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A03h — Bird (1920)
1.f4 d5 2.Nf3
Les coups candidats
Ambassadeurs : Arnold, Robert G (105x), Hayward, Keith (52x), Bester, Kazimierz (37x), Petro, Jozsef (36x), Heinola, Kari P. (32x), Abdi, Andreas (30x), Hanegby, Avigdor (27x), Krahl, Wolfgang (25x)
Ambassadeurs : Arnold, Robert G (134x), Jakubiec, Artur (32x), Roynet, Sylvie (31x), Becx, Cesar (27x), Bohn, Thomas, Dr. (25x), Schmidt, Torsten (23x), Noire, Eric (22x), Fister, Bernard (21x)
Ambassadeurs : Heinola, Kari P. (18x), Renard, Stephane (17x), Thonig, Manfred (14x), Panbukchian, Valentin (11x), Bergmann, Josef (10x), Leclerc, Luc-Olivier (9x), Petro, Jozsef (9x), Szymczak, Rafal (9x)
2…Nc6 — 5.9% (1493 parties)
Ambassadeurs : Richard, Andy (7x), Bester, Kazimierz (7x), Grunberg, Mihai-Lucian (5x), Berenguer, Bruno (4x), Neldner, Uta (4x), Pflug, Tanja, Dr. (4x), Kuhn, Alena (4x), Mitterbacher, Iris (4x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 2…Nf6 2…g6 2…c5 2…Nc6
<1800 2884 41% 17% 19% 11%
1800-2200 12227 43% 24% 18% 4%
2200-2600 4751 34% 42% 10% 2%
2600+ 59 32% 37% 10% 2%
Évolution par décennie (% des parties)
Décennie N parties 2…Nf6 2…g6 2…c5 2…Nc6
1950s 184 46% 33% 18% 1%
1960s 259 42% 37% 14% 3%
1970s 393 39% 35% 16% 3%
1980s 825 52% 24% 14% 3%
1990s 4131 45% 21% 17% 7%
2000s 8127 41% 25% 16% 7%
2010s 9202 40% 27% 15% 5%
2020s 2305 40% 27% 17% 5%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
2…Nf6 40% 40% -0.1%
2…g6 27% 27% ▼ -0.7%
2…c5 15% 17% ▲ +1.4%
2…Nc6 5% 5% -0.4%
Joueurs célèbres
Champions du monde dans cette position
Kramnik, Vladimir — 3 parties
Hou, Yifan — 3 parties
Karpov, Anatoly — 2 parties
Kasparov, Garry — 2 parties
Carlsen, Magnus — 2 parties
Gukesh D — 2 parties
Ju, Wenjun — 1 partie
Parties historiques
2…Nf6 — 41.5% (10559 parties)
1950 — Hopp, Asher vs Budrich, Edmund — 0-1 — Berlin GER
1950 — Eret, Jaroslav vs Ujtelky, Maximilián Samuel Rudolf — 0-1 — USSR
1950 — Eret, Miloslav vs Ujtelky, Maximilian — 0-1 — Zlin ch-CZE
1950 — Ragozin, Viacheslav vs Panov, Vasily — 1/2-1/2 — Ch URS (1/2 final), Kiev UKR
1950 — Von Baudissin, Georg Graf vs Lachmann, Hans G — 1-0 — Bielefeld
2…g6 — 25.7% (6522 parties)
1950 — Benderev, Yurij vs Tsvetkov, Alexandar K — 0-1 — Sofia BUL
1951 — Bahro, Tom vs Bertok, Mario Jr. — 1/2-1/2 — Sarajevo BIH
1951 — Bench Tut Tot vs Bajec, Ivo — 1/2-1/2 — Yugoslavia
1951 — Pillon, Rene vs Bos Pierre — 1-0 — ?
1951 — Milic, Borislav vs Aadhitha Karikalan — 1/2-1/2 — Ljubljana
2…c5 — 15.8% (4030 parties)
1950 — Sahlmann, Walter vs Staudte, Hans-Hilmar — 0-1 — Bad Pyrmont GER
1951 — Kostic, Boris vs Janosevic, Dragoljub — 1-0 — Ljubljana
1951 — Kostic, Boris vs Majstorovic, Ljubomir — 1-0 — Ljubljana
1952 — Bruce, Rowena M vs Heemskerk, Fenny — 0-1 — Moskou ct SN60/6
1952 — Sowinski, Jerzy vs Dworzynski, Roman — 1-0 — Katowice POL
2…Nc6 — 5.9% (1493 parties)
1957 — Franz, Joachim vs Schmidt, Hermann — 1-0 — Soemmerda
1958 — Dreyer, Kurt vs White, Gabriel — 1-0 — Munich GER
1960 — Collins, Richard vs Moppett, Arthur — 1-0 — Hayes
1962 — Hadziotis, Constantinos vs Prieto Sanabria, Ernesto — 0-1 — Varna BUL
1962 — Garces, Napoleon vs Lopez, Fernando — 0-1 — Pichincha