Strong game but blunderd in the end....puzzle it

PeterArt
PeterArt
Dec 30, 2010, 6:40 PM |
3

Here i played a cool game weird but strong.. but ..then somehow i blundered in the end. I will reveal the move where i blundered later, but can you find it too ?
Drop your comments 

(there is only one move here where all my winning chances who are quite high suddenly drop)