Chess Board
[ECO code A52]
BUDAPEST DEFENCE
to Smothered Mate (via Adler Var.)
Black set his QKt to double an attack on the K5(e5) pawn, reserving KB options for a smothered mate.
White usually deploys his Queen's Bishop to KB4(f4), the Rubinstein move doubling his K5P defence.
    White  Black	White  Black
 1. P-Q4   Kt-KB3    5.	B-B4
 2. P-QB4  P-K4
 3. PxP    Kt-Kt5
 4. Kt-KB3 Kt-QB3   Main 5W,4W route
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