Chess Board
[ECO code C42]
TRANSPOSITION
PETROFF DEF. (Boden G.) to ITALIAN 4KTS. GAME
White developed his queen's knight as a target, his gambit letting Black keep his KP (ie. a pawn gain).
Black develops his own QKt transposing into the Italian Four Kts but still threatens ..KtxKt, so White must respond KtxKt or 0-0 to regain equality. B-Alt.
    White  Black    Transp.White Black
 1. P-K4   P-K4		  (1.)
 2. Kt-KB3 Kt-KB3   (2.	Kt-KB3 Kt-QB3)
 3. B-B4   KtxP	    (3.	Kt-B3  Kt-B3 )
 4. Kt-B3  Kt-B3!?  (4.	B-B4?! KtxP! )
Continue: Transpose or Undo or Jump or Clear