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Why is this move a blunder?

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PieceRaider

EnCrossiantIsBrilliant

Usually, 2 minor pieces are considered better than a rook.

borovicka75
AfterBd4?? 11.c3 black has two minor pieces attacked (Bd4 and Nc6) so he will lose one of them.
PieceRaider

But hardly a blunder? Or what am I missing. Mistake perhaps...

WongEthanLY

After Nxd4 your threat against the rook is no longer available.

after exd4, white will play dxc6, gaining a knight.

it also ruins your position if you take the pawn back on c6.

PieceRaider

Thx but look again

RabidRapids
PieceRaider wrote:

But hardly a blunder? Or what am I missing. Mistake perhaps...

Giving away a minor piece (bishop or knight) is definitely a blunder.

borovicka75's analysis is correct. After White plays 11. c3 ..., you lose a minor piece. Since your Knight is being attacked by the d5 pawn, it should have been moved to a safe square instead, such as 10 .... Ne7 or 10 .... Nd4.

RabidRapids
WongEthanLY wrote:

After Nxd4 your threat against the rook is no longer available.

after exd4, white will play dxc6, gaining a knight.

it also ruins your position if you take the pawn back on c6.

In your variation, Black would play Nxd4 in response to Nxd4, not exd4. Nxd4 would be a blunder for White.

WongEthanLY
RabidRapids wrote:
WongEthanLY wrote:

After Nxd4 your threat against the rook is no longer available.

after exd4, white will play dxc6, gaining a knight.

it also ruins your position if you take the pawn back on c6.

In your variation, Black would play Nxd4 in response to Nxd4, not exd4. Nxd4 would be a blunder for White.

ah, I see I got that wrong there. Now we’re on the same page. It looks like #3 is the correct solution.

AlphaTeam
dxc6 Bxa8 cxb7 if black saves the bishop on a8 then bxa8=Q if Bxb7 then Qxa8 winning a bishop, knight, and a pawn for a pawn and a rook. The bishop and knight is worth more than a rook, and is worth more than just the pawn advantage. You can coordinate those pieces to win even more material. Also black’s pawn structure is now weaker also. That is why it is a blunder
WongEthanLY
PieceRaider wrote:

can you give us the chess game details? This way we can all analyze what is going on.