Classic Puzzles

What’s inside

• In the standard three-door Monty Hall puzzle, what is the probability of winning the car if you switch doors after the…
• What is the minimum number of moves needed to solve the Tower of Hanoi with three disks?
• In the classic Bridge and Torch puzzle, four people need 1, 2, 7, and 10 minutes to cross. What is the fastest…
• What is the defining objective of the Eight Queens puzzle?
• The minimum number of moves for a three-disk Tower of Hanoi puzzle is [____].
• In the classic wolf, goat, and cabbage puzzle, the farmer must first transport the [____] across the river.
• In the classic counterfeit-coin puzzle with a balance scale, the unusual coin may be either heavier or [____] than the…
• A standard chess knight's tour requires the knight to visit every square exactly [____].