Chess Board
[ECO code C62]
RUY LOPEZ - Steinitz Defence
Nimzowitsch Attack

White's KP removes Black's Q4(d5) attack bishop.
Black castles to bring his king's rook over towards the open king's (e-)file, but 12.0-0 will bring White a lasting advantage - also arising via Philidor Def..
    White  Black     6.	BxKt!  BxB
 1. P-K4   P-K4	     7.	Q-Q3   PxP
 2. Kt-KB3 Kt-QB3    8.	QxP    P-KKt3
 3. B-Kt5  P-Q3	     9.	B-Kt5  B-Kt2
 4. P-Q4   B-Q2	    10.	Kt-K5  BxKt
 5. Kt-B3  Kt-B3    11.	PxB    0-0

Example ends: Undo or Jump or Clear