Chess Board
[ECO code A05]
TRANSPOSITION
RETI / ZUKERTORT OPG. to OLD INDIAN DEF.
Black pushed his QP out a single square, freeing his queen's bishop for a possible ..B-KKt5 half-pin.
White transposes into an Old Indian Defence variation by advancing his Queen's Pawn to the centre, freeing his QB and taking control of Black's K4(e5). W-Alt.
    White  Black    Transp.White Black
 1. Kt-KB3 Kt-KB3   (1.	P-Q4   Kt-KB3)
 2. P-B4   P-Q3	    (2.	P-QB4  P-Q3  )
 3. P-Q4	    (3.	Kt-KB3	     )
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