Chess Board
[ECO code A21 > 29] Move Move Move Move Here Move Here Move Here
Sicilian Variation

Black's unopposed KP advance to the vacant centre freed his Q (to attack White's K-side) and his KB.
White develops his Queen's Knight to QB3(c3) behind his QBP to double his control of Q5(d5) and to control his K4(e4), planning to advance his KP in the next move. W-Alt.
	White	Black
 1.	P-QB4	P-K4
 2.	Kt-QB3

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