Starting from 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3, players enter the King's Indian Defense: Normal Variation, Deferred Fianchetto — ECO E62. Across rating levels it shows up in 684,675 recorded games — enough data to map exactly where it succeeds and where it stalls.
History and Notable Players
It arises from the King's Indian Defense. Among the most prolific White practitioners are Dragisa Blagojevic (10 games), Milen Vasilev (9 games), Leonid Sandler (9 games). Black-side regulars include Vladislav Nevednichy (9 games), Alexei Fedorov (6 games), Eugenio Torre (6 games).
Performance Across Rating Levels
The picture changes a lot as you climb the rating ladder. Among 1200-rated players, it appears in 0.00% of games — 17,425 of them on record — with White winning 50.1% and Black 45.9%. At 1800 the opening surfaces in 0.02% of games; White wins 50.2%, Black 44.3%, draws 5.5%. At 2500, 0.07% of games go into this opening; draws sit at 9.7% — the line is well-mapped at this level. Positions also become less sharp as level rises (sharpness 0.96 → 0.90).
Time Control Patterns
The King's Indian Defense: Normal Variation, Deferred Fianchetto skews toward bullet chess. In bullet, it appears in 0.02% of games (572,168); White wins 50.2%. Blitz shows 0.02% adoption across 606,816 games, White scoring 50%. In rapid, the share rises to 0.01% — 76,408 games, White 50.2%.
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 O-O, played 69.8% of the time. There are 3 other moves seeing meaningful share, and 84.6% of games stick to established theory. Entropy: 1.77. By 2500, O-O dominates at 94.9% of replies; only 1 viable alternatives remain and 97.6% of moves are theory. Entropy drops to 0.43. That entropy collapse is the signature of a line where preparation pays off: at the top, players know the best move and play it.
Historical Trends
Long-term, the trajectory of this opening is informative. Adoption peaked in 2020 at 0.02% (94,728 games). By 2025 it sits at 0.01% — a 64% shift overall, leaving the line on the rise.
Main Lines and Variations
From the position after 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3, the recognised continuations are:
- King's Indian Defense: Averbakh Variation, Benoni Defense
- King's Indian Defense: Petrosian Variation, Keres Defense
- King's Indian Defense: Fianchetto Variation, Panno Variation
Each branch leads to a different middlegame character — the resulting pawn structure decides what kind of game you get.
Common Mistakes
- Drifting away from main theory — At 400 Elo, theory adherence sits at 82.9% — versus 93.7% at 2000. The most popular deviation is Bg4 (played 8% of the time at 400, much less so up top). It looks fine but quietly hands the better-prepared side an edge.
- 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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