Chess Board
[ECO code C52]
EVANS GAMBIT - Compromised D. - Side V.
Black's QKtP push freed his QB for a likely ..B-QKt2.
White's KPawn pushes on to K6(e6) and Black has a lost game, for after 12..QP or BPxP, 13.BxP..PxB [not 13..QxB, 14.R-K1], 14.QxKt+ch winning the rook.
    White  Black	White  Black
 1. P-K4   P-K4	     7.	0-0    PxP
 2. Kt-KB3 Kt-QB3    8.	Q-Kt3  Q-B3
 3. B-B4   B-B4	     9.	P-K5   Q-Kt3
 4. P-QKt4 BxP	    10.	KtxP   BxKt?!
 5. P-B3   B-R4	    11.	QxB    P-QKt3
 6. P-Q4   PxP	    12.	P-K6
Example ends: Undo or Jump or Clear