Logic Masters Deutschland e.V.

Rules

You are standing before a massive 9x9x9 vault. To unlock it, you must deduce a secret 3-digit passcode. The 9x9 Sudoku grid on the vault's face holds the clues to the combination.

​The secret passcode is exactly 3 digits long, ​does not contain zeros and no digit is repeated.

Standard Sudoku: Place the digits 1–9 into the grid so that every row, column, and 3x3 box contains each digit exactly once.

Black Kropki Dots: If a Black Kropki dot lies between two cells, the digits have ratio 1:2. (One is double the other)

White Kropki Dots: If a White Kropki dot lies between two cells, the digits are consecutive.

Cages: ​Digits in dashed cages must sum to the number in the corner, if provided.

There are 10 horizontal cages (3 cells each). The dots attached to the outside of these cages indicate how their contents compare to the secret vault passcode: If x black dot/s is touching the cage, then exactly x digit/s in the cage is in the passcode and in the correct position. If x white dot/s is touching the cage, then exactly x digit/s in the cage is in the passcode but is in the wrong position.

Example: If a cage contains [5, 8, 1] and has one black and one white dot attached to the cage, then two of the digits 5, 8, and 1 are part of the passcode. One of these is in the correct position, another one is in the wrong position, and the remaining digit does not appear on the passcode.

Solve on Sudokupad