Logic Masters Deutschland e.V.

Normal sudoku rules apply. Place the digits 1 - 9 once in every row, column and box.

Each gold line is both a 10-line and a 9-line.

10-Lines: Each line consists of one or more contiguous groups of cells, each of which sums to 10. These groups of cells cannot overlap. Digits may repeat freely on lines and even within sums.

9-Lines: Each line consists of one or more contiguous groups of cells, each of which sums to 9. These groups of cells cannot overlap. Digits may repeat freely on lines and even within sums.

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