Professor Layton and the Diabolical Box puzzle 42?
Make your first cut under the first box on the top left of your screen and make the second cut under box three in row two
How do you play the unsolve puzzle after you have finished the game of Professor Layton and the diabolical box?
Unlock The Diabolical Box Reopened Puzzle. When you complete Professor Layton And The Diabolical Box you will receive a system-specific code, which can then be entered by selecting the 'Hidden Door' option at the 'Top Secret' screen in Professor Layton And The Unwound Future. Please see the related link below for a walkthrough of the puzzle.