The number 073 can refer to: * Puzzle How Many Squares? from Professor Layton and the Curious Village * Puzzle Can Conundrum from Professor Layton and the Diabolical Box * Puzzle Tricky Tilework from Professor Layton and the Unwound Future * Puzzle Bottle Game from Professor Layton and the Last Specter * Puzzle Ancient Arithmetic from Professor Layton and the Miracle Mask * Puzzle Counting Sheep from Professor Layton and the Azran Legacy * Puzzle Walled In 2 from Professor Layton vs. Phoenix Wright: Ace Attorney