Chess Board
[ECO code C67]
RUY LOPEZ - Open Berlin Def.
"5.R-K1" Variation
White develops his Queen's Knight to QB3(c3) tripling his control of the uncontested K4(e4).
Black's Q3(d6) Knight on to K1(e8) enables 9.Kt-Q5..B-B3, 10.Kt-Kt4..P-Q3 for a slight advantage.
    White  Black	White  Black
 1. P-K4   P-K4	     6.	KtxP   B-K2
 2. Kt-KB3 Kt-QB3    7.	B-Q3   0-0
 3. B-Kt5  Kt-B3     8.	Kt-B3  Kt-K1
 4. 0-0    KtxP
 5. R-K1   Kt-Q3!
Example ends: Undo or Jump or Clear