Logic Masters Deutschland e.V.

Standard sudoku rules apply: The digits 1 through 9 appear in every row, column, and box.

Draw a one-cell-wide snake of orthogonally connected cells containing only fibonacci-digits (1,2,3,5,8). The snake starts in one caged cell and ends in the other caged cell. It cannot touch itself, not even diagonally. Circle cells are snake cells and give to number of snake cells in the surrounding 3x3-region, including itself. Square cells are not on the snake and their digit is the number of non-snake-cells in the surrounding 3x3 region including itself. Additionally, a square cell can never contain a fibonacci-digit (1,2,3,5,8).

XV-Dominos: Cells separated by an X must sum to 10. Cells separated by a V must sum to 5. Not all Xs and Vs are necessarily given (no negative constraint).

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