Logic Masters Deutschland e.V.

Normal 4x4 sudoku rules apply.

Numbered Rooms: All outside cells on a clue must contain a digit. That digit must also appear in the Nth position looking into the grid in the row/column, where N is the digit in the first position.

Renban Lines: Digits on a line form a consecutive sequence without repeats when sorted.

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Normal 4x4 sudoku rules apply.

Numbered Rooms: All outside cells on a clue must contain a digit. That digit must also appear in the Nth position looking into the grid in the row/column, where N is the digit in the first position.

German Whisper: Adjacent digits on the line must have a difference of at least 2.

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Normal 4x4 sudoku rules apply.

Numbered Rooms: All outside cells on a clue must contain a digit. That digit must also appear in the Nth position looking into the grid in the row/column, where N is the digit in the first position.

Slow Thermometer: Digits on the slow thermometer may not decrease starting from the bulb.

Click on the image to play!

Normal 4x4 sudoku rules apply.

Numbered Rooms: All outside cells on a clue must contain a digit. That digit must also appear in the Nth position looking into the grid in the row/column, where N is the digit in the first position.

Full Rank Numbered Rooms: The outside clues are 16 numbered rooms clues, and the given grey digits indicate the rank of those clues, with 1 being the smallest and 16 being the largest. If two clues are equal, they both share the lower rank. For example, if there were three 1 clues and one 2 clue, their ranks would be 1 and 4 respectively.

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