Chess Board
[ECO code A23] Move Move Here
ENGLISH OPG. - Bremen (or Carls's) System
The Keres Variation

White's KKtPawn pawn push signalled an intention to increase his control of Q5(d5) by a KB fianchetto.
Black sets his Queen's Bishop's Pawn on QB3(c6) to shield his QKtP against the 4.B-KKt2 threat and enable 4..P-Q4. Paul Keres (1916-75) was among the world's top IGMs after 1935. B-Alt.
	White	Black
 1.	P-QB4	P-K4
 2.	Kt-QB3	Kt-KB3
 3.	P-KKt3	P-B3

WHITE to Move or Undo or Jump or Clear
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