Benoni Defense: Semi-Benoni position after 1.d4 c5 2.d5 e5 3.e4 d6. White: pawn on d5, pawn on e4, pawn on a2, pawn on b2, pawn on c2, pawn on f2, pawn on g2, pawn on h2, rook on a1, knight on b1, bishop on c1, queen on d1, king on e1, bishop on f1, knight on g1, rook on h1. Black: rook on a8, knight on b8, bishop on c8, queen on d8, king on e8, bishop on f8, knight on g8, rook on h8, pawn on a7, pawn on b7, pawn on f7, pawn on g7, pawn on h7, pawn on d6, pawn on c5, pawn on e5.
Benoni Defense: Semi-Benoni is a chess opening that arises after 1.d4 c5 2.d5 e5 3.e4 d6. It is classified A44 in the ECO system, and the position after these moves has white to move. The Benoni meets 1.d4 with an immediate flank strike, usually reaching the Modern Benoni structure after 3.d5 e6 4.Nc3 exd5 5.cxd5 d6. Black takes a permanent structural concession in exchange for the half-open e-file and a queenside pawn majority.
Strategic character
Highly unbalanced. White has a protected passed pawn on d5 and a central space advantage, while Black plays for ...b5 and pressure down the long diagonal. Objectively risky, but it generates winning chances against opponents who play for a draw.
Who should play it
Aggressive players who need to win with Black and accept theoretical risk to do it.
This line is a variation within the Benoni Defense family. The strategic ideas above describe the family as a whole; this particular line reaches them by the move order 1.d4 c5 2.d5 e5 3.e4 d6.
Frequently asked questions
What is the Benoni Defense: Semi-Benoni?
The Benoni Defense: Semi-Benoni is a chess opening that arises after 1.d4 c5 2.d5 e5 3.e4 d6. It is classified A44 in the ECO system. The Benoni meets 1.d4 with an immediate flank strike, usually reaching the Modern Benoni structure after 3.d5 e6 4.Nc3 exd5 5.cxd5 d6. Black takes a permanent structural concession in exchange for the half-open e-file and a queenside pawn majority.
What are the moves of the Benoni Defense: Semi-Benoni?
1.d4 c5 2.d5 e5 3.e4 d6. After these moves it is white to move.
Is the Benoni Defense: Semi-Benoni good for beginners?
Aggressive players who need to win with Black and accept theoretical risk to do it.