Chess Board
[ECO code C40]
QUEEN'S PAWN COUNTER-GAMBIT
(The) Side Variation

White's KB3(f3) knight took Black's offered KP on K5(e5), targeted his weak KBP and opened a K-side queen path (rather than play a usual 3.PxP).
Black's KBPawn advance to KB4(f5) for a doubled attack on White's QP is a poor move. White to reply 4.Q-KR5+ch..P-Kt3, 5.KtxP gains advantage. B-Alt.
	White	Black
 1.	P-K4	P-K4
 2.	Kt-KB3	P-Q4!?
 3.	KtxP	P-KB4?

Example ends: Undo or Jump or Clear