From SudokuWiki.org, the puzzle solver's site

Test Strings

These strings test puzzle definitions for the solvers. These include deprecated definitions that are still supported. Hopefully they all work. See Sudoku String Definitions and Killer String Definitions.

Sudoku

There is a Sudoku board I would like you to look at

https://www.sudokuwiki.org/sudoku.htm?bd=720096003000205000080004020000000060106503807040000000030800090000702000200430018

Alternatively, with candidates (Version B):
https://www.sudokuwiki.org/sudoku.htm?bd=S9B0702160a0906164i038u1f7z025u05aj5u8r9208870m2a04ar028z4m2q6g7m655u890685010i06050k03080d074m046g8i6t5u89128522032y081u0a3w0924cq1vbv071u02261222023m2q04030i3m0108

Alternatively, with candidates (old style):
https://www.sudokuwiki.org/sudoku.htm?bd=41051g02g1211g9009io22gq05c011mic0iij881ha08400hn205j29850dcg0cmc0he21h603g021110409810g41980hdci0e6c0he18h63g095g8130027kg13krg32pi4130053o183g0570500h09g0700381

Sudoku X

There is a Sudoku X board I would like you to look at

https://www.sudokuwiki.org/sudokux.aspx?bd=500063402402000300000254006020000547000506020850402030200340000004000203900020004

Alternatively, with candidates (Version B):
https://www.sudokuwiki.org/sudokux.aspx?bd=X9B05czczcz060c0dcz020ddv02czczcz036bbn2fd3d30b05045vcz061j028nb7bb430e04072f9r9j055z06b70bb70805ab0d9f0b8j037n0b6r770304dfdvebbn376r04dvczdf02dv0c096v7b6r026b6r7704

Alternatively, with candidates (old style):
https://www.sudokuwiki.org/sudokux.aspx?bd=058ig19g12215idi099o0o1ato05to21hgoiboaq41poh2po05pioiioiq811g41hg0q05gi41gq0a2181050qgq11gg1105gg0903812141980521da0hd8g1da82p8410hpa21p81a180503o81805h0t85odo21

Jigsaw Sudoku

There is a Jigsaw Sudoku board I would like you to look at

https://www.sudokuwiki.org/jigsaw.aspx?shape=9&bd=800005004007084000001962000670000005000470000300500007003807000000790000700600001

Alternatively, with candidates (Version B):
https://www.sudokuwiki.org/jigsaw.aspx?bd=J9B00801k1040t50t50sl1211vb1l001002000g0t50so0st1tz1tz1ti2ei01a0010090sm1ky1ra1ra42e2di2ds00s36h36h3h31w749t3yd2lh2p12p035w35z3hz4ah4ah4ag2df2ot4zg36636d3hv6nw4al3yf2lp4zx4qr4qw5kd6br6ks6ks46s4rx4st4ss5jk5jd5nb6hc6hc6go4qv4z05nw5ja5kg5na5o06nk6bl

Alternatively, with candidates (old style):
https://www.sudokuwiki.org/jigsaw.aspx?shape=9&bd=812cg40e0e11kema0h143c400e810gjajai81g1o03g12105d8d88821400k0e0eoaoaou11h6p6p40h41qaqeqeqc09omik1006q2qkqm41hmjm09811m41jkjki41m3m3k40g18absbsac41hk9k211s889sps03

Jigsaw Sudoku (custom shapes)

There is a Jigsaw Sudoku board I would like you to look at

https://www.sudokuwiki.org/jigsaw.aspx?shape=29&bd=070002000000000000100300006000000430000050000006000000400207009000000100008000000&jigmap=222266666299944446222995546299955446193354486133558887135588777133338887111117777

Alternatively, with candidates (Version B):
https://www.sudokuwiki.org/jigsaw.aspx?bd=J9B1520sn10u15649r3ya49y4a34331546od6lp6q32r92pv2ro2rp44v0sh14c10s6bn6os3h63iq2qs3ye1506o56lh6pv3jn3hv2dg2df44j0ag6nx1up1y335x2pf2r85vg44f0a01wx1l23iz3j35v25uw5v04xd0041pj36f35u5o65jb4w64w34qx0aw1ww1v41yi1y85vy5j55vw4xc0aw0950080ar0ah4sv4ug4ul4tt

Alternatively, with candidates (old style):
https://www.sudokuwiki.org/jigsaw.aspx?shape=29&bd=r841horgoq05p8pi9qrcrmlmviu6r2v4v6dq03pkhk09skogs0t421r4r6l6v2u2q20h09d2mcqmkusi11q2u4qkcqlcpu21sisqpopcpkdu0h9a0a05a841b8b2g1ncpslstgssro03rkdsncje81n2me3q7c7m5u&jigmap=222266666299944446222995546299955446193354486133558887135588777133338887111117777

Alternatively, with candidates (ancient delimited style):
https://www.sudokuwiki.org/jigsaw.aspx?shape=29&bd=436,64,284,440,397,2,404,409,157,434,443,347,505,483,433,498,4,217,1,410,282,4,458,392,448,466,32,438,435,339,497,485,421,8,499,213,358,427,335,457,16,417,482,426,205,342,415,32,457,461,412,406,410,223,8,149,5,2,164,64,180,177,256,374,414,350,472,462,444,1,442,222,374,311,128,369,359,61,118,123,95&jigmap=222266666299944446222995546299955446193354486133558887135588777133338887111117777

Windoku

There is a Windoku board I would like you to look at

https://www.sudokuwiki.org/windoku.aspx?bd=000000002640000093023040010008020000000407000000060300010030970430000061700000000

Alternatively, with candidates (Version B):
https://www.sudokuwiki.org/windoku.aspx?bd=W9Bbnde9v0mbncn5m4q0206042r2r6b0k6a0903bm0203aq045e76016a83aq0883020m3u169u0m8y9104bn070j4k1e849u0qbm060j034sde4k011w5g030q09074i040384dgde4k4k060107ci90clbnct4s0m0q

Alternatively, with candidates (old style):
https://www.sudokuwiki.org/windoku.aspx?bd=812109k64iki1042g0g006102008c6d6420hk60hk6s611c6092180060980d621100gg146i611g60h42094281200g412086g1860m110820g10h1005e2c209c21186a60880uig00gc2088240s24qki210511

Colour Sudoku

There is a Colour Sudoku board I would like you to look at

https://www.sudokuwiki.org/coloursudoku.aspx?bd=506007000000090030074000005002070090300010002010040300200000140060050000000200607

Alternatively, with candidates (Version B):
https://www.sudokuwiki.org/coloursudoku.aspx?bd=C9B050c064e48070i0a0d4344435n095n0g03570i0704435455b650050f4i0252074m4a090a030ddeci01ci0e0g020g010i0e040b035e4y024mbq0g0fba0104bad706d3d705bjb844ba0d0ibb0246bb060e07

Alternatively, with candidates (old style):
https://www.sudokuwiki.org/coloursudoku.aspx?bd=1108218o8c41g0020g828482big1bi4009aig0410h82acaeo0a411209005a841988gg102090gt0r003r01040054003g0100h0409b0a00598p84020o8030ho8si21sasi11oqo484o80gg0oa0588oa211041

Killer Sudoku

There is a Killer Sudoku board I would like you to look at

https://www.sudokuwiki.org/KillerSudoku.aspx?bd=112211211112122333231131231212331221212441321121141341133233142133244132131113332,240006001700021000000000121000230000160800001020180023000716000000000000000000200000100000190607000000001200002400150400050011000000001200002500000013000000000000

Alternatively, with candidates (Version B):
https://www.sudokuwiki.org/KillerSudoku.aspx?bd=L9B0j9r00a71jbr1el30dqq00b61g5n08b300en00b300a71ekr09vz1mvj1ez33bpr2tjj2tjj1rin2zgx00b300b531ch0g411t3j2tfz0ihb1ey905td1rgy2tjl2tjl00ep1ez31ez500ep1ey900a91etu4nwx484100ep31fz1ez500ep0fe91jbj05wv00dt483500dt2tin4hkh00dt00ep3cdt2tjj1qtt2wbb2t5j04cv48411no100ep2tf52tjj1ez54hld484100en3dap1ez500ep2tf50aof00ep00ep2tjl2tjj2tjl1ez5

Alternatively, with candidates (old style):
https://www.sudokuwiki.org/KillerSudoku.aspx?bd=60001h0148000h2g00000001302h015q0202412200002i504h025o011o410202000101000100015303002i01004o1h1o0003000233000062023p120218032p000202013303006a01000238000002020201,nqlq0a0ao0o004vqvqnqlq04vqvqvqvqvqvqnq80nqnunununqnqnqtuluk0vuvuvuvqvuvutuluk0vuvuvuvqvuvutu20tqtutututqtutuvuluvqvu0a0avqvuvuvuluvqvuvuvuvqvuvuvuluvqvuvuvuvqvuvu

KenKen 6x6

There is a KenKen 6x6 board I would like you to look at

https://www.sudokuwiki.org/KenKen6x6.aspx?bd=K6B040b00nf5nwr00gb5mq35n4b5mq3bayz5miz00gbb96z00975n4bb96zb8ln5oi3b8zv00gb01fvb8lngxfv5miz5mbvb9e30097guvfgv2j009700gbb8zv00235oaz5mx7gyffgvgrguvf

Alternatively, with current progress:
https://www.sudokuwiki.org/KenKen6x6.aspx?bd=K6B03yj00lm5nw200fn5mpf5n3n5mpfbayr5miq00gbb96z00975n3nb96rb8ln5oi3b8zv00gb01e7b8lfgxfv5miz5mbvb9dr007jguv7gv2j009700gbb8zj000a5o9q5mvygyepgvg1guup

Old style:
https://www.sudokuwiki.org/kenken6x6.aspx?bd=112122232131233231134223144113122444,20x,,8,2-,2/,,2/,12x,,,3-,1-,,,,11%20,,,7%20,,13%20,,,4-,,,,1-,,,,10x,,18x,,,

KenDoku 6x6

There is a KenDoku 6x6 puzzle I would like you to look at

Click on this link:
https://www.sudokuwiki.org/KenDoku6x6.aspx?bd=D6B030r5paj5mx700gb00uj5op70097b9l7gvgrgvnvbakr5mx70023b8zv02ff5n4bb96z5mbv5mx7gvgr00nf5mq3028b00975n4bgv9n0023bmtnb96z0023mqmjmhqjmh57b8ln5n4b5mq3

Alternatively, with current progress:
https://www.sudokuwiki.org/KenDoku6x6.aspx?bd=D6B03045p8p5mvf00fr00tz5oon008kb9kdgvfzgvn3baji5mwr001wb8z102ez5n3zb95q5mbf5mwjgvgn00mz5mpr028b00975n3ngv9j001nbmt0b96c001zmqlymhpymh4mb8jt5n3z5mpr