Chess Board
[ECO code E01 > 09] Move Move Move Move Here Move Here Move Here
Main line (to Open/Closed/Tarrasch-Cat. V's.)

Black advanced a triple-defended QP to the centre.
White fianchettoes his King's Bishop on Kt2(g2) to control the long light diagonal and threaten Black's QP, leaving his QBP en prise (ie. in a position to be taken). Sometimes termed a Neo-Catalan. W-Alt.
	White	Black
 1.	P-Q4	Kt-KB3
 2.	P-QB4	P-K3
 3.	P-KKt3	P-Q4
 4.	B-Kt2

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