Logic Masters Deutschland e.V.

Standard Sudoku: Each row, column, and 3x3 region contains each digit 1-9 exactly once.

Killer: In cages, digits sum to the value given in the top left corner.

Modular lines: digits connected by a teal line must be from different groups modulo 3: {1/4/7} {2/5/8} {3/6/9}

Entropic lines: digits connected by a peach line must be from different low/medium/high groups: {1/2/3} {4/5/6} {7/8/9}

German Whispers: digits connected by a green line must have a difference of at least 5.

Renban: digits connected by a pink line must be consecutive.

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