Logic Masters Deutschland e.V.

Normal Sudoku rules apply.

Cells separated by a King's move in chess (horizontal/vertical/diagonal neighbours) cannot have the same digit. Grey circles indicate an odd digit, grey squares indicate an even digit. Clued cells and cells containing digits that equal their box number are Parity Poopers.

A Parity Pooper containing the digit N has exactly N-1 digits of opposite parity (odd/even) in the surrounding cells (by King's move).

Play in the CTC App