Logic Masters Deutschland e.V.

• Normal sudoku rules apply.
• The grid is projective: each edge of the grid is considered to be adjacent/orthogonal to its diametrically opposite edge. (For example, r2c1 is considered orthogonally adjacent to r8c9.) Lines wrap around diametrically opposite sides of the grid.
• Cells one chess knight's move apart may not contain the same digit (and that includes moves across the edges of the grid).
• Adjacent digits along a green line must have a difference of at least 5.
• Digits joined by a black dot are in 1:2 ratio, digits joined by a green dot are in 1:3 ratio, and digits joined by a white dot are consecutive. Not all possible dots are given.

Online in Sudokupad

See also:

• gegenübertragung
• projective identification