Chess Board
[ECO code C49]
(4N) DOUBLE RUY LOPEZ - Symmetrical V.
Metger Unpin
White's threatened dark bishop returns to base.
Black moves his K-side Rook across to Q1(d8) to face White's queen on the d-file, for equality.
    White   Black	White  Black
 1. P-K4    P-K4     7. B-Kt5  BxKt
 2. Kt-KB3  Kt-QB3   8. PxB    Q-K2
 3. Kt-B3   Kt-B3    9.	R-K1   Kt-Q1
 4. B-Kt5   B-Kt5   10.	P-Q4   Kt-K3
 5. 0-0     0-0	    11.	B-QB1  R-Q1
 6. P-Q3    P-Q3
Example ends: Undo or Jump or Clear