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C61d — Spanish: Bird’s (1900)
1.e4 e5 2.Nf3 Nc6 3.Bb5 Nd4 4.Nxd4 exd4 5.d3
Les coups candidats
5…c6 — 46.5% (334 parties)
Ambassadeurs : Aannevik, Bjarne (4x), Schuetz, Peter (3x), Vontina, Maria (3x), Koberl, Ferenc (2x), Garcia Basurte, Adolfo (2x), Bujak Izabela (2x), Malysheva, Polina (2x), Dodwell, Philip (2x)
5…Bc5 — 26.8% (193 parties)
Ambassadeurs : Van Riemsdijk, Herman C. (3x), Steil-Antoni, Fiona (3x), Martsynovskaya, Marina (3x), Barle, Janez (2x), Zheliandinov, Viktor (1x), Ozsvath, Andras (1x), Hromada, Vaclav (1x), Vesely, Jiri (1x)
5…a6 — 5.7% (41 parties)
Ambassadeurs : Ivkov, Borislav (1x), Jovanovic, Sasa T (1x), Hideg, L. (1x), Santa Isabel, Marivaldo dos Reis (1x), Tixier, Pauline (1x), Mohamed, Abdel Myriam (1x), Boulan, Laura (1x), Kulczak, Anemone (1x)
5…Nf6 — 5.0% (36 parties)
Ambassadeurs : Cafferty, Bernard (1x), Wall, John (snr) (1x), Ocampo Vargas, Raul (1x), Quintana Ramon (1x), De Jong, Peter (1x), Fernandes Lucas Daniel (1x), Turner, Donald (1x), Kelleher Clay (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5…c6 5…Bc5 5…a6 5…Nf6
<1800 119 49% 18% 9% 4%
1800-2200 259 44% 35% 2% 3%
2200-2600 78 40% 49% — 3%
2600+ 1 100% — — —
Évolution par décennie (% des parties)
Décennie N parties 5…c6 5…Bc5 5…a6 5…Nf6
1950s 9 67% 11% 11% 11%
1960s 10 50% 10% — —
1970s 16 56% 6% — 6%
1980s 45 29% 51% 2% 7%
1990s 167 44% 31% 5% 6%
2000s 238 49% 23% 7% 7%
2010s 198 46% 28% 6% 2%
2020s 36 58% 14% 6% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5…c6 46% 58% ▲ +12.4%
5…Bc5 28% 14% ▼ -14.4%
5…a6 6% 6% ▼ -0.5%
5…Nf6 2% 3% ▲ +0.8%
Parties historiques
5…c6 — 46.5% (334 parties)
1950 — Tarnowski, Alfred vs Koberl, Ferenc — 1/2-1/2 — Schiavno Zdroj
1950 — Seiffert, Robert vs Richter, Kurt — 0-1 — Berlin GER
1950 — Greenfeld, Alon vs Koberl, Ferenc — 1/2-1/2 — It, Schiavno Zdroj
1951 — Daksh Santosh Nathani vs Taylor, A (tony) — 1-0 — Vancouver
1951 — Karoly, George vs Goldstein, Maurice Edwards — 1/2-1/2 — Melbourne AUS
5…Bc5 — 26.8% (193 parties)
1950 — Hromada, Vaclav vs Vesely, Jiri — 1/2-1/2 — Chocen
1966 — Zheliandinov, Viktor vs Ozsvath, Andras — 1-0 — Prague CZE
1970 — Petersen, Peter Birk vs Hoppe, Winfried — 1/2-1/2 — Siegen GER
1983 — Van Riemsdijk, Herman C. vs Segal, Alexandru Sorin — 1/2-1/2 — Sao Paulo BRA
1984 — Belle, Erika vs Semenova, Lidia K — 1/2-1/2 — Thessaloniki GRE
5…a6 — 5.7% (41 parties)
1954 — Ivkov, Borislav vs Jovanovic, Sasa T — 1-0 — Belgrade SRB
1980 — Hideg, L. vs Santa Isabel, Marivaldo dos Reis — 0-1 — cr.
1992 — Aros Pedro vs Nieto, Solange — 1-0 — Santiago CHI
1994 — Andrei, Daniel-Valeriu vs Fishler, Dov — 1-0 — ?
1996 — Chong Chin Leong vs Yaacob, Mohd Rosli — 1/2-1/2 — Kuala Lumpur MAS
5…Nf6 — 5.0% (36 parties)
1952 — Cafferty, Bernard vs Wall, John (snr) — 1/2-1/2 — ?
1971 — Ocampo Vargas, Raul vs Quintana Ramon — 1-0 — Guatemala City GUA
1983 — De Jong, Peter vs Fernandes Lucas Daniel — 0-1 — Vegtlust
1985 — Turner, Donald vs Kelleher Clay — 1-0 — Seattle, WA USA
1985 — Daamen, Ferry vs Berben P — 1-0 — Valkenswaard