Chess Board
[ECO code D20]
QUEEN'S GAMBIT ACCEPTED - Old Var.
Side Variation
Black's P-QKt4(b5) sought to defend his doubled QBP to keep the extra pawn, but will not succeed.
White simply advances his QRPawn to QR4(a4) attacking Black's QKtP, for 4..PxP, 5.QxP+ch recoups [or if 4..P-B3?, 5.PxP..PxP, 6.Q-B3! to win at least a Kt].
	White	Black
 1.	P-Q4	P-Q4
 2.	P-QB4	PxP
 3.	P-K3	P-QKt4?!
 4.	P-QR4
Example ends: Undo or Jump or Clear