Variant - 10/04/2013
Today's variant (Diagonal Skyscrapers) seems to have multiple solutions.
Are there any additional constrains?
Message which I sent to all players who have started this puzzle:
Dear players!
I'd like to apologize to all of you because of today's variant Diagonal Skyscrapers. There was necessary to swich the version of the Flash window to new one and I forgot to do it.
Right now it's fixed and you can try to play Diagonal Skyscrapers again with correct puzzle.
I'm sorry for this mistake.
And there was a mistake in the English rules!
New one are here now!
Write a single number from 1 to 9 in each cell such that each number appears exactly once in every row, column, and bolded 3x3 box. Numbers in the grid represent skyscrapers of nine different heights. The numbers outside the grid means how many skyscrapers are seen from that direction on corresponding diagonals (higher skyscrapers cover lower ones behind them).
Karel (Kodyn)
