1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4 opens the Benoni Defense: Pawn Storm Variation, ECO A66. Across rating levels it shows up in 283,132 recorded games — enough data to map exactly where it succeeds and where it stalls.
History and Notable Players
It arises from the Benoni Defense: King's Pawn Line. On the White side, Ivan Farago (16 games), Viktor Moskalenko (15 games), Evarth Kahn (13 games) top the database. Notable Black exponents: Levan Pantsulaia (18 games), Pavel Simacek (18 games), Slobodan Kovacevic (16 games).
Performance Across Rating Levels
How well the Benoni Defense: Pawn Storm Variation works depends on what level you're playing at. The 1200 bracket has 324 games (0.00% of all games at that level); White wins 51.5%, Black 46.6%, 1.9% are drawn. By 1800, popularity is 0.01% and White's score is 48.8% to Black's 47.3%. At 2500, 0.06% of games go into this opening; draws sit at 7% — the line is well-mapped at this level. Positions also become less sharp as level rises (sharpness 0.98 → 0.93).
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 Bg7, played 85.5% of the time. There are 2 other moves seeing meaningful share, and 95.4% of games stick to established theory. Entropy: 0.93. By 2500, Bg7 dominates at 96.6% of replies; only 1 viable alternatives remain and 98.7% of moves are theory. Entropy drops to 0.29. 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
From the position after 1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4, the recognised continuations are:
Each branch leads to a different middlegame character — the resulting pawn structure decides what kind of game you get.
Common Mistakes
- Neglecting development — Extra pawn moves in the opening are tempting, especially when you "know the moves". Developing a piece each turn is the simple correction.
- 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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