Chess Board
[ECO code C01]
FRENCH DEFENCE
Side Variation

White's challenged KB3(f3) Pawn exchanges, removing White's newly doubled KP on K4(e4).
Black develops his Queen to KR5(h4) with check, to win White's KP (and if 5.P-Kt3?..QxKP+ch, 6..QxR).
	White   Black
 1.	P-K4    P-K3
 2.	P-Q4    P-Q4
 3.	P-KB3?!	PxP
 4.	PxP	Q-R5 ch

Example ends: Undo or Jump or Clear