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klm123
  • Member for 10 years
  • Last seen more than a week ago
7 votes
3 answers
1k views

Most moveable chess position

7 votes
1 answer
1k views

What is the "linguistically hardest" number less than $10^9$?

3 votes
1 answer
1k views

Paying the unfair Troll toll

10 votes
2 answers
941 views

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

8 votes
1 answer
934 views

Number of tries to guess M-1 letters from M-letters-code

7 votes
2 answers
927 views

Cooperative guessing against an evil god

5 votes
1 answer
901 views

Beautiful HH-pattern. Find it

8 votes
6 answers
884 views

Guess another's present

9 votes
2 answers
882 views

How to generalise hang picture puzzle?

0 votes
2 answers
876 views

Unlimited paper folding

17 votes
2 answers
826 views

Are you more clever than Alice?

9 votes
2 answers
797 views

Middle weight puzzle

11 votes
1 answer
757 views

Find the color of the chess pieces

11 votes
2 answers
738 views

First number, which can not be defined

8 votes
3 answers
732 views

Guess your hat color, but you don't have to

0 votes
2 answers
724 views

Number of ways to fold a 2x4 map

3 votes
2 answers
721 views

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

14 votes
3 answers
721 views

Strategy to beat the Casino reversed

4 votes
1 answer
674 views

Decode Voyager's Message to Aliens

3 votes
2 answers
653 views

Does this strategy work?

8 votes
1 answer
629 views

Find the smallest N to complete the task: "Write a true self-reflective statement about the digits from 0 to N"

3 votes
1 answer
590 views

$N_{max}$ balls in 3 weightings

5 votes
1 answer
579 views

Optimal strategy against a random opponent

0 votes
2 answers
566 views

Is there probability based Knight-Knave puzzles?

5 votes
1 answer
561 views

How to control the whole board with 8 standard pieces?

2 votes
2 answers
557 views

T Knights, L Knaves and R Jokers

0 votes
1 answer
498 views

Boxxxing puzzle [closed]

11 votes
2 answers
484 views

From knights to kings

8 votes
2 answers
484 views

Modifying the puzzle: Cooperative hat-guessing, no mistakes, 3+ colors

8 votes
3 answers
451 views

Find a straight tunnel 2