Logic Masters Deutschland e.V.

This puzzle is a combination of standard sudoku rules with pentominoes.

Rules:

• Normal sudoku rules apply.
• Odd pentominoes: Divide a portion of the grid into pentominoes (orthogonally connected groups of exactly 5 cells), such that:
  • Pentominoes are allowed to touch each other, even when they have identical shapes.
  • Cells inside each pentomino must contain odd digits, and cells outside all pentominoes must contain even digits.
  • Digits can repeat in a pentomino if allowed by standard rules.
• Kropki dots: Digits connected by a white dot are consecutive. Digits connected by a black dot have a 1:2 ratio. Not all dots are given.

In the following example, the orange and yellow odd cells form two pentominoes, and the blue even cells lay outside all pentominoes:

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