Chess Board
[ECO code A06]
TRANSPOSITION
RETI / ZUKERTORT OPG. to COLLE SYSTEM
Black advanced his QP to the vacant centre, freeing his QB and controlling White's K4(e4).
White transposes into a close positional Queen's Pawn Game usually leading to the Colle System by advancing his Queen's Pawn to the centre, as an alternative to the main 2.P-QB4 reply. W-Alt.
    White  Black    Transp.White Black
 1. Kt-KB3 P-Q4	    (1.	P-Q4   P-Q4)
 2. P-Q4	    (2.	Kt-KB3	   )
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