Logic Masters Deutschland e.V.

• Normal sudoku rules apply.
• Cells one chess knight's move apart may not contain digits in 1:2 ratio (they still may be the same digit if allowed by other rules).
• Digits joined by a red dot are in 1:3 ratio. Not all possible red dots are given.
• Digits joined by a black dot are in 1:2 ratio. Not all possible black dots are given.
• Digits joined by a white dot are consecutive. All possible white dots are given.

Online in Sudokupad

See also:

• knights in not black satin