Chess Board
[ECO code E10] Move Move Here
BENONI SYS. - Blumenfeld Ctr. Gambit
The Rubinstein Variation

Black's counter QKtP gambit strategy (his KP left in place for a strong P centre) challenged White's QBP.
White declines the gambit (best), but here advances his King's Pawn to a sacrificial K4(e4) to free his KB and open up the K-side for an attack. W-Alt.
    White  Black	White  Black
 1. P-Q4   Kt-KB3    5.	P-K4
 2. P-QB4  P-K3
 3. Kt-KB3 P-B4
 4. P-Q5   P-QKt4

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