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Sudoku

Sudoku is the classic Japanese number puzzle. In a 9×9 grid, you must place the numbers 1–9 in each row, column, and 3×3 square.

Today
351
2187
42
278
345
571
62
56
54
Difficult
Jun 26, 2023
362
4
2349
596
643
97
92
753
268
Argh!
Jun 19, 2031
95671
8256
1725
35291
2978
5
63
9365
Difficult

Kakuro

Kakuro is a popular logic puzzle made with a patterned grid of empty squares. Each empty square must be filled with a number between 1 and 9. Numbers can only be used once in each horizontal or vertical series, and they must add up to the sum shown above each column or to the left of each row. Each puzzle has only one unique solution.

May 15, 2011
9×11
Jun 16, 2011
9×9

Jigsaw

Your jigsaw puzzle begins as a jumbled mass of color, but once solved these puzzles are art. Work against the clock or simply play for fun. Jump into a random jigsaw puzzle to begin playing immediately, or browse through the jigsaw gallery to find your perfect challenge.

Muckross Houseby sumejaMuckross House20×15
Alimentacion 24by L_AviAlimentacion 2424×16

Hashi

Generic description of hashi...

Feb 17, 2011
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10×11
Oct 20, 2011
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2
10×19

Hitori

My hitori generator still needs work, as it can't yet make puzzles which can be solved with logic alone. I'm working on it. If anyone knows of any free hitori generators, I'd appreciate the info.

Jan 2, 2011
106688775105
85746121910
7897851129
21062761915
10688964741
9156224897
2339486619
98494107867
1947216428
732259101074
10×10
Jan 4, 2011
634555
125516
156453
361244
225464
642621
6×6

Nonogram

Paragraph talking about nonograms.

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15×15
May 2, 2011
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15×15
Dec 31, 2012
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20×20

Word Search

Word search description goes here.

Sherlock HolmesBaker Street, Baskervilles, Conan, Deerstalker, Doyle, Holmes, Hound, Irregulars, London, Moriarty, Pipe, Reichenback Falls, Sherlock, Watson14 terms
Manhattan NeighborhoodsBattery Park City, Chelsea, Chinatown, East Village, El Barrio, Financial District, Greenwich Village, Hamilton Heights, Harlem, Hell's Kitchen, Inwood, Little Italy, Lower East Side, Meatpacking District, Midtown, Morningside Heights, Soho, Sutton Place, Tribeca, Turtle Bay, Upper East Side, Upper West Side22 terms

Mathdoku

This page is incomplete. For now, jump to a random mathdoku puzzle.

Jan 1, 2011
10+9+13+
4−20×
7+
1−
24×36×25×
2−
Average – 6×6
Jan 5, 2011
1−15×48×
3−
1−15+30×
1−15+
5+7+
Average – 6×6

Polyomino

A polyomino is a misshapen domino. In these puzzles, you must divide the grid into polyominoes and determine the shape of each polyomino given its size in the grid. Polyominoes of the same size cannot share a side.

Jan 7, 2011
11815131
3931
912331517
1431181
1741141
3164
413662131212
115571
31177155
771511
181911
533541
311181481
17×13
Jan 10, 2011
1111113
9611
81555571612
1641112
3764185
114644411
5111315
551318411
712141411
193373
11711112
344141
111413
17×13

Illumination

Paragraph talking about illumination.

Jan 2, 2011
24
00
0
342
01
001
0142
12
1
12
01
14×14
Mar 1, 2011
1
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010
14×14