Logic Masters Deutschland e.V.

Put digits from 1 to 9 into every cell of all cube faces.

Digits cannot repeat in a row, column or 3x3 box (face of the cube). "Rows" and "columns" are 6 cells long - they extend across the edge and take 2 faces of the cube.

Cells separated by a black dot have a ratio of 1:2.

Cells separated by a green dot have a ratio of 1:3.

Cells separated by a red dot have a ratio of 2:3.

All black, green and red dots are given.

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