Logic Masters Deutschland e.V.

Rules:

• Normal sudoku rules apply: place the digits 1-9 once each in every row, column and region.
• Psycho Look-and-Say Killers: Digits in pink cages may not repeat. Each digit in a cage indexes a cell in the grid. The cell is located in the box with the digit's number, in the same position within the box as the cell containing the digit. A digit may index its own cell. The cage clue should be read as a look-and-say clue that counts the number of times a digit appears in all the indexed cells.
• XV pairs: Cells separated by an X sum to 10. Cells separated by a V sum to 5. (Not all XV pairs are given.)

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