Logic Masters Deutschland e.V.

Normal sudoku rules apply. Clues outside the grid function as BOTH Sandwich and X-Sums Clues. In addition, Queen and King sudoku rules apply.

X-Sums: Numbers outside the grid indicate the sum of the first X digits in the corresponding direction. X is the first digit in the corresponding direction

Sandwich: Numbers outside the grid indicate the sum of the digits between the 1 and the 9.

King: No digit can lie a "king's move" away from an equal digit (i.e. no digit can be adjacent to an equal digit, even diagonally)

Queen: You cannot have the number 9 twice within a "queen's move" (along the same diagonal)

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