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A50n — Queen’s Indian Accelerated
1.d4 Nf6 2.c4 b6 3.Nc3 Bb7 4.Qc2
Les coups candidats
4…d5 — 61.2% (620 parties)
Ambassadeurs : Simonian, Hrair (8x), Iturrizaga Bonelli, Eduardo (7x), Moiseenko, Vadim An. (5x), Romanov, Egor (5x), Tomilova, Elena (5x), Gruenfeld, Ernst (4x), Reti, Richard (4x), Planinec, Albin (4x)
4…e6 — 22.5% (228 parties)
Ambassadeurs : Langheld Werner (4x), Botvinnik, Mikhail (3x), Alekhine, Alexander (3x), Gruenfeld, Ernst (3x), Polajzer, Danilo (3x), Narr, Irmgard (3x), Bortnyk, Olexandr (3x), Kostic, Boris (2x)
4…d6 — 5.3% (54 parties)
Ambassadeurs : Oleksak, Andrzej (4x), Euwe, Max (2x), Epishin, Vladimir (2x), Seitz, Jakob Adolf (1x), Vecsey, Zoltan (1x), Fuster, Geza (1x), Friedmann Henryk (1x), Shories (1x)
4…Nc6 — 5.1% (52 parties)
Ambassadeurs : Erdogmus, Yagiz Kaan (4x), Erigaisi Arjun (3x), Saemisch, Friedrich (2x), Chekhover, Vitaly (1x), Savitsky, Leonid (1x), Teichmann, Richard (1x), Alekhine, Alexander (1x), Nimzovitch, Aaron (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…d5 4…e6 4…d6 4…Nc6
<1800 22 27% 55% 9%
1800-2200 270 52% 29% 7% 5%
2200-2600 526 74% 15% 3% 4%
2600+ 39 69% 13% 8% 8%
Évolution par décennie (% des parties)
Décennie N parties 4…d5 4…e6 4…d6 4…Nc6
1920s 42 36% 33% 14% 10%
1930s 26 27% 50% 8% 12%
1940s 5 60% 20%
1950s 4 75% 25%
1960s 7 57% 29%
1970s 31 74% 10% 3%
1980s 31 42% 39% 3% 6%
1990s 56 52% 32% 4% 5%
2000s 110 39% 38% 5% 7%
2010s 451 67% 20% 6% 2%
2020s 250 72% 12% 3% 10%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…d5 67% 72% ▲ +5.4%
4…e6 20% 12% ▼ -8.4%
4…d6 6% 3% ▼ -2.3%
4…Nc6 2% 10% ▲ +7.8%
Joueurs célèbres
Champions du monde dans cette position
Alekhine, Alexander — 5 parties
Botvinnik, Mikhail — 4 parties
Euwe, Max — 4 parties
Anand, Viswanathan — 2 parties
Smyslov, Vladimir — 1 partie
Kasparov, Garry — 1 partie
Parties historiques
4…d5 — 61.2% (620 parties)
1922 — Alekhine, Alexander vs Koenig, Imre — 1-0 — Vienna AUT
1925 — Vukovic, Vladimir vs Gruenfeld, Ernst — 1/2-1/2 — Debrecen HUN
1925 — Gothilf, Solomon Borisovich vs Rabinovich, Ilya Mar — 0-1 — Moscow RUS
1925 — Zabodrocky, Ernest vs Reti, Richard — 0-1 — Bratislava SVK
1925 — Gruenfeld, Ernst vs Reti, Richard — 1-0 — Moscow RUS
4…e6 — 22.5% (228 parties)
1923 — Alekhine, Alexander vs Adonyo Moses — 1-0 — Portsmouth
1925 — Rubinstein, Akiba vs Janowski, Dawid — 1-0 — Marienbad CZE
1925 — Botvinnik, Mikhail vs Schebarschin M — 1-0 — Leningrad 1st cat
1926 — Kostic, Boris vs Mueller, Hans — 1-0 — Bardejov
1926 — Antze, Oskar vs Duhm, Andreas — 1-0 — Hannover GER
4…d6 — 5.3% (54 parties)
1923 — Seitz, Jakob Adolf vs Vecsey, Zoltan — 1-0 — Trieste
1925 — Euwe, Max vs Shories — 1/2-1/2 — Berlin GER
1925 — Schories, Georg vs Euwe, Max — 1/2-1/2 — Wiesbaden GER
1926 — Platz, Joseph vs Schiefer, Heinrich — 1/2-1/2 — Cologne GER
1926 — Gruenfeld, Ernst vs Tarrasch, Siegbert — 1-0 — Semmering AUT
4…Nc6 — 5.1% (52 parties)
1921 — Teichmann, Richard vs Alekhine, Alexander — 1-0 — Berlijn m
1923 — Saemisch, Friedrich vs Nimzovitch, Aaron — 0-1 — Carlsbad CZE
1923 — Saemisch, Friedrich vs Nimzowitsch, Aron — 0-1 — Carlsbad CZE
1929 — Przepiorka, Dawid vs Canal, Esteban — 1/2-1/2 — Budapest HUN
1931 — McIntosh, Leo vs Sayers, James — 0-1 — Melbourne AUS