Chess Board
[ECO code C50]
GIUOCO PIANO - Pianissimo Var.
The Dubois Variation
White's Q3(f3) Knight moves to KKt5(g5).
Black moves his KB4(f5) Pawn on to a defended KB5(f4) and cuts White's KKt defence. Once played by Italian Serafino Dubois (1817-99) in the 1850s.
	White	Black
 1.	P-K4	P-K4
 2.	Kt-KB3	Kt-QB3
 3.	B-B4	B-B4
 4.	P-Q3	P-B4
 5.	Kt-Kt5  P-B5
Example ends: Undo or Jump or Clear