Chess Board
[ECO code D35] Move Move Here
QUEEN'S GAMBIT DECLINED
Exchange Variation - main
White's P-K3 supported his QP, threatened a safe 7.KtxP and enabled 7.B-Q3 for Kt1-R7 (b1-g7) control.
Black's QBPawn push increases his QP defence and reduces pressure from White's half-open QB-file. The earlier exchange can occur on 3rd-6th moves. B-Alt.
    White  Black	White  Black
 1. P-Q4   P-Q4      5.	B-Kt5  QKt-Q2
 2. P-QB4  P-K3	     6.	P-K3   P-B3
 3. Kt-QB3 Kt-KB3
 4. PxP	   PxP	  Alt. 5W-6B,4WB route
WHITE to Move or Undo or Jump or Clear
 
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