Logic Masters Deutschland e.V.

Rules:

• Normal Sudoku rules apply
• Digits in a circle must appear in the four surrounding cells
• Some gray regions are Kropki regions: a black diamond indicates digits with a 2:1 ratio and a white diamond indicates consecutive digits
• The other gray regions are XV regions: a black diamond indicates digits that sum to 10 and a white diamond indicates digits that sum to 5
• The solver must determine which gray regions are Kropki and which are XV. Digits must not repeat in gray regions.
• Not all diamonds are given
• One-cell cages all contain the same digit

F-puzzles

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