Chess Board
[ECO code A43]
(OLD) BENONI DEFENCE
Blockade Variation (alt. route)
White advances his King's Pawn to K4(e4) in the centre to support his QP and free his KB.
Black pushes his QPawn out to support his KP+QBP and free his QB, to face (usually) 5.Kt-B3..QKt-Q2, 6.B-QKt5..P-QR3 or 5.P-B4..PxP, 6.BxP..B-K2.
    White  Black    Main 2.P-K4 route
 1. P-Q4   P-QB4	  (1.)
 2. P-Q5   Kt-KB3   (2.	P-Q5   P-K4  )
 3. Kt-QB3 P-K4	    (3.	P-K4   P-Q3  )
 4. P-K4   P-Q3	    (4.	Kt-QB3 Kt-KB3)
Example ends: Undo or Jump or Clear