Welcome

This should only take a couple of minutes.

The puzzles will increase in difficulty.

If one frustrates you, feel free to skip it.

HIDDEN MESSAGE

What is the word hidden above?

MATCHSTICK PUZZLE

What is the smallest number of segments that you would have to remove, in order to leave exactly 3 squares and nothing else?

RUNES

What is the last rune?

BONGARD PROBLEM

What group does each of the figures below belong to?

A

B

A

B

A

B

A

B

A

B

COINS ON A BOARD

Coins can move right, left, and down (but not up) by one square.

A coin cannot land on a grey square. However, it may land on an occupied square.

The board below contains 9 coins. Given unlimited turns, what is the largest number of coins that you can accumulate on the same square?