Chess Board
[ECO code C44]
TRANSPOSITION
PONZIANI'S OPENING to RUY LOPEZ (Classical Def.)
Black developed his king's bishop to QB4(c5) to delay White's planned P-Q4.
White transposes into the Classical Defence of the Ruy Lopez (best) by developing his own King's Bishop to Kt5(b5) to half-pin Black's QKt. W-Alt.
    White  Black    Transp.White Black
 1. P-K4   P-K4		  (1.)
 2. Kt-KB3 Kt-QB3	  (2.)
 3. P-B3   B-B4	    (3.	B-Kt5  B-B4)
 4. B-Kt5	    (4.	P-B3	   )
Continue: Transpose or Undo or Jump or Clear