Logic Masters Deutschland e.V.

Whirlpool

Rules:

1. Standard: Normal sudoku rules apply.

2. Standard killer: Digits in a cage must sum to the clue in the top left corner.

3. Palindrome variant: Digits on the line are a palindrome whose two ends have to be discovered. No digit may appear more than twice in the palindrome (i.e. each digit is reflected to the other side of the palindrome, but cannot reoccur other than that).

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