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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
748625
879
21
49152
4
9
5421
21768
Argh!
Mar 20, 2033
8
83594
4926
453
9
1489
23
95
621
Difficult
Oct 31, 2036
716
782
23
2478
135
2
24
61
7865
Argh!

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.

Feb 22, 2011
9×11
Apr 5, 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.

Waterfallby thesaintWaterfall15×20
Miami Eightby UlrikMiami Eight24×16

Hashi

Generic description of hashi...

Jan 14, 2011
1
4
2
3
2
2
2
1
2
2
1
1
1
5
5
4
1
1
4
5
4
2
1
3
1
1
2
3
1
3
3
3
2
4
3
1
2
2
1
3
3
5
8
4
1
1
4
1
3
3
3
1
3
3
2
3
2
2
11×16
Jun 15, 2011
1
5
3
3
2
1
3
1
2
3
2
4
2
2
1
4
3
1
4
1
1
3
5
2
4
3
5
1
1
4
1
2
3
3
1
2
2
3
2
2
12×10

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 3, 2011
33775526
35514617
78127531
61238745
75678234
46317717
58162378
47687483
8×8
Jan 4, 2011
634555
125516
156453
361244
225464
642621
6×6

Nonogram

Paragraph talking about nonograms.

Jan 17, 2011
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X X X X
X X X
X
X
X X
X
X X X
X X X X
X X
X X X
10×10
Sep 3, 2012
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X X X X
X X X X X
X
X X X
X X X X X X
X X X X X X
X X
X
X X
X X X X X X X
X X X X X X X X
X X X X X X
X X X X
X X X X X X
X X X X X X X
X X X X X X X
X X X X X X X
X X X X X X X
X X
X X X X X X
20×20

Word Search

Word search description goes here.

Thirteen Original ColoniesConnecticut, Delaware, Georgia, Maryland, Massachusetts, New Hampshire, New Jersey, New York, North Carolina, Pennsylvania, Rhode Island, South Carolina, Virginia13 terms
ColorsBeige, Beige, Black, Blue, Brown, Chartreuse, Fuchsia, Green, Indigo, Magenta, Maroon, Mauve, Orange, Purple, Turquoise, Violet, White, Yellow18 terms

Mathdoku

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

Jan 6, 2011
60×1−
2−
9+180×1−
5+
20+7+4−
Average – 6×6
Jan 8, 2011
6+1−36×
36×1−
13+1−24×
4−7+4−
7+
Difficult – 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 25, 2011
111411
111871
193611
71191411
173111
4137735
141411916
1341113
5556151
33519
1919131
1441
41418141
17×13
Jan 29, 2011
13168115
111
2161339314
715171
5441411
1412441441
971115
1443
18161474
1551412
164111
12143443
31151115
17×13

Illumination

Paragraph talking about illumination.

Jan 26, 2011
123
0
1
21
11
2
002
1
21
1
010
2202
10
14×14
Feb 12, 2011
11
12
2
0
2
112
0
0
11
2
20
23
02
01
14×14