Chess Board
[ECO code D35] Move Move Here
QUEEN'S GAMBIT - Exchange Var.
(to) Chameleon Variation

White's queen developed to QB2(c2) to support his K4(e4) contest and allow 0-0-0 [8.Kt-B3..Kt-K5!=].
Black's Rook to K1(e8) enables 9.BxP+ch..K-B1. The two moves pressure each half-open file. B-Alt.
    White  Black	White  Black
 1. P-Q4   P-Q4	     6.	P-K3   0-0
 2. P-QB4  P-K3	     7.	B-Q3   QKt-Q2
 3. Kt-QB3 Kt-KB3    8.	Q-B2   R-K1
 4. PxP	   PxP
 5. B-Kt5  B-K2

WHITE to Move or Undo or Jump or Clear
 
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