source
				 
			string  | question
				 
			string  | answer
				 
			string  | rating
				 
			int64  | 
|---|---|---|---|
	puzzles4_forum_hardest_1905 
 | 
	..198.3...4...6..93........7.5...8....485...3......54...954..3.1..6..4.....1.2... 
 | 
	521987364847326159396415728735294816264851973918763542679548231152639487483172695 
 | 90 
							 | 
					
	puzzles1_unbiased 
 | 
	.2.84....7...31.....37.........9.3.5..25..7.8....8.1....4.2.....914...52..76.9... 
 | 
	129845637765931284843762591418297365932516748576384129354128976691473852287659413 
 | 4 
							 | 
					
	puzzles1_unbiased 
 | 
	1..94..6.8...6.......5.....2..7..8......21.56..8...9....7....1.6.5..3..9.2..7.54. 
 | 
	173948265852367194496512387264795831739821456518436972987254613645183729321679548 
 | 1 
							 | 
					
	puzzles1_unbiased 
 | 
	.....79.......2...8.6..934..85....6..2.7...5..1...47..23..9..1.......6.....415... 
 | 
	152347986394862175876159342785921463429736851613584729237698514541273698968415237 
 | 2 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	.94..3.6.8..6....9.56...1...8.9....4....3.7....5..2.1..6...7......3..2....84....5 
 | 
	194253867823671549756894132287916354941538726635742918562187493479365281318429675 
 | 26 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	.8...37..6..7.......1.4...2..8..7.2.5..8.9..4.1..3.8....5..1.67.9.3..4.........9. 
 | 
	289153746654792183371648952938467521527819634416235879845921367792386415163574298 
 | 20 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	..6..1..85...7..61......3...4.2.......9..3.5.8...9.6....3....8..2.4....69...6.7.. 
 | 
	396521478582374961174986325647258193219643857835197642463715289728439516951862734 
 | 23 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	8..63...7.....5.6..96.4....2.........39.8.....87..2..3...1..54..1...4...9...2...8 
 | 
	851639427423875961796241835245913786139786254687452193372168549518394672964527318 
 | 18 
							 | 
					
	puzzles1_unbiased 
 | 
	.....465..436.1.......9........3.4.......21..9..5....21...693..4.672.....3..1...9 
 | 
	279384651843651927615297843527138496364972185981546732152869374496723518738415269 
 | 2 
							 | 
					
	01_file1 
 | 
	6..7....8.....26...916.5....8....54...7...8.6...4...72.....4..7....7.2.5..625.48. 
 | 
	632741958758392614491685723283167549147529836569438172825914367314876295976253481 
 | 12 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	.3...5..71.....6....74...8...35....2.9...2.3.2...6.9....8..7.2..1.9....4....5.3.. 
 | 
	436285197182379645957416283863591472591742836274863951648137529315928764729654318 
 | 24 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	4..9...8..3...65....8.......1.....3.7....1.65...7..1...4.2.....1.9.4...2.5...73.. 
 | 
	476915283231486597598372416915624738724831965683759124347298651169543872852167349 
 | 26 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	9..7.5..........5...7.3.2....3.1.7..8..6.93...6......8.....74......4..31..43....2 
 | 
	942765183318294657657831249493518726825679314761423598239187465576942831184356972 
 | 9 
							 | 
					
	puzzles1_unbiased 
 | 
	..3...94........7..415.8....8...2.1..2......9..97...8.6..9.72....2.1....8...6.1.7 
 | 
	573126948268439571941578326387692415426851739159743682614987253792315864835264197 
 | 0 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	...28...72....4.3...9.3.2..4...2..8..5...1......4..6...9....7....5....161..3...2. 
 | 
	543289167286714935719536248467923581852671394931458672698142753325897416174365829 
 | 33 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	....49.3...3.6...17..2..4......2..8..8..1...94..5..7...7....6...546.....6....2... 
 | 
	526149837843765291791238456165927384287314569439586712372891645954673128618452973 
 | 8 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	.5.6.2...7...5......1....2.8.......31....94...2..7..6..1..2..7......3..9...4..8.. 
 | 
	958642137742351698631987524895264713167539482324178965419825376586713249273496851 
 | 3 
							 | 
					
	puzzles1_unbiased 
 | 
	.4..3.........621......5.3..2.8..9....8.7...1.1...48.2..6...4.8.59.......824..3.. 
 | 
	947132586835746219261985734624851973598273641713694852376519428459328167182467395 
 | 1 
							 | 
					
	puzzles1_unbiased 
 | 
	..39.2....2.76..94...........2....79.3.8...6.76.5....8....9.8.23.4..6..........45 
 | 
	143952786825763194976148253582614379439827561761539428617495832354286917298371645 
 | 1 
							 | 
					
	01_file1 
 | 
	..8..6.252.....7....5.8.36...2.....6.8.4.1....3..6..7.6......37.5.....8...3...5.2 
 | 
	378196425269543718145287369492738156786451293531962874624815937957324681813679542 
 | 49 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	...6...1..4...53....873...4.7.5..1..2......9...1..7..89......2...7..6..1.1.3..6.. 
 | 
	735649812149285367628731954873592146264813795591467238986174523357926481412358679 
 | 3 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	2..7...5..5..42..9..3...2.....6......3..285....1.....83...8.4....8..79...9..54.8. 
 | 
	249761853856342179173895264584619732637428591921573648315986427468237915792154386 
 | 8 
							 | 
					
	puzzles2_17_clue 
 | 
	..2.....3....6..148....9...............53.....6.....9...5......3.47...........16. 
 | 
	192475683537862914846319752258694371971538246463127598625981437314756829789243165 
 | 0 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	61.......4...851....51...4...4..89..8..9...7..9..3...2...76...32.....7....7..2.5. 
 | 
	619247385472385196385196247524678931863921574791534862158769423246853719937412658 
 | 7 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	........1....8....3..2.4.6...67.2.3.2...5.....3.96.4..6.7...9...2.4...7.4.......6 
 | 
	842639751769185342315274869986742135274351698531968427657823914128496573493517286 
 | 80 
							 | 
					
	puzzles1_unbiased 
 | 
	...4..3..7.....5....9.6..17........4.28.....35.....97.........8.465..1.....143... 
 | 
	281457396763891542459362817617935284928714653534286971175629438346578129892143765 
 | 1 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	..82..3..79.......6...7......75....3.....4.1..6....25.9....81....51...3..1..4...8 
 | 
	148259376793416582652873491287591643539624817461387259924738165875162934316945728 
 | 11 
							 | 
					
	puzzles1_unbiased 
 | 
	.4........5.2.43..3.95.......6...4.3....7.51.....1.6..9.2...85..8..5..49.15.....7 
 | 
	241736985758294361369581724176825493894673512523419678932147856687352149415968237 
 | 1 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	...1.....97..3..1.......6.3.34...5..........282.7...3...739......287....38...1.7. 
 | 
	463159728978236415251487693134928567795613842826745931547392186612874359389561274 
 | 107 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	..5.8..6..4...3..91................7.2.7..93......942.3..6......7...4..22...5.1.. 
 | 
	795482361648173259132965748953246817426718935817539426389621574571394682264857193 
 | 35 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	.5.....4...15....96.9......1...3......2.4.8...6...5..1...4...7..4.7.9..5.1...69.. 
 | 
	753962148481573269629184537198237456572641893364895721935418672846729315217356984 
 | 52 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	2..4....1....9.6.......8........5...3..18.5.4.5..6.19..3.7...1.7.....4...12.....7 
 | 
	298436751573291648641578239127945386369182574854367192936724815785619423412853967 
 | 15 
							 | 
					
	01_file1 
 | 
	..7..4.1..3......2....2.....2...8.4...6297..58....1....7......1...4...7.1...8.2.. 
 | 
	297854613634179582581326794729538146416297835853641927378962451962415378145783269 
 | 7 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	5.......8..6.4..9...4..965...54...6..1..6.....6...32.....9..5....3..498....83.7.. 
 | 
	539612478286547193174389652325491867917268345468753219842976531753124986691835724 
 | 8 
							 | 
					
	01_file1 
 | 
	....5.....513..98.9.78.1..31....78.........4....9...6..78......5.9.8.71.3....5.9. 
 | 
	483259671251376984967841523142637859796518342835924167678192435529483716314765298 
 | 19 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	.2....5..1...4..6.6...59.7..71.3.4....6....3.3....4..7..9..3..8.....57..7...1..4. 
 | 
	924761583157348962638259174871632459246597831395184627569473218413825796782916345 
 | 42 
							 | 
					
	01_file1 
 | 
	....247....45..82...5.....1....3........6..17..1.......2.8..45..57.....84.8..1..2 
 | 
	819324765764519823235786941976135284342968517581472639123897456657243198498651372 
 | 12 
							 | 
					
	01_file1 
 | 
	....4......6..1.2..2.8..5..6..2...48....16...5.24..1..3.9.5..1......8..6....2..5. 
 | 
	795342681836571924421869573613295748984716235572483169349657812257138496168924357 
 | 20 
							 | 
					
	01_file1 
 | 
	..5.6.1....6..5.833..1.....5....86.........2..9.6.....1.....3..6....15.....74...1 
 | 
	945863172716425983382179456537298614461537829298614735174952368629381547853746291 
 | 24 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	28...1...1...4...8..43......7.....6....9..8....2..6..3..8..3..15.6..43.2....5.6.. 
 | 
	283561947165749238794328516379285164641937825852416793928673451516894372437152689 
 | 32 
							 | 
					
	01_file1 
 | 
	..8..2.5.......3.6.5.9...2..7..8...5...7.9....91.2....5.91.....78........12.578.. 
 | 
	968312457124875396357964128273481965645739281891526743539148672786293514412657839 
 | 6 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	.5.....3...1..5..66..48..5..1...9..8.......7...8.2..911....2..5.25.4......95..7.. 
 | 
	852196437471235986693487152217369548946851273538724691184972365725643819369518724 
 | 10 
							 | 
					
	01_file1 
 | 
	..2....7..916.....87....9.6.8..2..9.7..8....2.2.3.4.6........19.1...26..96....8.. 
 | 
	652489173491673285873251946386527491749816352125394768234768519518942637967135824 
 | 36 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	...8..5.9..5....8..8...54.17...2.....4.5...1...6..13...6.9...4.2....7..6..3.6.... 
 | 
	674813529315294687982675431731429865849536712526781394167958243298347156453162978 
 | 20 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	....81..7.2..69.1...85..9..4...1...3..6..51...1.....7...9.5.8...4.........1.967.. 
 | 
	964281357725369418138547926457918263396725184812634579679153842543872691281496735 
 | 19 
							 | 
					
	puzzles1_unbiased 
 | 
	..2.....949...267...7..5..3.2........5..2..688...53......4915.....5.......4...8.7 
 | 
	382617459495382671167945283721869345953124768846753912278491536639578124514236897 
 | 1 
							 | 
					
	puzzles1_unbiased 
 | 
	........13.98..4.5..63.4.2...2.3....93...2...8..9.7..........6..4...9.57...2..38. 
 | 
	428795631319826475576314829152438796937162548864957213781543962243689157695271384 
 | 0 
							 | 
					
	puzzles0_kaggle 
 | 
	..8..4.......983.66241..5.97.3.29.5..5..7.2..41.8...7..8.7.3...23.5.61.81.....6.. 
 | 
	398654712571298346624137589763429851859371264412865973986713425237546198145982637 
 | 0 
							 | 
					
	01_file1 
 | 
	....1...2.....8..31..7......67....98...6..1.79.1.8....47...6.....9...4..6.8.49.71 
 | 
	896315742742968513135724986567431298384692157921587634473156829219873465658249371 
 | 9 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	.5....8.38.1..2.9..6.8...5....7.........6....5.6..9.2...2..49.54.59..1.2.......4. 
 | 
	257496813841352796963871254128745639794263581536189427382614975475938162619527348 
 | 13 
							 | 
					
	01_file1 
 | 
	...4....9.....82...635..8......4.9.8...7.9.2.5...2..7.....8.5.4.7495......52..79. 
 | 
	758462139491378256263591847327145968816739425549826371932687514174953682685214793 
 | 5 
							 | 
					
	puzzles1_unbiased 
 | 
	..398...264.7...9..........5..6.....82...7..4......85328..617...7...95..........1 
 | 
	713985462648732195952146378534618927829357614167294853285461739371829546496573281 
 | 4 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	..5..4..83.9..8..2.8..9.6..1.....23..9.........2..7..5.....2.8...74..52.....7...4 
 | 
	725364918369718452481295673178546239594123867632987145943652781817439526256871394 
 | 18 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	2.9..4..1.8.2...4.....6....9....5.1.....2.4.91..3..5.2....7..2.4.5...1...2....... 
 | 
	239754681586219743714863295972645318653128479148397562391576824465982137827431956 
 | 9 
							 | 
					
	01_file1 
 | 
	...2.63...9...52......7..4...1.....74......8..6.3..5...56..9...1...8......26..... 
 | 
	574216398698435271213978645931852467425761983867394512756129834149583726382647159 
 | 30 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	8..1.......3.5.2...9...3.7.1..2...3..3...61....7.....4.8..6......48....53....7.9. 
 | 
	875192463613754289492683571146275938538946127927318654789561342264839715351427896 
 | 16 
							 | 
					
	01_file1 
 | 
	..1.85...........4.862.......27......9..5.4.88.54..27.......54.2....78.9.58..9... 
 | 
	431985627527361984986274351642738195793152468815496273179823546264517839358649712 
 | 25 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	.429..16..1.4...5...5.2...........4..9...45.1...5..6.9.7.6...1...8..7...3...4.7.. 
 | 
	842953167913476852765821934581769243697234581234518679479682315158397426326145798 
 | 18 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	...1......9......36.4..35..2..5...7.....8..5.3....7..4.2..4....95....4.64.6..5.3. 
 | 
	532168749891754623674923581249536178167489352385217964723641895958372416416895237 
 | 22 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	......9....39.1.6.79......1..13.65..4...8.........4....2..5..3...56.3..9......65. 
 | 
	154867923283941765796235841971326584432589176568714392629158437845673219317492658 
 | 52 
							 | 
					
	01_file1 
 | 
	.6.4.....9...3....48....71.35..6..9..9.8.5.....6.....4...58........49.....86.394. 
 | 
	261457389975138462483926715352764198794815623816392574649581237137249856528673941 
 | 25 
							 | 
					
	puzzles1_unbiased 
 | 
	.3.4..58.....2.........74.....9..8.4.9...5.377.8.........3...1..25.1......95..2.. 
 | 
	137496582546823791982157463263971854491285637758634129874362915625719348319548276 
 | 1 
							 | 
					
	01_file1 
 | 
	...53.7.4...7.63......48....4..53..756...7.3....68......78...6..2....5..1.....4.. 
 | 
	691532784284796351375148926849253617562417839713689245957824163426371598138965472 
 | 16 
							 | 
					
	01_file1 
 | 
	9............3..75....152..1..39........7.1...375....2.9..2..1..1.7..9.4.2......6 
 | 
	956287341281934675374615289142398567569472138837561492495826713618753924723149856 
 | 38 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	.....927...9.........83...916.........71.8.42..8..3..7....5....4..9.......3..2..8 
 | 
	584619273739245681216837459162794835357168942948523167821356794475981326693472518 
 | 42 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	6.....1......89..55..1..39..26.314..4...26.....54.....1..2..5....7..............3 
 | 
	639752184741389625582164397926531478473826951815497236168273549397645812254918763 
 | 16 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	8...9.....3.8..6....5..1..7..9..4..8.1.3..2......7..4.6.25...1.1.3..25...5......2 
 | 
	864793125731825694295461837329614758417358269586279341642587913173942586958136472 
 | 5 
							 | 
					
	01_file1 
 | 
	4...7.2...6.....8...9..16...3.5...2...7..4...1...9.........3.5......9..8.5.8..3.. 
 | 
	418675293765932481329481675634518927597324816182796534876243159243159768951867342 
 | 40 
							 | 
					
	01_file1 
 | 
	6...9.7....56...2..........3..9.6..4....4.....4.7.36..9...3...7...4...814..86.3.. 
 | 
	614298735735614829289375146357986214896142573142753698928531467563427981471869352 
 | 29 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	2..5...4.....2.6....5..1..29..8....6.7..3.5....1..2.9..3..7....8.....2....9..4.6. 
 | 
	267583149418927635395641872943815726672439581581762493136278954854396217729154368 
 | 5 
							 | 
					
	01_file1 
 | 
	9.5.2...82...3...9...5...4...8.7....7.....3...928....7.19...........6...8...9...3 
 | 
	945627138286431579137589246468273915751964382392815467619358724523746891874192653 
 | 27 
							 | 
					
	01_file1 
 | 
	...9.2......5..8.2.25.8.........9..7.63..71..7..2..5...127...9.8..1...5......82.1 
 | 
	638972415497561832125483976254619387963857124781234569312745698849126753576398241 
 | 15 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	9....7....5...2.....61...8.7...2...3.3.....6...43..8....14....8.9....43.....5.61. 
 | 
	948567321157832946326149587789624153235981764614375892561493278892716435473258619 
 | 15 
							 | 
					
	puzzles1_unbiased 
 | 
	....6..87..91..3...6...81.441....5..........3..6....18.4..5....93..82.5.....76... 
 | 
	154263987289147365763598124412839576875614293396725418648951732937482651521376849 
 | 1 
							 | 
					
	01_file1 
 | 
	7..1..6.55..8..79..9.5...81..9...8...6......7...2.4....18...9..6.5....1..7..1.5.. 
 | 
	782149635541836792396572481259761843164983257837254169418325976625497318973618524 
 | 21 
							 | 
					
	01_file1 
 | 
	6....5.14.5.14.......2..8..2..81...5..5...1......54..639..2.5...6...8.2.....6.4.. 
 | 
	632785914857149632419236857246813795985672143173954286391427568764598321528361479 
 | 49 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	......7...9..6...2..8..3.5..624......1...6.7.8...1...6...1.5.....1.9...89....43.. 
 | 
	634952781795861432128743659562478193419326875873519246287135964341697528956284317 
 | 34 
							 | 
					
	puzzles1_unbiased 
 | 
	8...9..4.....5.1....97.3..........5......43.2.87....6..7.2.....41.9....3...6..8.. 
 | 
	853192746762458139149763528234816957691574382587329461378241695416985273925637814 
 | 2 
							 | 
					
	01_file1 
 | 
	.7..6.15..2.7.5......4...2....6.....7.15..38.4....12.....2.....21..576..5.6.4.... 
 | 
	374862159128795463659413827932684571761529384485371296847236915213957648596148732 
 | 20 
							 | 
					
	01_file1 
 | 
	....97.4..7.3....9..15.4.376.......52......7...9..1......9.3.51........43.5.4..9. 
 | 
	536297148874316529921584637687432915213859476459671283742963851198725364365148792 
 | 26 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	.85.6..9.39............8.....2..9...9..6.4.2.....2...5..9.4..5....1.7.....4.9.76. 
 | 
	485261397391475286627938514542819673973654128168723945719346852256187439834592761 
 | 51 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	8..7..9.........18....6....2..1..8..7..9..2.1..3...75.......4...284.....4...97..2 
 | 
	864715923572349618319268547245173896786954231193682754637521489928436175451897362 
 | 10 
							 | 
					
	puzzles0_kaggle 
 | 
	...4...59..163...73.8.9....87....6....2..9..4..412.7..2..5.3.6164..1.8..9..7..4.3 
 | 
	726481359491635287358297146879354612162879534534126798287543961643912875915768423 
 | 0 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	..2..7..13.7..5..2.6.9.........4.1....47.1..58..5..4.......325....17...3..3...... 
 | 
	942367581387415692165928734536249178294781365871536429418693257659172843723854916 
 | 40 
							 | 
					
	01_file1 
 | 
	....41..68..56..4....8.7.51.6417..857..4.........564...3.....7852.....1.......... 
 | 
	275941836891563742643827951364179285759482163182356497936214578527698314418735629 
 | 13 
							 | 
					
	puzzles1_unbiased 
 | 
	4..1...5....2.83.6...5.3....8.4...1..9.6..........957..1.8...65.4....2..6.7.1..8. 
 | 
	432176958571298346968543127385427619794651832126389574219834765843765291657912483 
 | 0 
							 | 
					
	01_file1 
 | 
	.5...1....7....29.4..3....1.3165.4...4...7..6..74......6..34..53..16.......7.5... 
 | 
	253971684176548293489326751831652479542897136697413528768234915325169847914785362 
 | 41 
							 | 
					
	01_file1 
 | 
	.735.2.949..43.........9..27..........6....5...8..7....4532.7.....7.4.353.....2.. 
 | 
	873512694921436578564879312752198463196243857438657921645321789289764135317985246 
 | 16 
							 | 
					
	puzzles1_unbiased 
 | 
	......4....6.39.1..5..6...85.1.23..7........5..7.8.1..9.5..2.46..36......2..1...9 
 | 
	192758463786439512354261978541923687869147235237586194915872346473695821628314759 
 | 1 
							 | 
					
	01_file1 
 | 
	..95.....1...28..682..6...92...9...1.4.1..........73......1.69.6..8..21.........8 
 | 
	769541823153928746824763159275396481346182975981457362538214697697835214412679538 
 | 72 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	..9.7...5.7.8.5...5..3.....9.7.6...8...2...1...4.87..664......9..8......79..4..8. 
 | 
	389476125471825693526319874937561248865234917214987356642158739158793462793642581 
 | 42 
							 | 
					
	01_file1 
 | 
	2..79.5...6.8.2...97..65...5.9....14....8.9..6......7....2.6.......78..97.295.... 
 | 
	241793568365842197978165342589637214427581936613429875894216753156378429732954681 
 | 31 
							 | 
					
	01_file1 
 | 
	.....7.3..7..5...8.56.3.....8...5...5..8.614.6...9....79......3...7..8....3.69.5. 
 | 
	928647531374152968156938472281475396539826147647391285792584613465713829813269754 
 | 26 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	.....8.4...71.....3...4.1..9...3..1..6.2..7.3.....59....2...8..7...8...1.5.6...9. 
 | 
	195728346487163529326549178978436215564291783231875964612954837749382651853617492 
 | 27 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	.19..7.......9.4..5..6...9...58....3.6..59.8.8....1......1...3..2....9..3......16 
 | 
	219437865683295471547618392975846123162359784834721659496182537721563948358974216 
 | 17 
							 | 
					
	puzzles4_forum_hardest_1905 
 | 
	.....7...2..5.......8.36.4.......1....6.18..3.....5.8..9.7...36..4.638..........4 
 | 
	639427518241589367578136942387694125956218473412375689895741236724963851163852794 
 | 33 
							 | 
					
	01_file1 
 | 
	...8.....97.4.1.6...4..67....8.....5.1.7....3.....9...78..6.4..1.9..7....4.9.8.1. 
 | 
	361872594975431862824596731298314675416785923537629148782163459159247386643958217 
 | 58 
							 | 
					
	01_file1 
 | 
	.216..7..67...4.929.4...1....2..9.....7...2.616.27..4.....5.4.9.............8..1. 
 | 
	321698754675134892984527163842369571597841236163275948216753489458916327739482615 
 | 48 
							 | 
					
	01_file1 
 | 
	.4...528...1...4.5..2.8..16.68....4.52...4...1..62.....8..........34...8..67..... 
 | 
	647915283891236475352487916968571342523894761174623859489162537715349628236758194 
 | 15 
							 | 
					
	puzzles1_unbiased 
 | 
	.2....37...5.....2.4.3.........18.6........5...6.5.2.185....6....47.6.2...3.498.. 
 | 
	621894375395671482748325196539218764172463958486957231857132649914786523263549817 
 | 2 
							 | 
					
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