Chess Board
[ECO code C25]
VIENNA GAME
Anderssen Defence
Black's K2(e7) queen to K4(e5) stopped White's KP from advancing further, and broke the KKt pin.
White moves his KR4(h4) Bishop to KKt3(g3) to attack Black's queen, with a slight advantage.
    White  Black     6.	B-KKt5 P-KR3
 1. P-K4   P-K4	     7.	B-R4   Kt-B3
 2. Kt-QB3 B-B4	     8.	KtxKt  PxKt
 3. Kt-B3  P-Q3	     9.	B-Q3   Q-K2
 4. P-Q4!  PxP	    10.	0-0    Q-K4
 5. KtxP   Kt-KB3   11. B-Kt3
Example ends: Undo or Jump or Clear