Sicilian

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Avatar of PokerGod33

From WIkipedia: The Nadjabov's intention with 5...a6 was to prepare ...e5 on the next move to gain space in the centre; the immediate 5...e5?! is met by 6.Bb5+!, when Black must either play 6...Bd7 or 6...Nbd7. The former allows White to exchange off Black's light-squared bishop, after which the d5-square becomes very weak...

 

 

Now can somebody explain HOW DOES d5 become weak after the exchange of bishops...

 

THANK YOU IN ADVANCE...

Avatar of Azukikuru

There no longer are c- or e- pawns defending d5, nor is there a white bishop, either. Black's only cover is the knight on f6, which is overpowered by the combination of white's knight on c3, his e-pawn, and possibly his queen when the other knight gets out of the way.