Answers to Turnabout Puzzles

Puzzle 1 5 moves

One way to record this is to use Binary Notation. 1 stands for a match pointing left, 0 stands for a match pointing right;

1 1 1 1

0 0 0 1

0 1 1 0

1 1 0 1

0 0 0 0

Puzzle 2 Only 4 moves

1 1 1 1 1

0 0 0 1 1

0 1 1 0 1

0 0 0 0 0

Puzzle 3 Only two moves

Puzzle 4 Only 3 moves

1 1 1 1 1 1 1

0 0 0 1 1 1 1

0 0 1 0 0 1 1

0 0 0 0 0 0 0

Investigation