Chess Board
[ECO code C68 > 99] Do not scroll the screen..! Move Move Here Move Here
RUY LOPEZ - main continuation
The Morphy Defence
Black's Queen's Rook's Pawn to QR3(a6) attacks the B half-pin. The most popular third Black move, used by American Paul Morphy from 1858. White must now decide whether to take the QKt without material gain, for if the usual 4.B-R4(a4) then ..P-QKt4 may drive it back fully (to break the pin). B-Alt.
	White	Black
 1.	P-K4	P-K4
 2.	Kt-KB3	Kt-QB3
 3.	B-Kt5	P-QR3
WHITE to Move or Undo or Jump or Clear
 
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Chess Board

WHITE moves light Bishop:

B-R4 (Ba4) or BxKt (Bxc6) ?

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