Logic Masters Deutschland e.V.

Parity Snake

Rules:

Normal sudoku rules apply. Draw a snake in the grid. A snake is a one-cell-wide path of orthogonally connected cells which may touch itself diagonally but not orthogonally. The snake acts as a parity line i.e. adjacent digits on the snake have different parity (one digit is odd and the other is even). Any cell with arrows is never on the snake. A digit in an arrow cell equals the number of cells in the indicated direction(s) that ARE NOT on the snake, including itself. If a cell has multiple arrows, count each arrow separately; each has the same total. Not all possible arrow cells are given, but If a cell does have any given arrows, then all possible arrows for that cell 's digit are given.

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