Logic Masters Deutschland e.V.

Rules:

• Normal Sudoku rules apply.
• Digits in the coloured "rings" must form the first eight digits of Pi (i.e.: 3.1415926) reading either clockwise OR counter-clockwise.
• Digits in cages must sum to the total in the top-left.
• Digits cannot repeat along either main diagonal.
• Digits on a green line must differ by at least 5.
• Digits separated by a white dot must be consecutive.

Links to online solving tools:

• F-Puzzles
• Cracking The Cryptic