Chess Board
[ECO code C20]
TRANSPOSITION
CENTRE PAWN OPG. to PONZIANI O. (Jaenisch C-A.)
White's King's Knight deploys to KB3(f3) attacking Black's KP and supporting 4.P-Q4. Other moves allow Black to take the initiative with 3..P-Q4!, 4.PxP..QxP.
Black transposes into the Ponziani Opening mainline, developing his Queen's Knight to QB3(c6) defending his KP and contesting White's Q4(d4) control.
    White  Black    Transp.White Black
 1. P-K4   P-K4		  (1.)
 2. P-QB3  Kt-KB3   	  (3.)
 3. Kt-B3  Kt-B3	  (2.)
Continue: Transpose or Undo or Jump or Clear