Logic Masters Deutschland e.V.

Normal sudoku rules apply. Each row, column, and box must be filled with the digits 1-9 exactly once. Digits in columns 1, 5, and 9 determine the positions of digits 1, 5, and 9 in each of their respective rows (ie. if R2C1 is a 7, then R2C7 is a 1). Cells joined by a black dot are in a ratio of 1:2, all black dots are given. Cells joined by a white dot have a difference of 1, not all white dots are given. The numbered arrow outside the grid indicates the sum of the digits in the corresponding direction.

Solve on Sudokupad here!

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