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A50m — Queen’s Indian Accelerated
1.d4 Nf6 2.c4 b6 3.Nc3 Bb7
Les coups candidats
Ambassadeurs : Gruenfeld, Ernst (9x), Simonian, Hrair (8x), Iturrizaga Bonelli, Eduardo (8x), Reti, Richard (7x), Langheld Werner (7x), Alekhine, Alexander (5x), Planinec, Albin (5x), Erwich, Marc (5x)
4.Nf3 — 23.5% (789 parties)
Ambassadeurs : Mamedyarov, Shakhriyar (8x), Hoang, Thi Nhu Y (5x), Salgado Lopez, Ivan (5x), Reti, Richard (4x), Peptan, Corina-Isabela (4x), Molander, Riku (4x), Stuhr, Finn (4x), Ikeda, Junta (4x)
4.f3 — 18.2% (610 parties)
Ambassadeurs : Simonian, Hrair (7x), Planinec, Albin (3x), Pedersen, Erik (3x), Iturrizaga Bonelli, Eduardo (3x), Duchamp, Marcel (2x), Chekhover, Vitaly (2x), Tartakower, Savielly (2x), Tolush, Alexander V (2x)
4.d5 — 13.8% (462 parties)
Ambassadeurs : Planinec, Albin (6x), Hamitevici, Vladimir (6x), Sahovic, Dragutin (5x), Tomilova, Elena (5x), Dizdarevic, Emir (4x), Goltseva, Ekaterina (4x), Vasilevich, Tatjana (4x), Stuhr, Finn (3x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4.Qc2 4.Nf3 4.f3 4.d5
<1800 123 18% 31% 11% 6%
1800-2200 1089 24% 27% 20% 11%
2200-2600 1484 35% 20% 18% 18%
2600+ 83 47% 19% 19% 5%
Évolution par décennie (% des parties)
Décennie N parties 4.Qc2 4.Nf3 4.f3 4.d5
1910s 2 50%
1920s 61 69% 13% 5% 5%
1930s 52 50% 10% 35% 2%
1940s 11 45% 18% 18% 18%
1950s 18 22% 22% 28% 17%
1960s 20 35% 25% 20% 15%
1970s 94 33% 15% 22% 16%
1980s 101 31% 21% 18% 23%
1990s 327 17% 31% 18% 14%
2000s 632 17% 29% 20% 13%
2010s 1407 32% 24% 18% 12%
2020s 634 39% 18% 16% 18%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4.Qc2 32% 39% ▲ +7.1%
4.Nf3 24% 18% ▼ -6.0%
4.f3 18% 16% ▼ -2.1%
4.d5 12% 18% ▲ +5.5%
Joueurs célèbres
Champions du monde dans cette position
Alekhine, Alexander — 8 parties
Euwe, Max — 6 parties
Botvinnik, Mikhail — 4 parties
Hou, Yifan — 2 parties
Anand, Viswanathan — 2 parties
Carlsen, Magnus — 2 parties
Smyslov, Vladimir — 1 partie
Kasparov, Garry — 1 partie
Ju, Wenjun — 1 partie
Gukesh D — 1 partie
Parties historiques
4.Qc2 — 29.9% (1005 parties)
1921 — Teichmann, Richard vs Alekhine, Alexander — 1-0 — Berlijn m
1922 — Saemisch, Friedrich vs Reti, Richard — 1-0 — Berlin GER
1922 — Alekhine, Alexander vs Koenig, Imre — 1-0 — Vienna AUT
1923 — Seitz, Jakob Adolf vs Vecsey, Zoltan — 1-0 — Trieste
1923 — Saemisch, Friedrich vs Nimzovitch, Aaron — 0-1 — Carlsbad CZE
4.Nf3 — 23.5% (789 parties)
1912 — Teichmann, Richard vs Důras, Oldřich — 0-1 — San Sebastian ESP
1925 — Reti, Richard vs Bluemich, Max — 1/2-1/2 — Breslau GER
1925 — Reti, Richard vs Marshall, Frank — 1-0 — Baden-Baden GER
1925 — Reti, Richard vs Marshall Viele, Fabrizio Aaron — 1-0 — Baden-Baden GER
1925 — Gruenfeld, Ernst vs Reti, Richard — 1/2-1/2 — Breslau GER
4.f3 — 18.2% (610 parties)
1923 — Hamond, Francis Edward vs Uber, Henry Bernard — 1-0 — Southsea
1928 — Gibaud, Amedee vs Duchamp, Marcel — 1-0 — Marseille FRA
1929 — Bogoljubow, Efim vs Alekhine, Alexander — 0-1 — Deutschland/Niederlande
1930 — Stahlberg, Gideon vs Andersen, Erik — 1/2-1/2 — Stockholm SWE
1931 — Rejfir, Josef vs Berndtsson, Karl — 0-1 — Prague ol Prague CZE
4.d5 — 13.8% (462 parties)
1920 — Bogoljubow, Efim vs Olson, Anton — 1-0 — Stockholm SWE
1925 — Hofmann, EJ vs May, Desider — 1-0 — Bratislava SVK
1925 — Alekhine, Alexander vs C Bekink — 1/2-1/2 — Nijmegen NED
1930 — Naegeli, Oskar vs Canelon Leal, Genesis Amatis — 0-1 — Lausanne SUI
1946 — Szabo, Ladislav vs Bakonyi, Elek — 1-0 — Budapest HUN