Fill each cell with a digit from 1 to 6. 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 sum of invisible (not seen) buildings from that direction. A building is visible if all the other buildings are lower than it.
Solution code: Both diagonals, first from top left to the bottom right, then from top right to the bottom left.
on 22. November 2010, 19:36 by Saskia
Ich liebe dieser immer wieder neuen Hochhausvarianten!!!