Chess Board
[ECO code C65] Do not scroll the screen..! Move Move Move Move Move Move Here Move Here Move Here Move Here
RUY LOPEZ
Berlin Defence (alt. route)
Black's KKt removed White's KP in the centre.
White castles (best) to avoid an otherwise likely Q+KR fork (as 5.PxP..B-B4, 6..KtxBP), and reverts to the main Berlin continuation.
    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   KtxP    Main 5W,4W route
BLACK to Move or Undo or Jump or Clear
 
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Chess Board

BLACK moves to Q3 (d6) with:

Pawn (d7) or Knight (e4) ?

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