Chess Board
[ECO code C34]
(KGA:) Gianutio Counter Gambit
The Alapin Variation

Black played a rare KBP counter against White's KP.
White declines, moving his endangered King's Pawn on to a supported K5(e5). Revived by Semyon Alapin (1856-1923), it featured heavily in a Vienna 1903 fixed-openings tournament.
	White	Black
 1.	P-K4	P-K4
 2.	P-KB4	PxP
 3.	Kt-KB3	P-KB4
 4.	P-K5

Example ends: Undo or Jump or Clear