Logic Masters Deutschland e.V.

Named for the song by the band Foghat - take it easy, listen to some classic rock, and enjoy the puzzle!

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Rules:

- Normal Sudoku rules apply.

- Slow thermometers - digits must not decrease along a slow thermometer, starting from the bulb.

- XV Sums - digits separated by X sum to 10; digits separated by V sum to 5. No negative constraint.

- German Whispers - neighboring digits on a green German Whisper line must differ in value by at least 5.

- Ratio Kropki - digits separated by a black Kropki dot have a value ratio of 2:1. No negative constraint.

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Sudokupad