Logic Masters Deutschland e.V.

Normal sudoku rules apply. Place the digits 1 - 9 once in every row, column and box.

Rotational Sums of 10: Every cell has a rotational opposite when the the grid is rotated 180 degrees (a half circle) around the central cell. Every cell plus its rotational opposite add to 10. Eg. R4C1 and R6C9 add to 10.

Palindromes: Grey lines are palindromes. Digits must read the same from both ends of the palindrome.

Nth digit not N: The digit in position N on a palindrome cannot be N. This rule applies to both ends of the palindrome. Eg. A three cell palindrome cannot have 1 or 3 at the ends and cannot have 2 in the middle cell.

White Kropki Dots: Digits separated by a white dot are consecutive. Not all dots are given

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