A46q - 2…e6 3.Bf4 c5 4.c3 - London

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A46q — London
1.d4 Nf6 2.Nf3 e6 3.Bf4 c5 4.c3
Eval: [+0.08]
Les coups candidats
4…Nc6 — 32.9% (1324 parties)
Ambassadeurs : Ponkratov, Pavel (9x), Ledger, Stephen C (4x), Juergens, Peter (4x), Herrmann, Andreas (4x), Blatny, Pavel (4x), Humbert, Patrick (4x), Saacke, Bernd (3x), Chesney, Bill (3x)
4…b6 — 27.1% (1092 parties)
Ambassadeurs : Abel, Lajos (10x), Barva, Attila Dr. (5x), Pereyra, Darío (5x), Blatny, Pavel (5x), Kargoll, Peter (4x), Grummitt, William (4x), Kukov, Andrej (3x), Barlocco, Carlo (3x)
4…d5 — 14.5% (584 parties)
Ambassadeurs : Kopasov, Evgeny (3x), Jimenez Jimenez, Leandro (3x), Reis, Virginia Lagrange M. (3x), Schulien, Charles (2x), Dantas, Bianor da Silva (2x), Dehn, Marcus (2x), Krueger, Olaf (2x), Alvarez Villar, Horacio Nelson (2x)
4…cxd4 — 10.2% (409 parties)
Ambassadeurs : Velimirovic, Dragoljub (4x), Hracek, Zbynek (3x), Farwick, Christian (3x), Malakhatko, Vadim (3x), Vrana, Frantisek (3x), Ferry, Robin (2x), Kassebaum, Roman (2x), Polgar, Sofia (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…Nc6 4…b6 4…d5 4…cxd4
<1800 207 37% 19% 16% 13%
1800-2200 1769 34% 25% 17% 9%
2200-2600 1410 32% 35% 9% 10%
2600+ 15 20% 33% 13% 7%
Évolution par décennie (% des parties)
Décennie N parties 4…Nc6 4…b6 4…d5 4…cxd4
1910s 1 — — — 100%
1920s 4 25% 25% — 50%
1930s 2 — 100% — —
1940s 1 100% — — —
1950s 3 67% 33% — —
1960s 20 35% 25% 10% 5%
1970s 33 33% 27% 9% 9%
1980s 201 26% 31% 11% 17%
1990s 603 29% 31% 13% 10%
2000s 1041 30% 29% 13% 11%
2010s 1767 35% 26% 16% 9%
2020s 348 39% 21% 18% 8%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…Nc6 35% 39% ▲ +3.6%
4…b6 26% 21% ▼ -4.5%
4…d5 16% 18% ▲ +1.9%
4…cxd4 9% 8% ▼ -1.0%
Joueurs célèbres
Champions du monde dans cette position
Kasparov, Garry — 1 partie
Tal, Mikhail — 1 partie
Ju, Wenjun — 1 partie
Parties historiques
4…Nc6 — 32.9% (1324 parties)
1927 — Poisl, A vs Molisch, Josef — 1-0 — ?
1941 — Brunoehler Max vs Rellstab, Ludwig — 1/2-1/2 — GER-ch Bad Oeynhausen GER
1950 — Ferrantes vs Stalda, Giuseppe — 1-0 — Venice ITA
1957 — Troger, Emma vs Rellstab, Ludwig — 1-0 — Bad Neuenahr GER
1961 — Casabella, Miguel Angel vs Rossetto, Hector — 1/2-1/2 — Santa Fe
4…b6 — 27.1% (1092 parties)
1922 — Prokes, Ladislav vs Opocensky, Karel — 1/2-1/2 — Bad Pistyan CZE
1938 — Abata Molina, Santiago Andres vs Bolbochan, J. — 0-1 — Argentina
1938 — Molina Castillo, Julio Luis vs Nogues Acuna, Alejandro — 1/2-1/2 — Argentina
1955 — Tipary, Lajos vs Foldi, Jozsef — 1/2-1/2 — Budapest HUN
1964 — Roux Cabral, Luis vs Schweber, Samuel — 0-1 — Tel Aviv olm prel
4…d5 — 14.5% (584 parties)
1966 — Thomas, Ronald vs Marcussi, Bartolome J — 1-0 — Sunderland
1967 — Stadler, Tereza vs Zatulovskaya, Tatiana — 1/2-1/2 — Budva MNE
1971 — Boersma, Paul vs Ree, Hans — 1/2-1/2 — NLD-ch Leeuwarden NED
1974 — Holmes, Aaron J vs Stirling, Andras — 0-1 — Ayr SCO
1978 — Boehlig, Heinz, Dr. vs Witkowski, Stefan — 1/2-1/2 — Warsaw POL
4…cxd4 — 10.2% (409 parties)
1914 — Rubinstein, Akiba vs Nimzowitsch, Aron — 1/2-1/2 — St Petersburg RUS
1924 — Belgrano Rawson, Luis vs Reti, Richard — 0-1 — Buenos Aires ARG
1928 — Agama Hernandez, Juan Jesus vs Concepcion Villegas, Bryan Uriel — 0-1 — Mar del Plata ARG
1968 — Bronstein, David I vs Lengyel, Laszlo — 1/2-1/2 — Amsterdam NED
1977 — Kasparov, Garry vs Dolmatov, Sergey — 1/2-1/2 — Sovjet-Unie