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Rohcana
  • Member for 8 years, 10 months
  • Last seen more than 6 years ago
13 votes
1 answer
2k views

Hat-guessing with a spy

13 votes
4 answers
3k views

Same time, same height

8 votes
1 answer
1k views

The magic square with a hole

7 votes
2 answers
697 views

Lock Optimisation

5 votes
1 answer
526 views

Perfectionist Pete's Perfect Pain: Even Tilings

5 votes
1 answer
287 views

The Case of the Strange Astronomy Test

3 votes
3 answers
557 views

Checkerboard tour

2 votes
5 answers
1k views

Measure the height

2 votes
1 answer
315 views

Registers in Infinityland

2 votes
2 answers
207 views

A bunch of related letters

2 votes
3 answers
771 views

Captain Jack and the treasure chests [duplicate]