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A25r — Closed, Troeger (1922)
1.c4 e5 2.Nc3 Nc6 3.g3 d6 4.Bg2 Be6 5.d3
Les coups candidats
5…Qd7 — 82.5% (1266 parties)
Ambassadeurs : Ljubojevic, Ljubomir (13x), Kupreichik, Viktor D (13x), Short, Nigel D (12x), Reprintsev, Alexander (7x), Delemarre, Isabel (6x), Krupa, Monika (6x), Teumer, Joerg, Dr. (5x), Jirka, Jiri (5x)
5…g6 — 8.5% (130 parties)
Ambassadeurs : Popovych, Orest (3x), Rind, Bruce (2x), Jurkiewicz, Krzysztof (2x), Kowalczyk, Rafal (2x), Krupa, Krzysztof (2x), Hort, Vlastimil (2x), Petrosian, Tigran A. (1x), Estrin, Yakov (1x)
5…f5 — 2.2% (34 parties)
Ambassadeurs : Langschmidt, Dirk (1x), Kussin, K. (1x), Sunye Neto, Jaime (1x), Kupreichik, Viktor D (1x), Walther, Joachim (1x), Poenisch, Eckehard (1x), De Wit, Patricia (1x), Boll, Peter (1x)
5…Be7 — 2.2% (33 parties)
Ambassadeurs : Figueroa, Eduardo (2x), Herrera, Fernando (1x), Studzinsky, D. (1x), Akshay Dil (1x), White, Chris (1x), Thoromo Witness (1x), Gerasimou, Theofilos (1x), Manoli F (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5…Qd7 5…g6 5…f5 5…Be7
<1800 66 76% 8% 3% 5%
1800-2200 662 77% 13% 3% 3%
2200-2600 602 92% 5% 1% 0%
2600+ 9 100%
Évolution par décennie (% des parties)
Décennie N parties 5…Qd7 5…g6 5…f5 5…Be7
1950s 5 40%
1960s 29 79% 3% 3%
1970s 41 85% 12% 2%
1980s 115 83% 7% 3% 1%
1990s 330 85% 5% 2% 3%
2000s 460 80% 10% 3% 3%
2010s 482 83% 9% 2% 2%
2020s 72 82% 14% 1% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5…Qd7 83% 82% ▼ -0.8%
5…g6 9% 14% ▲ +4.8%
5…f5 2% 1% -0.3%
5…Be7 2% 1% -0.5%
Joueurs célèbres
Champions du monde dans cette position
Gukesh D — 3 parties
Botvinnik, Mikhail — 2 parties
Kasparov, Garry — 1 partie
Parties historiques
5…Qd7 — 82.5% (1266 parties)
1957 — Mednis, Edmar J vs Bernstein, Sidney — 1-0 — New York, NY USA
1957 — Heinrich, Georg vs Troeger, Paul — 1-0 — Neustadt an der Weinstrasse
1961 — Haag, Ervin vs Anay Barche — 0-1 — Budapest ch-HUN
1961 — Vranesic, Zvonko vs Grimshaw David — 1-0 — Brockville
1961 — Bannik, Anatolij vs Smyslov, Vasily — 1/2-1/2 — Moskou
5…g6 — 8.5% (130 parties)
1968 — Petrosian, Tigran A. vs Estrin, Yakov — 1-0 — Moscow RUS
1972 — Koploy, Paul vs Aegerter, Martin — 1/2-1/2 — Lone Pine, CA USA
1974 — Chellstorp, Craig vs Hort, Vlastimil — 0-1 — New York, NY USA
1978 — Holfelder, Hans-Joachim vs Gerusel, Mathias — 1-0 — Germany West
1978 — Ivanov, Alexander vs Kupreichik, Viktor D — 0-1 — Ashkhabad
5…f5 — 2.2% (34 parties)
1975 — Pfleger, Helmut, Dr. vs Balinas, Rosendo C — 1-0 — Manila PHI
1984 — Sunye Neto, Jaime vs Kupreichik, Viktor D — 1/2-1/2 — Barcelona ESP
1984 — De Wit, Patricia vs Boll, Peter — 0-1 — Den Bosch
1987 — Langschmidt, Dirk vs Kussin, K. — 1-0 — corr BdF
1988 — Walther, Joachim vs Poenisch, Eckehard — 0-1 — corr EU/M/GT
5…Be7 — 2.2% (33 parties)
1963 — Herrera, Fernando vs Figueroa, Eduardo — 0-1 — Buenos Aires ch-ARG
1987 — Studzinsky, D. vs Akshay Dil — 1-0 — corr EU/M/GT
1991 — Levesque, Melanie vs Hassan Gordon, T. — 1/2-1/2 — London,Canada
1992 — Caramia, Javier vs Escandell, Bartolome — 1-0 — Villa Ballester open
1995 — Gerasimou, Theofilos vs Manoli F — 1/2-1/2 — GRC-ch G-16