Logic Masters Deutschland e.V.

Normal sudoku rules apply.

Skyscraper: Each digit represents a skyscraper of that height. Clues outside the grid indicate how many skyscrapers can be seen from that side. Taller skyscrapers hide the view of lower ones.
Sandwich: Sandwich totals show the sum of the digits sandwiched between the 1 and 9 in the respective row or column. No sandwich clues have been given but the solver does know with regard to the rows they increase by 1 as you go down ie their values are x + the row number where x has to be determined. Nothing is known about the columns in this respect.

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