Why is this a blunder?

Sort:
jugglingeek

I'm struggling to understand the engine here. How come 14. Ne5 is considered such a bad move? This was in a 5min blitz game (3:30 each left on the clock). This doubles blacks kingside pawns and leaves material advantage the same (I'm still up a pawn)

I've heard that the engine can sometimes call a move a blunder because you didn't see a complicated 5-move sequence that a beginner might be forgiven for not seeing. Is this such a case?

Sred

14.Qd2 Bb6 and now Ne5 is much stronger because Black can't save the Queen while still protecting the Bishop (...Qf5 e4).