Chess Board
[ECO code C23] Move Move Here
BISHOP'S OPENING - Classical Var.
(to) Vienna Game

Black moved his king to KB1(f8) to defend his KBP as best, to gain the better development despite forfeiting all chance of castling.
White's KKt4(g4) Queen moves to KKt3(g3) (else 4..P-Q4 gains) and attacks Black's undefended KP.
	White	Black
 1.	P-K4	P-K4
 2.	B-B4	B-B4
 3.	Q-Kt4   K-B1
 4.	Q-Kt3

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