A09o — Accepted
1.Nf3 d5 2.c4 dxc4 3.Na3
Les coups candidats
Ambassadeurs : Garcia Palermo, Carlos Horacio (6x), Fine, Reuben (5x), Choma, Ernani Francisco (4x), Reti, Richard (3x), Keres, Paul Petrovich (3x), Ochkoos, Jura (3x), Sadler, Matthew D (3x), Putzbach, Gerd (3x)
3…Nf6 — 24.0% (218 parties)
Ambassadeurs : Bertagnolli, Alexander (3x), Petrosian, Tigran V. (2x), Wolfangel, Florence (2x), Mohr, Georg (2x), Arnold, Michael (2x), Chevant, Louis (2x), Cappai, Davide (2x), Vladimirova, Maria (2x)
Ambassadeurs : ? (3x), Godena, Michele (3x), Mika, Janos (3x), Bogoljubow, Efim (2x), Kuporosov, Viktor (2x), Stefanski, Maciej (2x), Drasko, Milan (2x), Lazarev, Vladimir (2x)
3…Nc6 — 6.5% (59 parties)
Ambassadeurs : Enevoldsen, Harald (1x), Cova Krause, Juan Pablo (1x), Keene, Raymond D (1x), Sugden, John N (1x), Prassas, Andreas (1x), Hirsch, Werner (1x), Hubka, Roland (1x), Konig, M. (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 3…c5 3…Nf6 3…a6 3…Nc6
<1800 29 7% 31% 7% 14%
1800-2200 230 18% 33% 14% 10%
2200-2600 374 29% 19% 32% 2%
2600+ 9 22% 22% 56%
Évolution par décennie (% des parties)
Décennie N parties 3…c5 3…Nf6 3…a6 3…Nc6
1920s 25 20% 8% 12%
1930s 19 53% 5% 11% 5%
1940s 4 75% 25%
1950s 10 10% 30%
1960s 16 25% 25% 6% 6%
1970s 17 35% 35%
1980s 64 48% 16% 12% 2%
1990s 232 37% 21% 17% 7%
2000s 293 16% 27% 20% 9%
2010s 190 12% 26% 33% 6%
2020s 37 27% 35% 22% 11%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
3…c5 12% 27% ▲ +14.9%
3…Nf6 26% 35% ▲ +8.8%
3…a6 33% 22% ▼ -11.0%
3…Nc6 6% 11% ▲ +5.0%
Joueurs célèbres
Champions du monde dans cette position
Euwe, Max — 2 parties
Botvinnik, Mikhail — 2 parties
Anand, Viswanathan — 1 partie
Ju, Wenjun — 1 partie
Parties historiques
3…c5 — 24.8% (225 parties)
1926 — Reti, Richard vs Havasi, Kornel — 1-0 — Budapest HUN
1926 — Reti, Richard vs Thomas, George Alan — 1-0 — Hastings Town Hall
1926 — Réti, Richard vs Thomas, George Alan — 1-0 — Hastings ENG
1926 — Reti, Richard vs Nimzowitsch, Aron — 0-1 — Semmering AUT
1927 — Morrison, John Harold vs Winter, William — 0-1 — Tunbridge Wells
3…Nf6 — 24.0% (218 parties)
1924 — Reti, Richard vs Janowski, Dawid — 1-0 — New York, NY USA
1929 — Davidson, Jacques vs De Brie, Gerardus — 1-0 — NED
1936 — Horluchi, H. vs Hart, HS. — 1-0 — Los Angeles, CA USA
1946 — Ozols, Karlis vs Dreibergs, Leonid — 1-0 — Augsburg GER
1952 — Garcia Vera, Romeo vs Puiggros, Guillermo — 1/2-1/2 — Mar del Plata ARG
3…a6 — 20.1% (182 parties)
1926 — Bogoljubow, Efim vs Johner, Paul — 1-0 — Berlin GER
1926 — Bogoljubow, Efim vs Johner, Nicolas — 1-0 — Berlin GER
1926 — Kostic, Boris vs Przepiorka, Dawid — 0-1 — Merano Meran ITA
1938 — Lenton, Alfred vs Vlagsma, Chris — 1-0 — London, Gt Eastern Hotel
1939 — Kranki, Hans vs Brinckmann, Alfred — 0-1 — Luebeck GER
3…Nc6 — 6.5% (59 parties)
1934 — Enevoldsen, Harald vs Cova Krause, Juan Pablo — 1-0 — Copenhagen DEN
1961 — Keene, Raymond D vs Sugden, John N — 1-0 — ?
1989 — Prassas, Andreas vs Hirsch, Werner — 1-0 — Kehl AT4
1990 — Jiretorn, Eva vs Sulistya, Maria Lucia Ratna — 0-1 — Novi Sad SRB
1992 — Trapp, Daniel Elod vs Writtam Pan — 1-0 — San Mateo, CA USA