Logic Masters Deutschland e.V.

Normal Sudoku Rules apply. Every row, column and marked region in the puzzle must contain the digits 1-9 exactly once.

Additional Rules:

Global Entropy: Group the digits 1-9 into low(123), middle(456), and high(789) digits. Every 2x2 cell group in the puzzle must contain at least one digit of each group.

Antiknight: Digits who are a chess knight's move apart can't be identical.

Arrow: Digits on arrows sum to the number in the circle and may repeat if allowed by other rules.

Thermo: Digits on thermos rise from the bulb end.

F-Puzzles

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