Logic Masters Deutschland e.V.

normal sudoku rules apply within the center 9x9 grid.

slow thermometers: digits along a slow thermometer form a non-decreasing sequence, going from the bulb to the tip

skyscrapers: digits outside the grid give the number of digits in that row/column that are larger than all digits between itself and the clue. [as an example, a row reading 162738495 would have a clue of 5 on the left (counting 16789) and a clue of 2 on the right (counting 59).]

note: to trigger completion, fill in all skyscraper values along the outside thermometer.

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