Chess Board
[ECO code D52] Move Move Here
QGD. - CAMBRIDGE SPRINGS DEF.
Bogoljubow Variation
White's Q2(d2) Knight removes Black's doubled QBP on QB4(c4) and attacks the queen on QR5(a5).
Black's Queen withdraws to QB2(c7), occupying White's half-open file opposite White's queen.
    White  Black	White  Black
 1. P-Q4   P-Q4	     6.	Kt-B3  Q-R4
 2. P-QB4  P-K3	     7.	Kt-Q2  B-Kt5
 3. Kt-QB3 Kt-KB3    8.	Q-B2   PxP
 4. B-Kt5  QKt-Q2!   9.	BxKt   KtxKt
 5. P-K3   P-B3	    10.	KtxP   Q-B2
WHITE to Move or Undo or Jump or Clear
 
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