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A03d —
1.f4 d5 2.Nf3 g6 3.g3 Bg7 4.Bg2
Eval: [-0.31]
Les coups candidats
Ambassadeurs : Arnold, Robert G (75x), Becx, Cesar (15x), Noire, Eric (13x), Gretencord, Ulrich (11x), Schmidt, Torsten (11x), Bocharov, Ivan (10x), Panbukchian, Valentin (10x), Jakubiec, Artur (9x)
4…c5 — 18.0% (558 parties)
Ambassadeurs : Weisenburger, Horst (5x), Gonzalez Acosta, Bernal (5x), Danielsen, Henrik (4x), Grunberg, Mihai-Lucian (4x), Rendle, Thomas E (4x), Szymczak, Rafal (4x), Pletnev, Evgeniy (4x), Panbukchian, Valentin (4x)
4…c6 — 14.5% (448 parties)
Ambassadeurs : Jakubiec, Artur (7x), Grunberg, Mihai-Lucian (6x), Pogosian, Vladimir (6x), Becx, Cesar (6x), Muzychuk, Anna (5x), Noire, Eric (4x), Szelag, Marcin (4x), Praxmarer, Christian (4x)
4…Nh6 — 12.9% (399 parties)
Ambassadeurs : Arnold, Robert G (8x), Szymczak, Rafal (7x), Jakubiec, Artur (6x), Grunberg, Mihai-Lucian (5x), Pogosian, Vladimir (5x), Buecker, Stefan (4x), Rodriguez Vila, Andres (4x), Balashov, Yuri (4x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…Nf6 4…c5 4…c6 4…Nh6
<1800 59 58% 10% 15% 14%
1800-2200 1077 51% 21% 11% 11%
2200-2600 1449 43% 16% 18% 17%
2600+ 22 55% 9% 23% 14%
Évolution par décennie (% des parties)
Décennie N parties 4…Nf6 4…c5 4…c6 4…Nh6
1940s 1 100%
1950s 15 53% 27% 7% 7%
1960s 67 51% 22% 6% 7%
1970s 107 48% 22% 7% 11%
1980s 122 50% 23% 10% 7%
1990s 478 38% 22% 19% 10%
2000s 807 46% 17% 17% 14%
2010s 1237 51% 16% 13% 15%
2020s 260 55% 18% 13% 10%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…Nf6 51% 55% ▲ +3.5%
4…c5 16% 18% ▲ +2.5%
4…c6 13% 13% -0.3%
4…Nh6 15% 10% ▼ -4.7%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Aleksandr — 1 partie
Ju, Wenjun — 1 partie
Parties historiques
4…Nf6 — 47.8% (1480 parties)
1952 — Stoltz, De Raven vs Alexander, Conol Hugh — 1/2-1/2 — It Belgrade YUG
1954 — Pimenov, Serafim vs Ilivitsky, Georgy A — 1/2-1/2 — Erevan ARM
1955 — Larsen, Bent Ravn vs Hansen, Victor — 1-0 — Aalborg DEN
1956 — Liebert, Heinz vs Zirngibl, Albert — 1/2-1/2 — Leipzig ch GDR
1957 — Golz, Eloise vs Uhlmann, Alexander — 1/2-1/2 — Gotha
4…c5 — 18.0% (558 parties)
1949 — Markov, Bozidar vs Ivanov, Pavel — 0-1 — Sofia BUL
1954 — Basjuni, Sad Zaglul vs Stahlberg, Gideon — 0-1 — Prague CZE
1957 — Golz, Werner vs Uhlmann, Wolfgang — 1/2-1/2 — Gotha GER
1957 — Karau, Anita vs Keller-Hermann, Edith — 0-1 — Soemmerda
1959 — Acosta Fabian, Janna Paloma vs Jares, Jakub — 1/2-1/2 — Bratislava SVK
4…c6 — 14.5% (448 parties)
1953 — Stulik, Vlastimil vs Podgorny, Jiri — 1/2-1/2 — Prague CZE
1964 — Haag, Ervin vs San Martin Sanguinetti, Vicente — 1/2-1/2 — CCOL4 prel corr
1966 — Gresser, Gisela Kahn vs Larsen, Ingrid — 1/2-1/2 — Oberhausen
1967 — Tilstra, Arjen vs Van Ommen, A. — 0-1 — Beverwijk NED
1968 — Mozes, Ervin vs Ghizdavu, Dumitru — 1-0 — Bucharest ROU
4…Nh6 — 12.9% (399 parties)
1955 — Ratolistka, Josef vs Alster, Ladislav — 1/2-1/2 — Prague CZE
1960 — Kolvig, Bent vs Johansson, Martin 1979 — 1-0 — Leipzig GER
1966 — Schorr Blank, Leon vs Szabo, Laszlo — 0-1 — Havana CUB
1967 — Knezevic, Milorad vs Kovacevic, Vlatko — 1-0 — Kraljevo
1967 — Kirpichnikov, Vladimir vs Balashov, Yuri — 0-1 — Riga LAT