Chess Board
[ECO code A11]
TRANSPOSITION
ENGLISH OPG. (Anglo-Slav Def.) to SLAV DEFENCE
Black set a QP with QBP support, aiming to maintain the centre while threatening ..P-QKt4 (to take White's unprotected QBP and then keep the pawn gain).
White transposes into the QGD. Slav mainline by a Queen's Pawn to the centre, doubling control of K5(e5) while extending a QBP gambit offer. W-Alt.
    White  Black    Transp.White Black
 1. P-QB4  P-QB3    (1.	P-Q4   P-Q4 )
 2. Kt-KB3 P-Q4	    (2.	P-QB4  P-QB3)
 3. P-Q4	    (3.	Kt-KB3	    )
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