Chess Board
[ECO code B00]
TRANSPOSITION
NIMZOWITSCH DEFENCE to "EPINE DORSALE"

White's KKt contested for control of the two dark centre squares by countering Black's QKt influence.
Black advances his King's Pawn (supported by his QKt) to the centre, transposing back into the "Épine Dorsale" stem so as to maximise his defensive opportunities. The Ruy Lopez is now likely. B-Alt.
    White  Black    Transp.White Black
 1. P-K4   Kt-QB3   (1.	P-K4   P-K4  )
 2. Kt-KB3 P-K4	    (2.	Kt-KB3 Kt-QB3)

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