Yes because around the "1" clue in the top right, there has to be more than 1 clue neither of which are "1". You have the "1" acting as just a "3" instead of at least 2 separate blocks. There may be other errors but that should clear it, as you've probably misunderstood the rules in general. There must be a different number of blocks than the number of digits given too.

Edited by prasanna16391 2012-03-24 6:32 PM

hey zalak, i am also facing the same problem but re logging does not solve it please help I am really cuprous about my result. Is there any problem in my pc or in my internet connection and what should I do to correct it?
Thanx