Chess Board
[ECO code C25]
VIENNA GAMBIT
(The) Side Variation
White's KB4(f4) gambit pawn, perhaps unwisely, removes Black's KPawn on K5(e5). W-Alt.
Black pushes his Queen's Pawn out one square to attack White's doubled pawn (hoping to draw it further to the queen's side) with a slight advantage.
	White	Black
 1.	P-K4	P-K4
 2.	Kt-QB3	Kt-QB3
 3.	P-B4	B-B4
 4.	PxP?	P-Q3!
Example ends: Undo or Jump or Clear