Chess Board
[ECO code B07]
TRANSPOSITION
PILLSBURY to PHILIDOR DEF. (Jaenisch Ctr-Attack)
Black advanced an attacking KP, rejecting the Pirc for a Philidor (towards Steinitz Ruy Lopez) line.
White develops his King's Knight to KB3(f3), defending his threatened QP and prepared to play a 4..Kt-B3..B-QKt5 option. W-Alt.
    White  Black    Transp.White Black
 1. P-K4   P-Q3	    (1.	P-K4   P-K4  )
 2. P-Q4   Kt-KB3   (2.	Kt-KB3 P-Q3  )
 3. Kt-QB3 P-K4     (3.	P-Q4   Kt-KB3)
 4. Kt-B3	    (4.	Kt-B3	     )
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