Chess Board
[ECO code C80]
OPEN RUY LOPEZ - Harksen Gambit
White's KKt2(g2) Pawn removes Black's knight to lift check, and doubles the attack on his light bishop.
Black's Queen develops to KR5(h4) targeting White's rear KBP for ..B-QB4, with equality.
    White  Black	White  Black
 1. P-K4   P-K4	     7.	B-Kt3  P-Q4!
 2. Kt-KB3 Kt-QB3    8.	P-B4   B-KKt5
 3. B-Kt5  P-QR3     9.	BPxP   QKtxP
 4. B-R4   Kt-B3    10.	R-K1   P-KB4
 5. 0-0    KtxP	    11.	P-KR3  KtxKt ch
 6. P-Q4   P-QKt4   12.	PxKt   Q-R5!
Example ends: Undo or Jump or Clear