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isaacg
  • Member for 8 years, 1 month
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29 votes
Accepted

Creating the hardest 6x6 maze

26 votes

Knights , Knaves and Spies - Part 1

24 votes
Accepted

Consecutive integers around a circle

19 votes

Open-ended challenge: Find the longest morsagram word pair

14 votes
Accepted

Blindfold Bingo

12 votes

A robot surviving on top of a 3x3 platform

11 votes
Accepted

Covering an 8x8 grid with X pentominoes

11 votes

Blue eyes riddle: what information is gleaned after the first night?

11 votes

Can the cop catch the thief?

11 votes

Two Men - The Physicist and Plumber

10 votes
Accepted

Eight coins for the fair king

7 votes
Accepted

Treasure hunt 'round the world! (clue 4)

5 votes

Knight and knave impostors!

5 votes
Accepted

Find Those Chess Notations! #4

5 votes

Fair results with unfair die

5 votes
Accepted

Optimal present wrapping with a rectangle

5 votes
Accepted

The Survivors of Dictionaria

5 votes
Accepted

Checkmate with two knights, but with a twist

5 votes

Nice no-computers way to find limerick primes?

4 votes

A mini game with 15 pieces of paper

3 votes

Let's Play Tetris!

3 votes

How to solve morse code without spaces?

3 votes
Accepted

Guess the hat colors - Riddle 3

3 votes

The Trickster's Game

3 votes

Find words with the highest proportion of a single letter

3 votes

How do I arrange pencils so they all touch each other?

2 votes

Yet Another Card Payoff Game

2 votes

Is equality possible?

2 votes
Accepted

Mensa sample question - squares with shaded and unshaded parts

1 vote

Logic puzzle: Driving around the United States