C61f - 4.Nxd4 exd4 5.O-O - Bird’s [+0.57]

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C61f — Bird’s
1.e4 e5 2.Nf3 Nc6 3.Bb5 Nd4 4.Nxd4 exd4 5.O-O
Eval: [+0.57]
Les coups candidats
Ambassadeurs : Jirka, Jiri (71x), Vera-Cruz Jr, Aguinaldo (34x), Lanin, Boris Dr (24x), Kupreichik, Viktor D (17x), Klaric, Zlatko (13x), Sosnowska, Elzbieta (13x), Malaniuk, Vladimir P (13x), Martynov, Pavel (13x)
Ambassadeurs : Burakovsky, Marat (18x), Schuetz, Peter (12x), Larino Nieto, David (12x), Horvath, Denes (10x), Klip, Hans (10x), Scheerer, Christoph (10x), Golcman, Evgeny (9x), Hoiberg, Nina (9x)
5…a6 — 3.3% (138 parties)
Ambassadeurs : Lamy, Odette (3x), Jerry (2x), Wall, Bill (2x), Fantoni Franco (2x), Dammann, Rudolf (2x), Ersel, Ismail Hakki (2x), Kaminski, Patti (2x), Markidou, Christianna (2x)
5…g6 — 3.2% (136 parties)
Ambassadeurs : Moreno, Alejandro (8x), Blackburne, Joseph (5x), Thiellement, Andre (4x), Müßig, Frank (4x), Haanila, Erkki (4x), Capablanca, Jose (3x), Lima, Darcy (3x), Kofidis, Andreas (3x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5…Bc5 5…c6 5…a6 5…g6
<1800 223 34% 45% 7% 4%
1800-2200 1282 46% 40% 3% 3%
2200-2600 1164 66% 27% 0% 3%
2600+ 31 81% 13% — —
Évolution par décennie (% des parties)
Décennie N parties 5…Bc5 5…c6 5…a6 5…g6
1850s 1 100% — — —
1860s 3 33% 33% 33% —
1870s 12 42% 25% — —
1880s 10 — 10% — —
1890s 8 25% 62% — —
1900s 16 12% 38% — 19%
1910s 20 10% 45% — 25%
1920s 11 9% 55% — 9%
1930s 10 30% 30% — —
1940s 31 16% 42% — 10%
1950s 92 — 64% — 4%
1960s 122 6% 76% — 7%
1970s 145 37% 48% 6% 3%
1980s 390 64% 26% 1% 2%
1990s 824 47% 32% 4% 3%
2000s 1157 47% 37% 4% 2%
2010s 1216 47% 37% 3% 3%
2020s 150 41% 39% 5% 5%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5…Bc5 47% 41% ▼ -6.3%
5…c6 37% 39% ▲ +1.7%
5…a6 3% 5% ▲ +1.9%
5…g6 3% 5% ▲ +1.3%
Joueurs célèbres
Champions du monde dans cette position
Anand, Viswanathan — 5 parties
Kasparov, Garry — 5 parties
Alekhine, Alexander — 4 parties
Smyslov, Vladimir — 4 parties
Lasker, Emanuel — 2 parties
Karpov, Aleksandr — 2 parties
Karpov, Anatoly — 2 parties
Hou, Yifan — 2 parties
Tal, Mikhail — 1 partie
Parties historiques
5…Bc5 — 45.1% (1904 parties)
1856 — Kennedy, Hugh A vs Staunton, Howard — 0-1 — London ENG
1866 — De Vere, Cecil V vs Bird, Henry — 1-0 — London ENG
1873 — Boden, Samuel S vs Bird, Henry — 0-1 — Great Britain
1873 — Wisker, John vs Bird, Henry — 1-0 — London ENG
1873 — Boden, Samuel S vs Bird, Henry — 0-1 — London ENG
5…c6 — 37.2% (1567 parties)
1862 — Wuelfling, Otto vs Vitzthum von Eckstaedt, Conrad — 1-0 — Duesseldorf GER
1873 — Fleissig, Max vs Blackburne, Joseph — 1-0 — Vienna AUT
1874 — Hosmer, Henry vs Kennicott, Hiram — 1-0 — Chicago, IL USA
1875 — Minchin, James I vs Thorold, Edmund — 0-1 — London ENG
1880 — Congdon, James Adams vs Delmar, Eugene — 1/2-1/2 — New York, NY USA
5…a6 — 3.3% (138 parties)
1867 — De Riviere, Jules vs D'Andre Baron — 1/2-1/2 — ?
1970 — de Wall, Robert vs Jerry — 1-0 — Wichita Falls
1970 — Wall, Bill vs Jerry — 1-0 — ?
1970 — Berry, Jonathan vs Navarro, Carlos — 1-0 — Guadalajara
1972 — Tsvetkov, Aleksei Aleksan'ch vs Cupta — 1-0 — CCOL corr
5…g6 — 3.2% (136 parties)
1905 — Spielmann, Rudolf vs Blackburne, Joseph — 1/2-1/2 — Ostende
1905 — Marchand, Max vs Blackburne, Joseph — 1-0 — Ostende
1906 — Forgacs, Leo vs Blackburne, Joseph — 1/2-1/2 — Ostend
1910 — Capablanca, Jose vs Mlotkowski, Robert — 0-1 — Philadelphia, PA USA
1910 — Capablanca, Jose vs Miotkowski, S. — 0-1 — Philadelphia, PA USA