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D45q —
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Qc2 Bd6 7.b3 O-O 8.Bb2
Les coups candidats
8…e5 — 33.1% (482 parties)
Ambassadeurs : Kovalenko, Gleb I (5x), Sveshnikov, Vladimir (4x), Shirov, Alexei (4x), Vassiliev, Iouri (4x), Postny, Evgeny (4x), Zylla, Johannes (4x), Nihal Sarin (3x), Buecker, Peter (2x)
8…Qe7 — 23.1% (336 parties)
Ambassadeurs : Brinck-Claussen, Bjorn (2x), Teixeira, Ricardo (2x), Gelfand, Boris (2x), Pitkänen, Juhani (2x), Krasenkow, Michal (2x), Budowski, Gerardo (1x), Gentil Junior, Luiz (1x), Szapiel, Henryk (1x)
8…b6 — 18.5% (269 parties)
Ambassadeurs : Paikidze, Nazi (3x), Sorokin, Maxim (2x), Lys, Josef (2x), Avrukh, Boris (2x), Hoang, Thi Bao Tram (2x), Mayorau, Mikita (2x), Girya, Olga (2x), Kozma, Julius (1x)
8…Re8 — 17.5% (255 parties)
Ambassadeurs : Tisdall, Jonathan D (3x), Flear, Glenn C (3x), Lengyel, Levente (2x), Grzesik, Thomas (2x), Tatai, Stefano (2x), Schuh, Hubert (2x), Aadhav Saravanan Kanchi (1x), Blockx, Frank (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8…e5 8…Qe7 8…b6 8…Re8
<1800 40 32% 10% 15% 30%
1800-2200 477 27% 23% 16% 25%
2200-2600 805 36% 23% 21% 13%
2600+ 64 55% 25% 11% 5%
Évolution par décennie (% des parties)
Décennie N parties 8…e5 8…Qe7 8…b6 8…Re8
1950s 6 — 50% 17% 33%
1960s 11 9% 18% — 45%
1970s 10 10% 60% — 30%
1980s 53 13% 26% 4% 38%
1990s 155 21% 28% 15% 23%
2000s 314 23% 27% 15% 22%
2010s 650 40% 21% 20% 14%
2020s 256 41% 18% 27% 12%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8…e5 40% 41% ▲ +0.7%
8…Qe7 21% 18% ▼ -3.3%
8…b6 20% 27% ▲ +7.3%
8…Re8 14% 12% ▼ -2.1%
Joueurs célèbres
Champions du monde dans cette position
Kramnik, Vladimir — 3 parties
Anand, Viswanathan — 2 parties
Karpov, Anatoly — 1 partie
Parties historiques
8…e5 — 33.1% (482 parties)
1966 — Nei, Iivo vs Abanin, Vladimir — 0-1 — Zinnowitz Zinnowitz GER
1975 — Adamski, Jan vs Baumbach, Friedrich, Dr. — 1/2-1/2 — Rimavska Sobota SVK
1980 — Kharitonov, Andrei vs Lukacs, Peter — 1/2-1/2 — Lodz Makarczyka Mem
1983 — Neese, Hans-Joachim vs Buecker, Peter — 0-1 — Porz GER
1984 — Dragomarezkij, Evgeni vs Ivanov, Sergey — 1-0 — ?
8…Qe7 — 23.1% (336 parties)
1951 — Sumar, Julio vs Maderna, Carlos — 0-1 — Mar del Plata ARG
1952 — Budowski, Gerardo vs Gentil Junior, Luiz — 1-0 — Mar del Plata ARG
1952 — Szapiel, Henryk vs Litmanowicz, Wladyslaw — 1-0 — Miedzyzdroje
1960 — Blom, Kaj vs Paidousis, Aristidis — 1/2-1/2 — Leipzig GER
1966 — Nei, Iivo vs Mnatsakanian, Eduard A — 1-0 — Vilnius LTU
8…b6 — 18.5% (269 parties)
1956 — Kozma, Julius vs Hofmann, Vilem — 1-0 — CSR-ch sf Bratislava SVK
1988 — Hulak, Krunoslav vs Thoma, Wilhelm — 1/2-1/2 — Dornbirn
1988 — Lex, Christoph vs Feibert, Fred — 1/2-1/2 — Landau ch-RLPF
1990 — Laren, Phil vs Brattin, V. — 0-1 — Flint ch-MI M/X
1991 — Fomin, Maxim M. vs Knecht, Mark E. — 0-1 — World Open
8…Re8 — 17.5% (255 parties)
1953 — Mueller, Claus vs Stelzner, Wolfgang — 0-1 — Jena GER
1955 — Afizov, Marsel vs Sefc, Jan — 1-0 — Prague CZE
1960 — Blockx, Frank vs De Oliveira Rodrigue, Daniel — 1/2-1/2 — Leipzig GER
1960 — Kluger, Gyula vs Jensen, Erik Bartram — 1-0 — Leipzig olm
1961 — Lengyel, Levente vs Bednarski, Jacek — 1-0 — Warsaw POL