How is this a blunder?

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Avatar of allanzhangyr3

https://www.chess.com/analysis/game/live/129135261619?tab=review&move=86

Avatar of allanzhangyr3

More like an inaccuracy

Avatar of Hyper-N0va
Looks more like a miss
Avatar of Diddy_foid

bc the opponent will win a pawn

Avatar of Abtectous
It’s a blunder because you lost your advantage
Avatar of emmett2K

press show moves and it will show you why

Avatar of allanzhangyr3

I did press the show moves button but it shows I will lose a pawn by moving it forward once more.

Avatar of allanzhangyr3

Just dont move the pawn forward once more.