Why win on time?

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Avatar of Mekis

I played a 1 minute Live game. I won over my opponent on time. I just dont know why. I cannot see what my opponent missed, I should have won on check mate. Or am I missing something?

The game was played by Mekis (1335) against zootman11 (1394), you find it here http://live.chess.com/simple?v=2011072801#


Thanks

Mekis

Avatar of CassidyT

I believe your opponents d5 pawn could take your c5pawn en passant