Logic Masters Deutschland e.V.

Solve on Sudokupad

Rules:

Place the digits 1-9 in every row, column and irregular box.

Antiknight: cells separated by a knight's move in chess cannot contain the same digit.

Global Modulo-3: every 2x2 square of cells must contain a digit from (1,4,7), a digit from (2,5,8), and a digit from (3,6,9).

Global Non-consecutive: cells that are orthogonally adjacent cannot contain consecutive digits.

Little Killers: digits along marked diagonals sum to the number indicated outside the grid.

Parity: cells with a circle must contain an odd digit.

Love, Brigitte