Logic Masters Deutschland e.V.

Normal sudoku rules apply.

Anti-knight rules apply. Digits may not appear within a chess knight's move of each other.

Normal killer sudoku rules apply. Digits must sum up to the number in the top left corner. Numbers may not repeat in a given cage.

Normal little killer rules apply. Numbers outside the grid represent the sum of the digits along the indicated diagonal. Digits may repeat along the diagonal as long as they follow all other given rules.

F-puzzles