Chess Board
[ECO code D51] Move Move Here
QUEEN'S GAMBIT
(back towards) Orthodox Defence
White's KP push freed his KB to support his QBP+QP.
Black rejects Cambridge Springs and Manhattan opportunities by developing his King's Bishop to K2(e7) to half-unpin his KKt and enable ..0-0. B-Alt.
     White   Black
 1.  P-Q4    P-Q4
 2.  P-QB4   P-K3
 3.  Kt-QB3  Kt-KB3
 4.  B-Kt5   QKt-Q2!
 5.  P-K3    B-K2    Alt. 5B,4B route
WHITE to Move or Undo or Jump or Clear
 
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