The Modern Benoni: 1.d4 Nf6 2.c4... 10.a4 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 Modern Benoni: 1.d4 Nf6 2.c4... 9.0-0. 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. At 1200 Elo, the top reply is Nbd7, played 24.6% of the time. There are 5 other moves seeing meaningful share, and 63.2% of games stick to established theory. Entropy: 2.95. By 2500, Bg4 dominates at 50.2% of replies; only 3 viable alternatives remain and 93.8% of moves are theory. Entropy drops to 1.77. That entropy collapse is the signature of a line where preparation pays off: at the top, players know the best move and play it.
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
- Playing outside main lines — At 400 Elo, only 0% of moves follow established theory — at 2000 that climbs to 90.8%. Most of the gap is players who pick a reasonable-looking move over the best one, and the position quietly drifts.
- 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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