
| 26 |
01_file1
|
.......971.....6...7..8.5..6..5......978.....5....71.9..6....1..1834...59.......8
|
865132497139475682274689531621594873497813256583267149356928714718346925942751368
| 21 |
01_file1
|
.......98......7...8...56.4.9.......6...8.4.97.46..5....7.5..4.8.51.2..69.......5
|
576431298419268753382795614298514367651387429734629581167953842845172936923846175
| 22 |
01_file1
|
......4.....19.6.......2.9.3.95.12.7.2..7.......3..95.9.7....3.51...3.....2..71.9
|
296735481453198672178462593389541267625879314741326958967214835514983726832657149
| 32 |
01_file1
|
......6...2.4...1.7.8..35....2.3...5...21.4.....6.5....5..463.23...2.14.........6
|
543172698629458713718963524162734985835219467497685231951846372386527149274391856
| 9 |
01_file1
|
......9.8.....3.4...2.8..5....89.....8..25.395....4...7.123...5.2.4..3.......9..2
|
367542918158973246492186753273891564684725139519364827741238695926457381835619472
| 30 |
01_file1
|
.....6.5.5.673.1..17.8.....3.1.6.58..8....6......8..379......1.2..3.1.......5....
|
839416752526739148174825396391267584487593621652184937943678215265341879718952463
| 20 |
01_file1
|
....4...5.6...5.....3.7......8..9....3926....25......6.2..3..68.85...9.3.....852.
|
892341675764895312513672489678159234439267851251483796927534168185726943346918527
| 36 |
01_file1
|
....5..6.1......8...7...5.....2..4....27...15..4.13....25.7....3.1..4..247....35.
|
243857961159436287687921534716285493832749615594613728925378146361594872478162359
| 39 |
01_file1
|
....69...6..2..3....84.......43...2.96.........289...683..2.71...9.3.....4...8..3
|
423769185675281349198453672584316927967542831312897456836925714759134268241678593
| 34 |
01_file1
|
....8.6.7.8756..944....9.....49....556.87.....79...8......57..1........3...4..7..
|
395184627287563194416729538824916375563872419179345862638257941741698253952431786
| 18 |
01_file1
|
....81.2..869.27.....6......287....96.7......91.......8...1.9....9..6.....2..7.45
|
794381526586942731231675498428753619657129384913468257875214963149536872362897145
| 51 |
01_file1
|
...3.6..8.6..41...3.482..1....2.49......6.....4....7..82..3......1.....3..6.1.24.
|
172396458968541372354827619783254961215769834649183725827435196491672583536918247
| 28 |
01_file1
|
...7..5.4....5.28........177....1..2...4......695.78..5..8..42..841.2.7..........
|
326718594417359286895264317743681952258493761169527843531876429984132675672945138
| 4 |
01_file1
|
...7.6.8.....58.1.....4...74...8.15.8.....7.6..761..4.39.4..8....8..15.........6.
|
132796485974258613586143927469387152813524796257619348395462871628971534741835269
| 44 |
01_file1
|
...9...76.69.8.12.1.....8.....21..8..72..9.6.8....6.....47.....7......9...3...2..
|
248931576369587124157462839936214785472859361815376942524793618781625493693148257
| 8 |
01_file1
|
..1..4...86...54.....26.1...7..8.....9.....6...8...5......5.8.44..1.862...2....15
|
231894756867315492945267183673589241594721368128643579716952834459138627382476915
| 6 |
01_file1
|
..28..7..5..9.....7...21...1...7.....9...5...2...8.63.95.....8.8.751...2..1....7.
|
462853791513947268789621354146379825398265417275184639954732186837516942621498573
| 45 |
01_file1
|
..4....1.2.....78.7.....3.482.31....1.7..4.2...3.......8...72..3.......74..96...1
|
594783612236491785718625394825319476167854923943276158681537249359142867472968531
| 28 |
01_file1
|
..4.69.2....8.4......23....8.........3.9..2..42...6.5139..2...66...984....8......
|
754169823263854719981237645875312964136945278429786351397421586612598437548673192
| 54 |
01_file1
|
..9.5.4.3..89....745.......37.6.19...8..7..3...4............54...3....785....7..9
|
769258413238914657451763892375681924986472135124539786897326541643195278512847369
| 25 |
01_file1
|
..95.6..8...84........91....9......4.6....51.8..4.5.6.....5.1...326..98....9...4.
|
419536278753842691628791453395167824264389517871425369947258136132674985586913742
| 10 |
01_file1
|
.1......58.2.5...6...81.27..781.6...5..72..1......56....9...8....42......8..6....
|
713692485892457136465813279378146952546729318921385647239571864654238791187964523
| 36 |
01_file1
|
.1.....75....516.46....7.3...7.46..1...7..3..54.31.....5...3...8...6....9.....5..
|
214639875738251694695487132387946251169725348542318967451893726873562419926174583
| 60 |
01_file1
|
.1..2...74.53...8....1...6......7......86..1...12.38........6...8.6.213.3......72
|
619528347475396281823174569538917426294865713761243895142739658987652134356481972
| 30 |
01_file1
|
.14.87............3..5.14.8.96..31..5...7..8......45.......534......8.57...3....1
|
614287935958436712327591468796853124542179683831624579289715346163948257475362891
| 30 |
01_file1
|
.2....3...9....8..6.......5.7......494..5.62.5.26.....75.9.4.......25..7...76.9..
|
427586391195473862638219475876392514943157628512648739751934286369825147284761953
| 33 |
01_file1
|
.2.34.........5.7....8.72.478.5.3....524..8.3..4....5......81...3....6.....2...3.
|
127349586468125379593867214786593421952471863314682957675938142231754698849216735
| 12 |
01_file1
|
.4......39.....7..8.....2..3.745.1.2.1....5.......3.742..3.........124.5.5.74....
|
145627983962834751873591246387456192416279538529183674294365817738912465651748329
| 10 |
01_file1
|
.4....1...9....6..8.......232..54......92...39..8.34..45.2..89..3......52....8...
|
742365189593182647861749532327654918684921753915873426456237891138496275279518364
| 16 |
01_file1
|
.4..2......9........34.6...7.2.654...5...1......74...2....14.56.1....74...6.7.2.1
|
145329867689157324273486195732965418854231679961748532327814956518692743496573281
| 54 |
01_file1
|
.475.....1..6.....65..9.7.1.1......6..4.6..7..9.2.3..5.7....46..6.....199.....5..
|
847531692139627854652894731318975246524168973796243185271359468465782319983416527
| 13 |
01_file1
|
.5.96.8....2....56..8...19....1.29......562.....8....54.3.8..2..2...9.1.....2.6..
|
157964832932718456648235197584172963379456281261893745413687529726549318895321674
| 59 |
01_file1
|
.6....3.4.7.....963....6.2...96....7....512...4.......4.3.......97.2..6.62.3..47.
|
962875314574213896381496725259648137736951248148732659413567982897124563625389471
| 48 |
01_file1
|
.8...7.....45.......13........4..8.2.....217..27....94.4981.7..1.......8..27.9...
|
583927641764581239291346587915473862438692175627158394349815726176234958852769413
| 25 |
01_file1
|
.9.8.....7...19...4..27....87.4.19..2.47...8..1.....7...2.4.7..9....8.651........
|
395864127728519346461273859876451932234796581519382674682945713947138265153627498
| 54 |
01_file1
|
1..3........5..87..9...6..35.316...2.21...3..96....5..6...93...3..2.1.....2.5....
|
147389256236514879895726143583167492721945368964832517618493725359271684472658931
| 28 |
01_file1
|
1..5.7.6.....9.....7964...17....5..4..49.......61..23.9.1.......5........67.1.4..
|
143587962685291743279643581712365894534928617896174235921456378458739126367812459
| 36 |
01_file1
|
1.7..4...24.97.1...93...4.....8........5...97.....72...2......17..21.93....7.3.4.
|
157634829246978153893152476572896314438521697619347285325489761764215938981763542
| 55 |
01_file1
|
2..5.31......723.4..314....9......42..4...5..8.............5.1.51.4..2.74.7.....3
|
248563179195872364673149825951387642734621598826954731382795416519436287467218953
| 33 |
01_file1
|
3...........9..7...19...2...8....96...43.....16....3.44..8.31.9.....4.8.89.16....
|
372415698648932751519678243283741965954326817167589324426853179731294586895167432
| 30 |
01_file1
|
3..79........2439..4.1..7..2......3......19...1793.42.9.....1...6.....7..5.....4.
|
382795614175624398649183752298476531436251987517938426923847165864519273751362849
| 10 |
01_file1
|
3..9.52.77......49....7.35....8......591.....2...5....53......29.42.35....7.4....
|
341985267765321849892674351473869125659132784218457693536798412984213576127546938
| 5 |
01_file1
|
4..8.........95....9.7..1..7..45...9.5.....1.8.4....7.5...1......8..4...9.1.7.23.
|
435861927187295346692743185713452869259687413864139572526318794378924651941576238
| 21 |
01_file1
|
4.1..37.....1.2.64.2....3..5..4.....8.......1.1...7...16.2.........3...77.36.4.2.
|
481563792375192864926748315537419286894326571612857943169275438248931657753684129
| 25 |
01_file1
|
59...1..7.....3..4...8..2.......43.1.......8.4...1..72.7.2.8.....1.47.23.4..3....
|
598421637712653894634879215926784351157392486483516972375268149861947523249135768
| 35 |
01_file1
|
6.4.......9...7.4.71....8....9.524.7......6..8..7....1.......6..864..9...7..9.1.8
|
624385719598617342713924856369152487157849623842763591931578264286431975475296138
| 51 |
01_file1
|
63...2....24..8.....5.6....5.....7.1.8.4...2......3......63...2..28.4..53.8.25.6.
|
637542198924318657815769234593286741786451923241973586459637812162894375378125469
| 59 |
01_file1
|
7...54......8.7.....561....4...7.....8...1..75...6.39.81....64.6.71....5..4......
|
768954132143827956295613874429378561386591427571462398812735649637149285954286713
| 44 |
01_file1
|
9......2....5.9.7.....8......145.3.....1.8.948....3...5.4.1.....3......1.8..3.95.
|
978341526412569873365287149691452387253178694847693215524916738739825461186734952
| 33 |
01_file1
|
....912.7.7.8..15..2..5..98.....9..2...5...1...4..8..964............7.8.7...2...5
|
485391267973862154126754398517649832892573416364218579641985723259437681738126945
| 28 |
01_file1
|
...9....6.....3.2...1..2.7.51.3........7...4.4....63....6..429..4.69...7.3.2.7...
|
723915486694873125851462973519348762362759841487126359176534298248691537935287614
| 31 |
01_file1
|
.14.8.73...8......63.1.7..4..3.4....8..3.146.1.......7...2......76...2........9.6
|
914685732758423691632197584563749128827351469149862357495276813376918245281534976
| 22 |
01_file1
|
4......7..5.7..8.....2.9.5.5.3..7..464...8....78...63..6..9..4..8.....6.3.......5
|
432865179956741823817239456593617284641328597278954631765192348184573962329486715
| 35 |
01_file1
|
5...9.1.61.3..5.92.6..2..3...1.....9.5....3....6..7..1...87......2...6..9..2....5
|
527398146143765892869124537781532469254619378396487251615873924472951683938246715
| 28 |
01_file1
|
6..4.3..18..51......4.6835...7.5.1.....3....4....8.5..72..........1..6...6..4..8.
|
659473821832519746174268359297654138518327964346981572723896415485132697961745283
| 10 |
01_file1
|
6.5....4.7...9.68..8..4.7.5..8..1.6...6....9..7....5....4...8..9..4...7....21.9..
|
635187249741592683289643715598321467126754398473869521314976852952438176867215934
| 24 |
puzzles1_unbiased
|
......79.7....6..21.........8.....34.541..2......2.5.8.7.4.5..6...6...7..2.8.93..
|
863241795745396182192758643281567934954183267637924518379415826518632479426879351
| 1 |
End of preview. Expand
in Data Studio
Hardest Sudoku Puzzle Dataset V2
This dataset contains a mixture of easy and very hard Sudoku puzzles collected from the Sudoku community.
Dataset Composition
Sources
Easy Puzzles (1.1M)
- puzzles0_kaggle
- puzzles1_unbiased
- puzzles2_17_clue
Hard Puzzles (3.1M)
- puzzles3_magictour_top1465
- puzzles4_forum_hardest_1905
- puzzles6_forum_hardest_1106
- ph_2010/01_file1.txt
Dataset Characteristics
- All puzzles have been exact-deduped and randomly permuted by row, column, box, and digit.
- Each puzzle is guaranteed to have a unique solution.
- Puzzles in the train set are mathematically inequivalent to those in the test set.
Dataset Structure
- Train set:
train.csv(3.8M examples) - Test set:
test.csv(423k examples)
Puzzles and solutions are flattened in row-major order. Rating is evaluated by number of backtracks needed by tdoku solver required to solve the puzzle (higher is harder).
Usage Guidelines
- Train models using only the train set.
- Evaluate models on the test set using exact accuracy (all numbers must be correct).
- Downloads last month
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