Chess Board
[ECO code E00]
TRANSPOSITION
CATALAN OPENING to NIMZO-INDIAN DEFENCE
Black developed his KB to QKt5(b4) with check, adopting an alternative Indian Defence.
White transposes into the inferior Steiner line of the Nimzo-Indian Defence by developing Queen's Knight to QB3(c3) to relieve check. W-Alt.
    White  Black    Transp.White Black
 1. P-Q4   Kt-KB3	  (1.)
 2. P-QB4  P-K3		  (2.)
 3. P-KKt3 B-Kt5 ch (3.	Kt-QB3 B-Kt5)
 4. Kt-QB3	    (4.	P-KKt3	    )
Continue: Transpose or Undo or Jump or Clear