Chess Board
[ECO code C56] Move Move Here
(The) Centre-Play Variation

White's KKt cut his KKt4(g5) control, for 4..KtxP.
White's QPawn advance with Kt+Q support frees his QB and attacks Black's KP, inviting open play that can enable the Max Lange. Many prefer it to 4.Kt-Kt5, as it keeps the initiative longer. W-Alt.
	White	Black
 1.	P-K4	P-K4
 2.	Kt-KB3	Kt-QB3
 3.	B-B4	Kt-B3
 4.	P-Q4

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