The King's Indian Defence, Sämisch Variation: 1.d4 Nf6 2.c4... Rb8 begins with 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 0-0 6.Be3 Nc6 7.Nge2 a6 8.Qd2 Rb8 (ECO E84). Across rating levels it shows up in 41,668 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 Defence, Sämisch Variation: 1.d4 Nf6 2.c4... Nc6. On the White side, Jacob Murey (14 games), Margeir Petursson (12 games), Yuri S Razuvaev (12 games) top the database. Notable Black exponents: John D M Nunn (22 games), Heikki MJ Westerinen (18 games), Alexei Fedorov (16 games).
Performance Across Rating Levels
How well the King's Indian Defence, Sämisch Variation: 1.d4 Nf6 2.c4... Rb8 works depends on what level you're playing at. The 1200 bracket has 3 games (0.00% of all games at that level); White wins 66.7%, Black 33.3%, 0% are drawn. By 1800, popularity is 0.00% and White's score is 45.8% to Black's 49.3%. Among 2500-rated players the line appears in 0.02% of games and draws spike to 9%, indicating tight preparation. White's edge erodes by 17.4pp from 1200 to 2500 Elo, suggesting Black's counterplay is easier to find with experience.
Move Diversity and Theory Depth
Move choice is far from uniform in the King's Indian Defence, Sämisch Variation: 1.d4 Nf6 2.c4... Rb8. At 1200 Elo, the top reply is Ng3, played 33.3% of the time. There are 3 other moves seeing meaningful share, and 100% of games stick to established theory. Entropy: 1.58. By 2500, Rc1 dominates at 32.9% of replies; only 6 viable alternatives remain and 67.8% of moves are theory. Entropy drops to 2.79. Even elite players don't fully agree on the best continuation here, which keeps the position dynamic.
Common Mistakes
- Playing outside main lines — At 400 Elo, only 0% of moves follow established theory — at 2000 that climbs to 45.2%. Most of the gap is players who pick a reasonable-looking move over the best one, and the position quietly drifts.
- 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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