The White Square Safe
The trick to cracking this safe is to slide the white square over the other squares and turn them all white. To solve, letter the top of the sheet A-G (there are 7 squares across) and number the sheet down from the left side 1-8. The white square starts at B2. From there, use the path B2, B3, C3, C1, D1, F1, F2, E2, E4, F4, F6, D6, D5, B5, B4, B6, B7, A7, A8, C8, D8, F8, F7, G7 and finally E7 to finish the puzzle.
15 Total Keypad Safe
This safe requires the sum of all diagonals, rows, and columns to sum 15. Click the right side top arrow to switch the numbers then click the left-side bottom arrow and then bottom row left arrow. This sets up the numbers to click the fourth arrow, the arrow on the right in the top row. This will get the rows to equal 15 and unlock the safe.
The Broken Lock Safe
Arguably one of the most challenging safes in the game, the broken lock safe produces wrong numbers. The "3" should be clicked four times. After four selections, the readout needs to fade, which takes a few seconds. The "2" must be selected for four sequences, meaning a total of 16 clicks. The "6" is then selected for three sequences. Click the "3" once, and then the "2" twice, and the "6" one final time.
The Queen's Chess Safe
The Queen in chess is powerful. It can move in all cardinal directions and diagonals. Capitalizing on this fact, this safe requires strategic placement of the pieces so that they are not in attacking lines. Letter the top of the board A-F, and number the left side, top to bottom 1 to 6.
Place the first queen at C-6. Place the second at F-5. The trick is to place one queen in a different row (since they can't share rows), column, and diagonal. The third queen should be placed at B-4. The final three should be E-3, A-2, and D-1.