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A50n — Queen’s Indian Accelerated (1922)
1.d4 Nf6 2.c4 b6 3.Nc3 Bb7 4.Qc2
Les coups candidats
4…d5 — 63.4% (680 parties)
Ambassadeurs : Simonian, Hrair (7x), Planinec, Albin (4x), Sahovic, Dragutin (4x), Horn, Pascal (4x), Barle, Janez (4x), Sitnik, Igor (4x), Erwich, Marc (4x), Iturrizaga Bonelli, Eduardo (4x)
4…e6 — 20.3% (218 parties)
Ambassadeurs : Polajzer, Danilo (3x), Narr, Irmgard (3x), David, Alberto (2x), Bortnyk, Olexandr (2x), Lengyel, Levente (1x), Laszlo, Deli (1x), Cruz, Orlando (1x), Barbier, Wayan (1x)
4…Nc6 — 6.2% (66 parties)
Ambassadeurs : Erdogmus, Yagiz Kaan (3x), Mohamed Anees M (2x), Hofmann, EJ (1x), Mueller, Frank J (1x), Gleichmann, Matthias (1x), Muller, Hans P (1x), Schmitthoefer, Herbert (1x), Mathofer, Kurt (1x)
4…d6 — 4.5% (48 parties)
Ambassadeurs : Oleksak, Andrzej (4x), Cekro, Ekrem (2x), Porath, Yosef (1x), Aloni, Itzchak (1x), Rejfir, Josef (1x), Krylov, Pavel (1x), De Souza Mendes, Joao (1x), Rodrigues, Luiz Carlos Donato (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…d5 4…e6 4…Nc6 4…d6
<1800 47 49% 36% 2% 4%
1800-2200 352 57% 26% 5% 6%
2200-2600 566 72% 14% 7% 3%
2600+ 36 64% 11% 8% 8%
Évolution par décennie (% des parties)
Décennie N parties 4…d5 4…e6 4…Nc6 4…d6
1950s 4 75% 25%
1960s 7 57% 29%
1970s 30 77% 10% 3%
1980s 30 40% 40% 7% 3%
1990s 56 52% 32% 5% 4%
2000s 110 39% 38% 7% 5%
2010s 464 66% 21% 2% 6%
2020s 372 70% 12% 12% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…d5 66% 70% ▲ +3.8%
4…e6 21% 12% ▼ -8.9%
4…Nc6 2% 12% ▲ +10.4%
4…d6 6% 2% ▼ -3.2%
Joueurs célèbres
Champions du monde dans cette position
Anand, Viswanathan — 2 parties
Kasparov, Garry — 1 partie
Ju, Wenjun — 1 partie
Parties historiques
4…d5 — 63.4% (680 parties)
1966 — Edelman, Daniel vs Eretova, Kveta — 0-1 — USSR
1967 — Gligorić, Svetozar vs Larsen, Bent Ravn — 0-1 — Palma de Majorca ESP
1968 — Borisenko, Georgy K vs Ruderfer, Mark B — 1/2-1/2 — ?
1969 — Gligoric, Sofija vs Sahovic, Dragutin — 1-0 — Belgrade SRB
1970 — Barle, Janez vs Panchenko, Alexander N — 0-1 — Sukhumi GEO
4…e6 — 20.3% (218 parties)
1952 — Cruz, Orlando vs Barbier, Wayan — 1-0 — Helsinki olm
1956 — Jensen, Henning vs Brage, Jorgen — 1-0 — Nyborg
1958 — Lengyel, Levente vs Laszlo, Deli — 1/2-1/2 — Budapest HUN
1971 — Dieks, Roy G vs Cox, David — 1-0 — Athens GRE
1976 — Tarjan, James vs Planinec, Albin — 0-1 — Majdanpek
4…Nc6 — 6.2% (66 parties)
1988 — Hofmann, EJ vs Mueller, Frank J — 1/2-1/2 — DDR corr
1988 — Gleichmann, Matthias vs Muller, Hans P — 1-0 — corr ch-DDR
1990 — Rodriguez Izquierdo, Benjamin vs Velasco Valentin, Leopoldo — 1-0 — Valladolid
1992 — Wibom, Jan vs Gonzalez, Enrique — 1/2-1/2 — ?
1997 — Schmitthoefer, Herbert vs Mathofer, Kurt — 1-0 — GER
4…d6 — 4.5% (48 parties)
1959 — Rejfir, Josef vs Krylov, Pavel — 1/2-1/2 — Trebic
1964 — De Souza Mendes, Joao vs Rodrigues, Luiz Carlos Donato — 1-0 — Rio de Janeiro BRA
1967 — Porath, Yosef vs Aloni, Itzchak — 1-0 — Israel
1973 — Baumbach, Friedrich, Dr. vs Spitzlsperger, Gerhard — 1-0 — ?
1986 — Monin, Nikolay vs Kengis, Edvins — 1/2-1/2 — Pinsk