Chess.Com Engine says Blacks move is a mistake please help to analyse

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Yuvi2021
why chess.com says the move of Black here as "mistake:

Yuvi2021

link for the above is https://www.chess.com/game/live/5989392956

 

blueemu

Qxf4

EDIT: wait... Qc8+ is even better.

Yuvi2021

@blueemu, i am playing black and Question is when i play Bg6 to Bh5, chess,com says its a mistake and suggest me Nf4 to Ng2 which doesn't make sense , my question is does the chess.com engine is wrong in recommending me that move , by the way , with my move i win the match 

talliholic

u left a free knight so is mistake

blueemu
Yuvi2021 wrote:

@blueemu, i am playing black and Question is when i play Bg6 to Bh5, chess,com says its a mistake and suggest me Nf4 to Ng2 which doesn't make sense , my question is does the chess.com engine is wrong in recommending me that move , by the way , with my move i win the match 

Yes, I know. Bh5 is a mistake because White can answer it with Qc8+ followed by Ba3+ and you are toast.

Lagomorph
Yuvi2021 wrote:

@blueemu, i am playing black and Question is when i play Bg6 to Bh5, chess,com says its a mistake and suggest me Nf4 to Ng2 which doesn't make sense , my question is does the chess.com engine is wrong in recommending me that move , by the way , with my move i win the match 

With your move ( Bh5), how do you respond to Qxf4 ?

blueemu
Lagomorph wrote:
Yuvi2021 wrote:

@blueemu, i am playing black and Question is when i play Bg6 to Bh5, chess,com says its a mistake and suggest me Nf4 to Ng2 which doesn't make sense , my question is does the chess.com engine is wrong in recommending me that move , by the way , with my move i win the match 

With your move ( Bh5), how do you respond to Qxf4 ?

Why bother? Qc8+ wins Black's Queen.

Doesn't it?... unless I'm going blind...

blueemu
Optimissed wrote:

Pity you didn't post a diagram that shows the correct position, instead of some fantasy position that shows two moves. Of course it's obvious that Nxb2 is correct. Then black can play Be4, winning the exchange if you wish.

Ummm... what's wrong with the position in the diagram?

Here's the game:

And as I keep pointing out, Qc8+ followed by Ba3+ is curtains.

ItzPranay

White can now win a knight,

ItzPranay

NxG2 would give white a solid attack on the uncastled king

ItzPranay

Black I mean sorry

ItzPranay

Though White should be able to easily defend

psychohist
blueemu wrote:

Why bother? Qc8+ wins Black's Queen.

Doesn't it?... unless I'm going blind...

I think it does.  Either way, Bh5 throws away a win.

ItzPranay

Winning the rook, yeah

ItzPranay

Causing black to lose castling

ItzPranay

White is really winning

Yuvi2021

@bluemeuitzpranay @phshosist @optimissed  thanks for analyzing ! cleary my move Bh5 is a blunder , however white continued to make mistake and i was able to pick up the game later . thanks once again .

nTzT

Bh5 allows Qc8+ completely winning for white because your King moves up then Bh3 and you have to give up your queen.