A02u — Bird (1932)
1.f4 g6 2.Nf3 Bg7 3.e3
Les coups candidats
3…d6 — 30.6% (303 parties)
Ambassadeurs : Gadia, Olicio (3x), Blatny, Pavel (3x), Delaunay, Sebastien (3x), Kulbacki, James (2x), Swanson, Stephen (2x), Markovic, Igor (2x), Heinola, Kari P. (2x), Hanegby, Avigdor (2x)
3…c5 — 25.1% (248 parties)
Ambassadeurs : Heinola, Kari P. (5x), Zakic, Srdjan (2x), Kjeldsen, Torben (2x), Reim, Gerd (2x), Bellin, Robert (2x), Wesnigk, Karl-Heinz (2x), Draftian, Ashote (2x), Metras, Dominique (1x)
3…Nf6 — 22.1% (219 parties)
Ambassadeurs : Puls, Thomas (2x), Ledger, Stephen C (2x), De Coverly, Roger D (2x), Heinola, Kari P. (2x), Schmidt-Schaeffer, Sebastian, Dr. (2x), Aufmwasser, Guenter (2x), Kjeldsen, Torben (1x), Larsen, Bent (1x)
3…d5 — 15.1% (149 parties)
Ambassadeurs : Hentschel, E. (3x), Bester, Kazimierz (3x), Reed, Duncan W (2x), Durst, Uwe (2x), Lorenzmeier, Wilhelm (2x), Yushinov, Nikolay (2x), Donnelly, Mike J Dr (1x), Donnelly, Michael (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 3…d6 3…c5 3…Nf6 3…d5
<1800 86 24% 14% 30% 21%
1800-2200 535 30% 28% 22% 13%
2200-2600 191 35% 27% 20% 13%
Évolution par décennie (% des parties)
Décennie N parties 3…d6 3…c5 3…Nf6 3…d5
1950s 3 33% — 33% 33%
1960s 14 50% 29% 7% 14%
1970s 26 19% 42% 27% 12%
1980s 38 37% 24% 29% 5%
1990s 212 29% 23% 22% 17%
2000s 342 31% 27% 22% 14%
2010s 322 30% 24% 22% 16%
2020s 33 30% 24% 18% 21%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
3…d6 30% 30% -0.1%
3…c5 24% 24% +0.3%
3…Nf6 22% 18% ▼ -4.2%
3…d5 16% 21% ▲ +5.1%
Parties historiques
3…d6 — 30.6% (303 parties)
1958 — Lemos, Jorge Joao vs Gadia, Olicio — 0-1 — Rio de Janeiro BRA
1961 — Pietzsch, Wolfgang vs Malich, Burkhard, Dr. — 1-0 — GDR-ch Premnitz GER
1962 — Martins, Ernesto vs Gadia, Olicio — 0-1 — Campinas
1963 — Csanady, Zsombor vs Ozsvath, Andras — 0-1 — Budapest HUN
1964 — Christensen, Alfred vs Pokorny, Jiri — 1/2-1/2 — Bad Kuehlungsborn
3…c5 — 25.1% (248 parties)
1967 — Watzka, Horst vs Mohrlok, Dieter — 0-1 — Vrnjacka Banja SRB
1968 — Metras, Dominique vs Dueball, Juergen — 0-1 — Ybbs
1968 — Csom, Istvan vs Adorjan, Andras — 1/2-1/2 — HUN
1968 — Malagon Martinez, Alberto Jose vs Abdrasulova, Medina — 0-1 — Lugano olm
1970 — Tessaromatis, A. vs De Coverly, Roger D — 1-0 — Hammersmith
3…Nf6 — 22.1% (219 parties)
1953 — Kjeldsen, Torben vs Larsen, Bent — 0-1 — Copenhagen IS jr
1969 — Ekenberg, Bengt vs Horberg, Bengt-Eric — 1-0 — Sweden
1973 — Moore, JW. vs Kavalek, Lubomir — 0-1 — Las Vegas, NV USA
1973 — Asmundsson, Ingvar vs Magnusson, Olafur — 1-0 — Match
1975 — Ibar, Marcelo Rodolfo vs Franco Ocampos, Zenon — 1/2-1/2 — Buenos Aires ARG
3…d5 — 15.1% (149 parties)
1953 — Al Husari, Zita Fatima vs Pachman, Ludek — 0-1 — Prague CZE
1969 — Reed, Duncan W vs Donnelly, Mike J Dr — 1/2-1/2 — Rhyl
1969 — Reed, Duncan W vs Donnelly, Michael — 1/2-1/2 — Rhyl chU21-GB
1974 — Corbat, Philippe vs Ghysels, Chris — 0-1 — Schilde
1974 — Brodie, Hugh vs Pregent, Guy — 1/2-1/2 — Montreal CAN