Chess Board
[ECO code B23]
SICILIAN DEFENCE - Close Var.
The Korchnoi Variation
White pushed his king's knight's pawn out to KKt3(g3) signalling a KB fianchetto.
Black advances his Queen's Pawn to Q4(d5) in the centre, for 4.PxP..PxP, 5.B-Kt2..Kt-KB3, 6.KKt-K2..P-Q5 with advantage.
	White	Black
 1.	P-K4	P-QB4
 2.	Kt-QB3	P-K3
 3.	P-KKt3  P-Q4
Example ends: Undo or Jump or Clear