Starting from 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 7.0-0 Nc6 8.a3 dxc4 9.Bxc4 cxd4, players enter the Nimzo-Indian Defense: Normal Variation, Gligoric System, Bernstein Defense (8...dxc4 9.Bxc4 cxd4) — ECO E57. Across rating levels it shows up in 2,842 recorded games — enough data to map exactly where it succeeds and where it stalls.
History and Notable Players
It arises from the Nimzo-Indian Defense: Normal Variation, Gligoric System, Bernstein Defense. Among the most prolific White practitioners are Miguel Najdorf (2 games), Grigory Abramovich Goldberg (2 games), Alexandru Crisan (1 games). Black-side regulars include Branimir Maksimovic (1 games), Alberic O'Kelly de Galway (1 games), Jozef Puobis (1 games).
Move Diversity and Theory Depth
What players actually play after the opening moves depends heavily on rating. Below 1600 the samples are small (4 games at 1200, 37 at 1400), so the comparison starts at 1600, with 229 games. There, the top reply is exd4, played 54.6% of the time. Two other moves each take at least 5% of games, and the top three moves account for 99.6% of games. Entropy: 1.46. By 2200 (682 games), exd4 dominates at 56.9% of replies; only one other move still reaches 5% and the top three moves account for 99.9% of games. Entropy drops to 1.09.
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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