Logic Masters Deutschland e.V.

Rules:

The first row are all column indexers. Each cell references another column in that row.

The top corners are also row indexers. Those cells indicate where the 1 goes in the their column.

The thick grey lines are Thermometers. Digits must increase along the line, starting from the bulb.

The thin grey line is a Sequence line. Digits must either always increase or always decrease along the line, by the same amount each time.

The blue line is a Region Sum line. Box borders divide the line into segments. Each segment has the same sum.

The peach line is an Entropic line. Every set of three digits along the line must contain a low digit (1,2,3), a medium digit (4,5,6), and a high digit (7,8,9).

The teal line is a Modular line. Every set of three digits along the line must contain a (1,4,7), a (2,5,8), and a (3,6,9).

The green line is a German Whisper line. Adjacent digits along the line must have a difference of at least five.

The pink line is a Renban line. Digits along the line must form a set of consecutive digits, in any order.

The orange line is a Dutch Whisper line. Adjacent digits along the line must have a difference of at least four.

The red line is a Parity line. Digits along the line must alternate parity.

The X separates digits that add to 10.

Play it on SudokuPad.