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E74n — Averbakh (1955)
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.d5 h6 8.Bf4
Les coups candidats
Ambassadeurs : Bakheet Farag (15x), Uhlmann, Wolfgang (14x), Grivas, Efstratios (11x), Alburt, Lev (8x), Schmidt, Wlodzimierz (8x), Kunsztowicz, Uwe (8x), Sznapik, Aleksander (7x), Lukacs, Peter (7x)
8…a6 — 12.9% (201 parties)
Ambassadeurs : Uhlmann, Wolfgang (5x), Kaidanov, Gregory (3x), Kristinsson, Jon (2x), Bakheet Farag (2x), Popovic, Petar (2x), Bronstein, David I (2x), Prusikin, Michael (2x), Balje, Jan (2x)
8…Qa5 — 6.8% (106 parties)
Ambassadeurs : Hoegerl, Gerd (3x), Lysdal, Knud (2x), Schumacher, Olaf (2x), Kuehler, Wolfgang (2x), Alburt, Lev (2x), Rich, Charles (2x), Lieb, Harald (2x), Konev, Yury (2x)
8…b5 — 5.5% (86 parties)
Ambassadeurs : Van Laatum, Gozewijn (2x), Shchekachev, Andrei (2x), Ragozin, Evgeni (2x), Wirschell, Taco (2x), Sapi, Laszlo (1x), Portisch, Ferenc (1x), Ryskin, Alexander (1x), Gelfand, Boris (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8…e6 8…a6 8…Qa5 8…b5
<1800 51 45% 22% 12% —
1800-2200 459 46% 14% 10% 7%
2200-2600 761 55% 12% 5% 6%
2600+ 9 89% 11% — —
Évolution par décennie (% des parties)
Décennie N parties 8…e6 8…a6 8…Qa5 8…b5
1950s 14 — 14% 14% —
1960s 17 12% 18% 6% 6%
1970s 112 38% 19% 9% —
1980s 266 67% 5% 2% 4%
1990s 430 54% 9% 6% 7%
2000s 308 40% 15% 12% 6%
2010s 333 50% 22% 7% 7%
2020s 80 68% 9% 2% 5%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8…e6 50% 68% ▲ +17.3%
8…a6 22% 9% ▼ -12.9%
8…Qa5 7% 2% ▼ -4.7%
8…b5 7% 5% ▼ -1.9%
Joueurs célèbres
Champions du monde dans cette position
Kasparov, Garry — 6 parties
Tal, Mikhail — 1 partie
Ju, Wenjun — 1 partie
Parties historiques
8…e6 — 51.2% (799 parties)
1968 — Calvo, Ruben vs Hangelbroek, Peter — 1-0 — Lugano olm
1969 — Gerusel, Mathias vs Maeder, Karl-Heinz — 0-1 — Amsterdam NED
1972 — Heinig, Wolfram, Dr. vs Bindrich, Oswald — 1-0 — Krumpa
1972 — Kunsztowicz, Uwe vs Roth, Lothar — 0-1 — Sindelfingen
1972 — Kunsztowicz, Uwe vs Kavalek, Lubomir — 1/2-1/2 — Goettingen
8…a6 — 12.9% (201 parties)
1956 — Steinmeyer, Robert vs Di Camillo, Attilio — 1/2-1/2 — Oklahoma City, OK USA
1957 — Juergens, Helmut vs Navarovszky, Laszlo — 1-0 — Reykjavik ISL
1964 — Uhlmann, Wolfgang vs Bogdanovic, Rajko — 1-0 — Sarajevo BIH
1964 — Uhlmann, Wolfgang vs Casa, Alex — 1-0 — Tel Aviv olm
1969 — Sirkia, Mauri O. vs Holaszek, Hans — 1/2-1/2 — Dresden GER
8…Qa5 — 6.8% (106 parties)
1955 — Rabar, Braslav vs Donner, Jan-Hein — 1-0 — Goteborg izt
1956 — Kampenuss, Peteris vs Zilber, Israel — 0-1 — Riga LAT
1966 — Garcia, Eder Raimundo vs Quinteros, Miguel A. — 1/2-1/2 — Buenos Aires ch-ARG
1971 — Pytel, Krzysztof vs Flesch, Janos — 1-0 — Lublin POL
1972 — Uhlmann, Wolfgang vs Andersson, Ulf — 1-0 — Skopje olm
8…b5 — 5.5% (86 parties)
1967 — Sapi, Laszlo vs Portisch, Ferenc — 1/2-1/2 — Budapest HUN
1980 — Ksieski, Zbigniew vs Sejkora, Vlastimil — 1-0 — Bydgoszcz POL
1980 — Silman, Jeremy vs Larry Ngumbau — 1-0 — Saratoga Springs, NY USA
1980 — Welin, Thomas vs Hammar, Bengt — 0-1 — Sweden
1982 — Ryskin, Alexander vs Gelfand, Boris — 0-1 — Minsk BLR