490
mathematics
× 176 |
43
letters
|
16
pattern
× 6 |
9
checkerboard
× 3 |
179
formation-of-numbers
× 22 |
40
liars
× 3 |
16
algebra
× 4 |
9
packing
|
173
logical-deduction
× 153 |
39
game
× 12 |
13
paradox
× 2 |
8
enigmatic-puzzle
× 2 |
123
geometry
× 55 |
35
lateral-thinking
× 11 |
12
computer-puzzle
× 5 |
6
magic
|
122
optimization
× 70 |
23
number-theory
× 9 |
11
number-sequence
× 11 |
5
grid-deduction
× 6 |
105
combinatorics
× 46 |
22
alphametic
× 4 |
11
meta-knowledge
× 4 |
5
algorithm
× 3 |
65
calculation-puzzle
× 14 |
22
unsolved-mysteries
|
11
graph-theory
× 4 |
5
coin-tossing
× 3 |
63
strategy
× 58 |
21
weighing
× 19 |
11
construction
× 3 |
5
matches
× 2 |
57
visual
× 7 |
21
dice
× 5 |
11
number-property
× 2 |
5
physics
× 2 |
50
probability
× 31 |
18
puzzle-history
× 3 |
11
decanting-problems
× 2 |
5
frobenius
|
45
chess
× 10 |
17
open-ended
× 4 |
11
computer-science
|
4
keys-and-locks
× 2 |
44
no-computers
× 15 |
17
triangle
× 2 |
10
game-theory
× 6 |
4
sudoku
× 2 |
43
english
|
16
board-games
× 6 |
10
primes
|
4
nim
|
Oray
