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A61g —
1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.Bf4 a6
Les coups candidats
8.a4 — 76.8% (2771 parties)
Ambassadeurs : Browne, Walter Shawn (17x), Portisch, Lajos (12x), Roeder, Matthias (12x), Lobron, Eric (11x), Gurevich, Dmitry (10x), Galjé, Hans (10x), Kindermann, Stefan (9x), Kovacevic, Slobodan (9x)
8.e4 — 17.2% (621 parties)
Ambassadeurs : Daurelle, Herve (8x), Renet, Olivier (7x), Yakovich, Yuri (7x), Suba, Mihai (7x), Flear, Glenn C (6x), Kallai, Gabor (6x), Jasnikowski, Zbigniew (5x), Fedorowicz, John (5x)
8.Nd2 — 5.0% (182 parties)
Ambassadeurs : Petrosian, Arshak B (6x), Lputian, Smbat (4x), Wahls, Matthias (3x), Foisor, Ovidiu-Doru (3x), Fauland, Alexander (3x), Litynska, Marta (3x), Burkart, Patrick (2x), Vaganian, Rafael A (2x)
8.Ne4 — 0.3% (10 parties)
Ambassadeurs : Chruszcz, Tadeusz (4x), Dreev, Aleksey (2x), Ivanchuk, Vasyl (2x), Breutigam, Martin (1x), Maus, Soenke (1x), Ristic, Nenad (1x), Sax, Gyula (1x), Babel Waldemar (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8.a4 8.e4 8.Nd2 8.Ne4
<1800 91 80% 16% 3%
1800-2200 1063 77% 16% 5% 0%
2200-2600 2158 77% 17% 5% 0%
2600+ 71 80% 13% 7%
Évolution par décennie (% des parties)
Décennie N parties 8.a4 8.e4 8.Nd2 8.Ne4
1950s 13 92% 8%
1960s 18 94% 6%
1970s 55 93% 7%
1980s 500 65% 30% 4% 1%
1990s 235 59% 30% 7% 2%
2000s 467 53% 43% 2% 0%
2010s 1968 85% 9% 6% 0%
2020s 354 89% 6% 5%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8.a4 85% 89% ▲ +4.4%
8.e4 9% 6% ▼ -3.1%
8.Nd2 6% 5% ▼ -1.3%
8.Ne4 0% 0% -0.1%
Joueurs célèbres
Champions du monde dans cette position
Kasparov, Garry — 3 parties
Tal, Mikhail — 2 parties
Hou, Yifan — 2 parties
Ding, Liren — 1 partie
Ju, Wenjun — 1 partie
Parties historiques
8.a4 — 76.8% (2771 parties)
1952 — Goldenov, Boris P vs Alexander Tadala — 0-1 — Moskou ch-URS
1956 — Dittmann, Sieghart vs Juergens, Helmut — 1/2-1/2 — Leipzig GER
1956 — Alster, Ladislav vs Enevoldsen, Peter — 1-0 — Moscow RUS
1956 — Dittmann, Sieghart vs Uhlmann, Wolfgang — 1/2-1/2 — Dresden GER
1958 — Djurasevic, Bozidar vs Bogdanovic, Rajko — 1-0 — Sarajevo BIH
8.e4 — 17.2% (621 parties)
1958 — Djurasevic, Bozidar vs Bogdanovic, Rajko — 1-0 — Sarajevo BIH
1965 — Nacu, Miron vs Lambshire, Michael V — 1-0 — Sinaia
1975 — Sosonko, Gennadi vs Hutchings, Stuart J — 1-0 — Barcelona ESP
1976 — Reust, Josef vs Podzielny, Karl-Heinz — 1-0 — Winterthur
1976 — Sosonko, Gennadi vs ? — 1/2-1/2 — Vinkovci Vinkovci CRO
8.Nd2 — 5.0% (182 parties)
1983 — Dementiev, Oleg I vs Minasian, Ara — 1-0 — Erevan ARM
1986 — Litynska, Marta vs Prudnikova, Svetlana — 1/2-1/2 — USSR
1986 — Litynska, Marta vs Prudnikova, Svetlana — 1/2-1/2 — Soviet Union
1986 — Petrosian, Arshak B vs Cebalo, Miso — 1-0 — Sarajevo BIH
1987 — Vaganian, Rafael A vs Haik, Aldo — 1-0 — Marseille FRA
8.Ne4 — 0.3% (10 parties)
1987 — Dreev, Aleksey vs Ivanchuk, Vasyl — 0-1 — Lvov UKR
1987 — Dreev, Aleksey vs Ivanchuk, Vasyl — 0-1 — Lvov UKR
1988 — Breutigam, Martin vs Maus, Soenke — 1-0 — Duitsland tt
1992 — Chruszcz, Tadeusz vs Maliszewski, Leszek — 1-0 — ?
1993 — Chruszcz, Tadeusz vs Babel Waldemar — 1/2-1/2 — ?