Chess Board
[ECO code C25]
TRANSPOSITION
VIENNA GAME to FOUR KNIGHTS' GAME
White transposed from the Vienna into the Three Knights Opening by developing his king's knight to threaten Black's defended KP.
Black further transposes into the Four Knights Game by equally developing his King's Knight to threaten White's defended KP in turn. B-Alt.
    White  Black    Transp.White Black
 1. P-K4   P-K4		  (1.)
 2. Kt-QB3 Kt-QB3   (2.	Kt-KB3 Kt-QB3)
 3. Kt-KB3 Kt-KB3   (3.	Kt-QB3 Kt-KB3)
Continue: Transpose or Undo or Jump or Clear