Chess Board
[ECO code C66] Move Move Here
RUY LOPEZ - Berlin Def.
The Closed Berlin - (to) Chig./Hedgehog V.

White castled to free his KR for use in the centre.
Black's Queen's Pawn to Q3(d6) switches his KP defence, "closes" his KB and frees his QB. Solid but constricted (his QKt being pinned until 5..B-Q2), it is also called the "Improved Steinitz Def.". B-Alt.
    White  Black
 1. P-K4   P-K4
 2. Kt-KB3 Kt-QB3
 3. B-Kt5  Kt-B3
 4. 0-0    P-Q3	  Transp.from Steinitz

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