The Benoni Defense: Classical Variation, Full Line begins with 1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 0-0 9.0-0 a6 10.a4 (ECO A74). Lichess records 41,814 games in this line, which gives us a reliable view of how it actually performs in practice.
History and Notable Players
It arises from the Benoni Defense: Classical Variation, Main Line. Among the most prolific White practitioners are Svetozar Gligoric (10 games), Alexander G Beliavsky (5 games), Wlodzimierz Schmidt (5 games). Black-side regulars include Roi Reinaldo Castineira (7 games), Milos Pavlovic (4 games), Lawrence A Day (4 games).
Move Diversity and Theory Depth
Looking at move selection shows how forcing — or not — the position really is. Below 1400 the samples are small (60 games at 1200), so the comparison starts at 1400, with 343 games. There, the top reply is Nbd7, played 35.3% of the time. Three other moves each take at least 5% of games, and the top three moves account for 80.6% of games. Entropy: 2.36. By 2500 (761 games), Bg4 takes over as the top reply at 50.2%; only two other moves still reach 5% and the top three moves account for 93.8% of games. Entropy drops to 1.77. The narrowing is significant — strong players consolidate around a small set of best moves, while amateurs scatter across many plausible-looking options.
Main Lines and Variations
After 1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 0-0 9.0-0 a6 10.a4, the established follow-ups are:
Each branch leads to a different middlegame character — the resulting pawn structure decides what kind of game you get.
Common Mistakes
- Neglecting development — It can feel productive to make extra pawn moves early, but falling behind in piece development is what loses most amateur games — especially in open positions where active pieces find squares fast.
- Letting White own the centre — Hypermodern openings concede central space on purpose, but only if you strike back in time. Delay the counter-blow and you end up squeezed.
Practice on Chessiverse
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