Logic Masters Deutschland e.V.

Fill each cell with a digit from 1 to 8. Every digit must appear once in any row or column. Every digit inside the grid represents a building with a specific height. The digits outside the grid indicates the number of buildings visible from that direction. A building is visible if all the other buildings are lower than it. Also the digit in the cell with circle is a valid skyscraper clue for 2 directions (out of possible 4 directions). Besides grey painted connected cells must include buildings with consecutive heights.