Logic Masters Deutschland e.V.

Play on SudokuPad!

Normal sudoku rules apply.

Hidden Summits: Many cells are shaded. The sequence along both the row and column of a shaded cell must be ascending or descending, with 1 and 9 reversing the ascension/descension. (eg if digits along the row of a shaded cell are 2-5-6-9-8-7-4-3-1, the sequence is ascending until the 9 causes a descension).

Digits on an arrow indicate the distance to a shaded cell in that direction. If multiple shaded cells are in that direction, the arrow may indicate the distance to any of those shaded cells.

Thermometers: Digits along a thermometer ascend from the bulb.