When I played a game on chess.com and then ran the analysis afterward, the computer said that the pawn move c6 was incorrect.
[title "Black to play"]
[fen "r1b2rk1/p1p2p1p/5p2/2bNq3/8/8/PPP1BPPP/R2Q1RK1 b - - 0 1"]
[startflipped "0"]
1... c6
I don't understand why the move is considered a missed win. Can anyone explain why?