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klm123
  • Member for 10 years
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9 votes
2 answers
881 views

How to generalise hang picture puzzle?

6 votes
1 answer
12k views

Maximal number of steps needed to solve 2x2x2 Rubik's Cube

11 votes
1 answer
4k views

How to solve this crazy Chinese puzzle for children?

16 votes
4 answers
38k views

How to solve this IQ test puzzle with arrows and pied squares?

3 votes
2 answers
721 views

How to generalise Partition of the pie for N envy people?

5 votes
2 answers
1k views

Is there a brute-force solution of this puzzle?

31 votes
5 answers
6k views

Two spies throwing stones into a river

25 votes
3 answers
19k views

Write twenty-four from four numbers

3 votes
2 answers
653 views

Does this strategy work?

11 votes
1 answer
757 views

Find the color of the chess pieces

18 votes
3 answers
4k views

Knights and jokers

18 votes
2 answers
2k views

How to create a pure mathematical-logical based puzzle equivalent to resistance based physical puzzle?

10 votes
1 answer
890 views

Is there a retrograde analysis puzzle like "Point on the incorrectly drawn chess piece"?

13 votes
7 answers
3k views

Fastest way to collect an arbitrary army

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