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.

Kropki: Digits with a white dot between them must be consecutive, digits with a black dot are in a 1:2 ratio. Not all dots are given. Dots between cages refer to the cage sums as opposed to individual digits.

Killer: Digits in cages sum to the number in the corner of the cage (if given) and can't repeat within a cage.

F-Puzzles

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