Chess Board
[ECO code C65]
RUY LOPEZ - Berlin Defence
The Nyholm Attack
Black's KP removed White's QP on Q5(d4) to offset the BxKt.., KtxP.. threat, seeking to gain a pawn.
White castles, bringing an early King's Rook into play towards the half-open kings-file. Tends to give easy equality after 5..B-B4, 6.P-K5..Kt-Q5, 7.B-Kt5..B-K2. W-Alt.
    White  Black	White  Black
 1. P-K4   P-K4	     5.	0-0
 2. Kt-KB3 Kt-QB3
 3. B-Kt5  Kt-B3
 4. P-Q4   PxP
Example ends: Undo or Jump or Clear