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A29l — Four Knights (1931)
1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3 Bc5 5.Bg2 d6 6.O-O
Les coups candidats
Ambassadeurs : McKlveen, Paul (11x), Vujadinovic, Milan (10x), Uhlmann, Wolfgang (8x), Zielinski, Sergej (7x), Smits, Mark (6x), Faber, Peter (6x), Adams, Michael (6x), Moman, Aaron (5x)
6…a6 — 12.8% (271 parties)
Ambassadeurs : Mikenas, Vladas (3x), Korneev, Oleg (3x), Gulko, Boris (2x), Alburt, Lev (2x), Haapasalo, Jukka-Pekka (2x), Spraggett, Kevin (2x), Contin, Daniel (2x), Kots, Yuri I (1x)
6…Be6 — 7.7% (163 parties)
Ambassadeurs : Ferriere, Patrick (2x), Benhamouda, Mathieu (2x), Carleton, Thomas (1x), Martin, Robert D (1x), Aarushi Ashok Mane (1x), Krug, Franz-Dieter (1x), Fulker, Chris (1x), Cateyo, Chen (1x)
6…Bg4 — 4.0% (85 parties)
Ambassadeurs : Ingerslev, Aage (2x), Bordas, Gyula (2x), ? (2x), Mendes, Silvio Luiz Teixeira (1x), Pinto Paiva, Jose (1x), Moguilevsky, M. (1x), Piazzini, Luis (1x), Karmaz, Peter (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6…O-O 6…a6 6…Be6 6…Bg4
<1800 251 67% 3% 16% 5%
1800-2200 737 71% 11% 7% 4%
2200-2600 637 69% 23% 1% 2%
2600+ 55 75% 25%
Évolution par décennie (% des parties)
Décennie N parties 6…O-O 6…a6 6…Be6 6…Bg4
1950s 4 25% 25% 25%
1960s 9 44% 22% 11% 22%
1970s 23 70% 9% 13% 4%
1980s 42 74% 2% 12% 7%
1990s 305 67% 10% 10% 4%
2000s 603 68% 10% 11% 5%
2010s 959 71% 15% 4% 3%
2020s 178 58% 19% 8% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6…O-O 71% 58% ▼ -12.8%
6…a6 15% 19% ▲ +4.4%
6…Be6 4% 8% ▲ +4.2%
6…Bg4 3% 3% -0.1%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 7 parties
Carlsen, Magnus — 2 parties
Tal, Mikhail — 1 partie
Anand, Viswanathan — 1 partie
Parties historiques
6…O-O — 68.6% (1457 parties)
1951 — Gondim, Jose Adail vs Salamuni R — 1/2-1/2 — Fortaleza BRA
1961 — Savon, Vladimir vs Veresov, Gavriil — 1/2-1/2 — URS-ch29 sf Novgorod
1961 — Pachman, Ludek vs Darga, Klaus — 1/2-1/2 — Graz AUT
1963 — Sokolov, Vladimir vs Nikolic, Stanimir — 0-1 — Zenica ch YUG
1965 — Abramov, Roman vs Liebert, Heinz — 1-0 — Berlin East
6…a6 — 12.8% (271 parties)
1958 — Krutyansky, Andrey vs Mikenas, Vladas — 1-0 — Moscow RUS
1961 — Peterson, Andrejs vs Mikenas, Vladas — 1-0 — Palanga
1962 — Kots, Yuri I vs Mikenas, Vladas — 1/2-1/2 — Erevan ch-URS
1974 — Andersen, Borge vs Garcia Gonzales, Guillermo — 1/2-1/2 — Nice olm fin-B
1974 — Roze, Janis vs Gorelov, Sergey G — 0-1 — Tallinn EST
6…Be6 — 7.7% (163 parties)
1967 — Carleton, Thomas vs Martin, Robert D — 1-0 — Ottawa CAN
1975 — Kopczak, L. vs Gotzhein — 1/2-1/2 — corr DDR
1976 — Aarushi Ashok Mane vs Krug, Franz-Dieter — 1-0 — DDR-Cup4 sf09 corr
1976 — Filip, Miroslav vs Packroff, Hermann — 1/2-1/2 — Telc
1983 — Fulker, Chris vs Cateyo, Chen — 1-0 — Vancouver BC CAN
6…Bg4 — 4.0% (85 parties)
1959 — Moguilevsky, M. vs Piazzini, Luis — 1-0 — Buenos Aires ARG
1967 — Karmaz, Peter vs Hodgson, Julian M — 1-0 — Oxford ch-BCF U16
1968 — Mendes, Silvio Luiz Teixeira vs Pinto Paiva, Jose — 0-1 — Sao Bernardo
1973 — Garcia, Eder Raimundo vs Cuasnicu, Oscar — 0-1 — Buenos Aires ARG
1984 — Ingerslev, Aage vs Nielsen, Aage Sondergaard — 0-1 — DK ch corr