Chess Board
[ECO code C79]
MORPHY RUY LOPEZ - Russian Defence
Side Variation
White's QBPawn on QB3(c3) removes Black's doubled QP on Q4(d4), enabling Kt-QB3.
Black's QKt2(b7) Bishop removes White's KP for a slight advantage by 11.R-K1..B-K2, 12.Kt-B3..P-Q4!.
    White  Black	White  Black
 1. P-K4   P-K4	     6.	P-Q4   P-QKt4
 2. Kt-KB3 Kt-QB3    7.	B-Kt3?! KtxQP
 3. B-Kt5  P-QR3     8.	KtxKt  PxKt
 4. B-R4   Kt-B3     9.	P-QB3  B-Kt2!
 5. 0-0	   P-Q3	    10.	PxP    BxP
Example ends: Undo or Jump or Clear