Chess Board
[ECO code B00]
TRANSPOSITION
KP.OPENING to QP.OPENING (Polish Defence)
Black developed his queen's bishop to QKt2(b7), counter-attacking White's king's pawn.
White transposes into the Polish Defence against a Queen's Pawn Opening by advancing his Queen's Pawn to the vacant centre, leaving his KP en prise.
    White  Black    Transp.White Black
 1. P-K4   P-QKt4   (1.	P-Q4   P-QKt4)
 2. BxP	   B-Kt2    (2.	P-K4   B-Kt2 )
 3. P-Q4	    (3.	BxP	     )
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