E74n - 7.d5 h6 8.Bf4 - Averbakh (1955)

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E74n — Averbakh
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 (15x), Grivas, Efstratios (10x), Kunsztowicz, Uwe (8x), Schmidt, Wlodzimierz (8x), Alburt, Lev (8x), Sznapik, Aleksander (7x), Lukacs, Peter (7x)
8…a6 — 13.2% (201 parties)
Ambassadeurs : Uhlmann, Wolfgang (5x), Kaidanov, Gregory (3x), Polzin, Rainer (3x), Mende, Ingus (3x), Balta, Mihai Victor (3x), Bakheet Farag (2x), Popovic, Petar (2x), Kristinsson, Jon (2x)
8…Qa5 — 7.0% (106 parties)
Ambassadeurs : Hoegerl, Gerd (3x), Alburt, Lev (2x), Lysdal, Knud (2x), Kaidanov, Gregory (2x), Kohn, Thomas (2x), Lisanti, Marco (2x), Schumacher, Olaf (2x), Kuehler, Wolfgang (2x)
8…b5 — 5.7% (86 parties)
Ambassadeurs : Bekker-Jensen, Simon (3x), Ragozin, Evgeni (2x), Shchekachev, Andrei (2x), Van Laatum, Gozewijn (2x), Wirschell, Taco (2x), Stajcic, Nikola M (2x), Melas, Renos (2x), Sapi, Laszlo (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 50 44% 22% 12% —
1800-2200 448 45% 15% 10% 7%
2200-2600 734 53% 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 259 66% 5% 2% 4%
1990s 421 53% 9% 6% 7%
2000s 302 39% 15% 12% 6%
2010s 318 48% 23% 8% 7%
2020s 76 66% 9% 3% 5%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8…e6 48% 66% ▲ +18.0%
8…a6 23% 9% ▼ -13.4%
8…Qa5 8% 3% ▼ -4.9%
8…b5 7% 5% ▼ -2.0%
Joueurs célèbres
Champions du monde dans cette position
Kasparov, Garry — 6 parties
Tal, Mikhail — 1 partie
Ju, Wenjun — 1 partie
Parties historiques
8…e6 — 49.9% (758 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 — 13.2% (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 — 7.0% (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 — 5.7% (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