Logic Masters Deutschland e.V.

Standard sudoku rules apply: The digits 1 through 9 appear in every row, column, and box.

Thermometers: Digits on Thermos are strictly increasing from bulb to tip.

Renban line: Usually shown as purple lines, digits along a Renban line must form a set of non-repeating consecutive digits in any order.

Kropki pairs: Digits in cells separated by a black dot are in a 2:1 ratio. Not all dots are necessarily given.

play on sudokupad