Chess Board
[ECO code C46]
TRANSPOSITION
THREE KTS. OPG. to RUY LOPEZ (Steinitz Def.)
Black's QB set avoided an exchange of centre Ps+Qs.
White transposes into the Old Steinitz Defence of the Ruy Lopez by developing his King's Bishop to QKt5(b5) to half-pin Black's QKt and light bishop.
    White  Black    Transp.White Black
 1. P-K4   P-K4		  (1.)
 2. Kt-KB3 Kt-QB3	  (2.)
 3. Kt-B3  P-Q3	    (3.	B-Kt5  P-Q3)
 4. P-Q4   B-Q2	    (4.	P-Q4   B-Q2)
 5. B-QKt5	    (5.	Kt-B3      )
Continue: Transpose or Undo or Jump or Clear