Chess Board
[ECO code A80]
The Alapin Variation

Black advanced his KBP to KB4(f5), ahead of any KKt development, to control White's K4(e4).
White rarely develops his Queen early to Q3(d3) to attack and dislodge Black's KBP, rather than take a positional line or play the sharp Staunton Gambit (2.P-K4) to open the game up. W-Alt.
	White	Black
 1.	P-Q4	P-KB4
 2.	Q-Q3

Example ends: Undo or Jump or Clear