Logic Masters Deutschland e.V.

RULE SET:

Normal Sudoku rules apply. Place the digits 1 through 9 in each row, column, and box.

MODULO-3 LINES: The grey lines are modulo-3. Any set of three sequential cells along a grey line must contain a complete set of residues modulo-3: one digit from (1,4,7), one from (2,5,8), one from (3,6,9).

KROPKI: Black dots are a 1:2 ratio. White dots are consecutive. Not all dots are given.

X-PAIRS. Cells separated by a "X" must equal to 10. Not all X-pairs are given.

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