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A50m — Queen’s Indian Accelerated (1912)
1.d4 Nf6 2.c4 b6 3.Nc3 Bb7
Les coups candidats
Ambassadeurs : Simonian, Hrair (7x), Blittkowsky, Ralf (6x), Planinec, Albin (5x), Erwich, Marc (5x), Oleksak, Andrzej (5x), Sahovic, Dragutin (4x), Horn, Pascal (4x), Sitnik, Igor (4x)
4.Nf3 — 23.7% (845 parties)
Ambassadeurs : Mamedyarov, Shakhriyar (8x), Stupak, Leonid K (5x), Molander, Riku (4x), Salgado Lopez, Ivan (4x), Volf, Jaroslav (3x), Petersen, Wolfgang (3x), Dardha, Daniel (3x), Freeman, Michael A (2x)
4.f3 — 17.9% (638 parties)
Ambassadeurs : Simonian, Hrair (4x), Van Geet, Dirk Daniel (3x), Steiner, Lajos (2x), Naranja, Renato (2x), Knaak, Rainer (2x), Planinec, Albin (2x), Pedersen, Erik (2x), Tyshler, Larion (2x)
4.d5 — 13.8% (493 parties)
Ambassadeurs : Planinec, Albin (6x), Sahovic, Dragutin (5x), Hamitevici, Vladimir (5x), Goltseva, Ekaterina (4x), Edouard, Romain (3x), Tarasov, Vitaly (2x), Keene, Raymond D (2x), Schroer, Jonathan (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4.Qc2 4.Nf3 4.f3 4.d5
<1800 247 19% 30% 11% 8%
1800-2200 1357 26% 26% 20% 12%
2200-2600 1550 36% 20% 18% 17%
2600+ 77 47% 21% 16% 5%
Évolution par décennie (% des parties)
Décennie N parties 4.Qc2 4.Nf3 4.f3 4.d5
1950s 18 22% 22% 28% 17%
1960s 20 35% 25% 20% 15%
1970s 93 32% 15% 23% 16%
1980s 100 30% 21% 18% 23%
1990s 327 17% 31% 18% 14%
2000s 633 17% 29% 20% 13%
2010s 1438 32% 24% 18% 12%
2020s 940 39% 19% 16% 16%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4.Qc2 32% 39% ▲ +7.2%
4.Nf3 24% 19% ▼ -5.0%
4.f3 18% 16% ▼ -2.1%
4.d5 12% 16% ▲ +4.0%
Joueurs célèbres
Champions du monde dans cette position
Anand, Viswanathan — 2 parties
Hou, Yifan — 2 parties
Ju, Wenjun — 2 parties
Carlsen, Magnus — 2 parties
Kasparov, Garry — 1 partie
Gukesh D — 1 partie
Parties historiques
4.Qc2 — 29.8% (1065 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
1959 — Rejfir, Josef vs Krylov, Pavel — 1/2-1/2 — Trebic
1961 — Wolthuis, Willem vs Crabbendam, Hans — 0-1 — Amsterdam NED
4.Nf3 — 23.7% (845 parties)
1953 — Weiss, Martin vs Gonzalez, Gerardo — 1-0 — Bariloche
1954 — Volpert, Larisa vs Kakabadze, Eliso — 1/2-1/2 — Riga LAT
1957 — Jones, Homer W vs Durkin, Robert — 1-0 — East Orange
1958 — Fridstein, Grigory vs Simagin, Vladimir — 0-1 — Moscow RUS
1965 — Ernst, Rolf vs Zawadzinski — 1-0 — Ennigerloh
4.f3 — 17.9% (638 parties)
1954 — Tornerup, John vs Aarflot, Morten — 1-0 — Copenhagen AS04 jub
1954 — Von Ahlefeldt vs Lunners — 1-0 — Hamburg GER
1956 — Rossetto, Hector vs Isain, Pedros Santos — 1-0 — Montevideo URU
1959 — Klass, Harry vs Steiner, Lajos — 1/2-1/2 — Sydney AUS
1959 — Purdy, John S vs Steiner, Lajos — 0-1 — Sydney AUS
4.d5 — 13.8% (493 parties)
1952 — Ehlen, Jan vs Kupers, MC. — 1-0 — Netherlands tt
1958 — Shamkovich, Leonid vs Tarasov, Vitaly — 1/2-1/2 — Sochi RUS
1958 — Furman, Semyon vs Tarasov, Vitaly — 1-0 — Sochi RUS
1961 — Kolvig, Bent vs Moller, Per — 1-0 — Copenhagen DEN
1962 — Blom, Kaj vs Soby, Frode — 0-1 — Copenhagen DEN