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A23a — Bremen, Keres (1923)
1.c4 e5 2.Nc3 Nf6 3.g3 c6 4.Bg2 d5 5.cxd5 cxd5
Les coups candidats
6.e3 — 58.0% (640 parties)
Ambassadeurs : Lenaerts, Lennert (5x), Fedorchuk, Sergey A. (4x), Vecek, Marjan (4x), B, Owen (3x), Boder, Jan (3x), LESTER PEMPHERO (3x), Goganov, Aleksey (3x), Niedergesaess, Herbert (2x)
6.Nf3 — 15.8% (174 parties)
Ambassadeurs : Vetter, Udo (3x), Nikolov, Nikolay Petrov (2x), Krause, Christian (2x), Bazakutsa, Svyatoslav (2x), Ulrichsen, Jarl H (1x), Aulin-Jansson, Joran (1x), Weber, Marc, Dr. (1x), Schroeder, Guido (1x)
6.d3 — 12.3% (136 parties)
Ambassadeurs : Caliskan, Ismail (2x), Gusev, Nikolay N (1x), Seoev, Robert (1x), Milev, Zdravko (1x), Siero, Lucas (1x), Resende, Antonio Carlos (1x), Cajal, Andre (1x), Todorcevic Antic, Miodrag (1x)
6.e4 — 7.8% (86 parties)
Ambassadeurs : Weyerstrass, Ronald (2x), Kahl, Fred (2x), Bronts, Geert Kornelis (1x), Jonkheer, Alex (1x), Mitev, Stoyan (1x), Eberle, Werner (1x), Spiegelberg, Olaf (1x), Neumann, Hubertus (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6.e3 6.Nf3 6.d3 6.e4
<1800 187 48% 22% 17% 10%
1800-2200 462 62% 13% 11% 6%
2200-2600 191 69% 13% 8% 7%
2600+ 29 52% 38% — 10%
Évolution par décennie (% des parties)
Décennie N parties 6.e3 6.Nf3 6.d3 6.e4
1950s 1 — — 100% —
1960s 4 75% — 25% —
1970s 7 86% — 14% —
1980s 17 53% 18% 6% 24%
1990s 127 50% 17% 17% 6%
2000s 249 53% 14% 17% 9%
2010s 357 57% 16% 12% 9%
2020s 341 65% 17% 8% 6%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6.e3 57% 65% ▲ +8.3%
6.Nf3 16% 17% ▲ +1.3%
6.d3 12% 8% ▼ -4.1%
6.e4 9% 6% ▼ -3.4%
Joueurs célèbres
Champions du monde dans cette position
Ding, Liren — 2 parties
Anand, Viswanathan — 2 parties
Ju, Wenjun — 2 parties
Carlsen, Magnus — 1 partie
Parties historiques
6.e3 — 58.0% (640 parties)
1962 — Nielsen, Axel vs Soby, Frode — 1/2-1/2 — Copenhagen DEN
1968 — Gadia, Olicio vs Van Riemsdijk, Herman C. — 1/2-1/2 — Sao Bernardo
1969 — Aguirre, Alberto vs Aguirre, Roberto — 0-1 — ?
1970 — Collins, Richard vs Wigmore, John Keith — 1-0 — Lancaster
1970 — Fischer, Robert J vs Schmitz, Wilhelm — 1-0 — Solingen GER
6.Nf3 — 15.8% (174 parties)
1987 — Wu, Howard vs Watson, Cody — 1-0 — West Vancouver CAN
1988 — Ulrichsen, Jarl H vs Aulin-Jansson, Joran — 0-1 — NOR-ch Asker NOR
1988 — Weber, Marc, Dr. vs Schroeder, Guido — 1-0 — Stetten
1992 — Jubinski, J. vs Mihajlic, Max Brezac — 1-0 — Flint ch-MI class-DE
1994 — Pillonel, O vs Fiaccabrino, Giovanni — 0-1 — Switzerland
6.d3 — 12.3% (136 parties)
1957 — Gusev, Nikolay N vs Seoev, Robert — 1/2-1/2 — Ashkhabad
1962 — Milev, Zdravko vs Siero, Lucas — 1/2-1/2 — Havana CUB
1978 — Resende, Antonio Carlos vs Cajal, Andre — 1-0 — Tijuca
1981 — Todorcevic Antic, Miodrag vs Nikolic, Stanimir — 1/2-1/2 — Arandjelovac
1990 — Toikkanen, Pekka vs Nummi, Erkki — 0-1 — Tampere
6.e4 — 7.8% (86 parties)
1980 — Mitev, Stoyan vs Eberle, Werner — 1-0 — Noordwijkerhout
1984 — Spiegelberg, Olaf vs Neumann, Hubertus — 1/2-1/2 — Ottendorf Okrilla
1985 — Weyerstrass, Ronald vs Jonkheer, Alex — 1-0 — Huizen
1987 — Weyerstrass, Ronald vs Bronts, Geert Kornelis — 1-0 — Huizen
1991 — Asmundsson, Ingvar vs Altgelt, Alexander — 1/2-1/2 — ?