Logic Masters Deutschland e.V.

Sudoku: Normal Sudoku rules apply; place the digits 1-9 once in every row, column, and 3x3 box.

Loop Construction: Construct a one cell wide, closed loop of orthogonally connected cells around the grid. The loop may not touch itself in any way.

German Whisper Loop: Adjacent digits along the loop differ by at least 5.

Diamonds: The 3x3 box borders divide the loop into segments. Cells with a diamond are on the loop and count the length of the segment it's on in that box.

Exceptional Circles: Cells with a circle are on the loop, but are excepted from the German Whisper constraint. The same digit is in both circles.

Expected Difficulty: 2 stars

This was set in response to Scojo's Setting Saturday Prompt, this week chosen by Prof. Dorlir: A Loop puzzle with less than 10 clues on the grid.

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