Chess Board
[ECO code A41] Move Move Here
TRANSPOSITION
PILLSBURY DEF. towards NIMZOWITSCH DEF.
Black's QP gave up the centre to deter an attacking 2.P-K4..Kt-KB3, 3.P-K5 while allowing 2.Kt-KB3..B-Kt5.
White develops his King's Knight to KB3(f3) and doubles his control of Black's K4(e5) - a rare move inviting a 2..B-KKt5 pin. More likely to arise via the Wade Def. to a Zuckertort/Reti Opg, but can be in either of 1970s ECO code move orders. W-Alt.
    White  Black    Main Wade D. route
 1. P-Q4   P-Q3	    (1.	Kt-KB3 P-Q3)
 2. Kt-KB3	    (2.	P-Q4	   )
BLACK to Move or Undo or Jump or Clear
 
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