Chess Board
[ECO code C46]
TRANSPOSITION
THREE KTS. OPG. to LOPEZ FOUR KTS. OPG.
White (like Black) developed his KB to QKt5(b5) to half-pin his opponent's QKt and QP to their king.
Black transposes into the Double Ruy Lopez of the Four Knights Game by developing his King's Knight to KB3(f6) to attack White's KP, adopting symmetry.
    White  Black    Transp.White Black
 1. P-K4   P-K4		  (1.)
 2. Kt-KB3 Kt-QB3	  (2.)
 3. Kt-B3  B-Kt5    (3.	Kt-B3  Kt-B3)
 4. B-Kt5  Kt-B3    (4.	B-Kt5  B-Kt5)
Continue: Transpose or Undo or Jump or Clear