E92s - 7.d5 a5 8.Bg5 - Petrosian, Stein

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E92s — Petrosian, Stein
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.d5 a5 8.Bg5
Les coups candidats
Ambassadeurs : Naumkin, Igor (69x), Laketic, Gojko (36x), Clares Huanca, Danner Saed (29x), Lugovoi, Aleksei (26x), Huss, Andreas (20x), Socko, Monika (18x), Roselli Mailhe, Bernardo (18x), Polak, Tomas (14x)
8…Na6 — 16.0% (983 parties)
Ambassadeurs : Naumkin, Igor (10x), Clares Huanca, Danner Saed (6x), Korotkjevich, Stanislav (4x), Sirletti, Sonia (4x), Narciso Dublan, Marc (4x), Rogers, Ian (3x), Lyrberg, Patrik (3x), Kiss, Pal (3x)
8…Qe8 — 1.5% (91 parties)
Ambassadeurs : Maggiolo, Sonia (1x), Gershnik, Anna (1x), Sanchez Repullo, Daniel (1x), Campos Alarcon, Rafael (1x), Thorsson, Olafur (1x), Bronstein, David I (1x), Sheldon, Ruth (1x), Mihevc-Mohr, Narcisa (1x)
8…Nbd7 — 1.1% (65 parties)
Ambassadeurs : Guimaraes, Wagner Peixoto (2x), Fiedler, Brian (2x), Sbarra, Marco (2x), Young, Christopher (2x), Sheldon, Ruth (1x), Noyce, Robert C (1x), Singer, Richard (1x), Januschke, Markus (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8…h6 8…Na6 8…Qe8 8…Nbd7
<1800 211 81% 15% 0% 3%
1800-2200 2169 79% 18% 2% 2%
2200-2600 3225 82% 16% 2% 0%
2600+ 68 87% 10% 1% —
Évolution par décennie (% des parties)
Décennie N parties 8…h6 8…Na6 8…Qe8 8…Nbd7
1960s 43 98% 2% — —
1970s 78 87% 13% — —
1980s 241 92% 8% — —
1990s 1649 84% 14% 1% 1%
2000s 1485 78% 19% 1% 1%
2010s 2083 80% 17% 2% 1%
2020s 568 81% 16% 1% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8…h6 80% 81% ▲ +0.8%
8…Na6 17% 16% ▼ -0.9%
8…Qe8 2% 1% -0.5%
8…Nbd7 1% 1% ▲ +0.6%
Joueurs célèbres
Champions du monde dans cette position
Kasparov, Garry — 10 parties
Kramnik, Vladimir — 10 parties
Tal, Mikhail — 1 partie
Ju, Wenjun — 1 partie
Karpov, Anatoly — 1 partie
Botvinnik, Mikhail — 1 partie
Ding, Liren — 1 partie
Anand, Viswanathan — 1 partie
Parties historiques
8…h6 — 81.3% (4999 parties)
1960 — Szabo, Laszlo vs Ciocaltea, Victor — 1-0 — Bucharest ROU
1960 — Benko, Pal vs Weinstein, Raymond — 0-1 — New York Metropolita
1961 — Rossetto, Hector vs Moyano, Marco — 1-0 — Balcarce
1961 — Petrosian, Tigran V. vs Lutikov, Anatoly S — 1-0 — Moskou
1961 — Schroeder, Ruperto vs Pilnik, Herman — 1/2-1/2 — Santiago de Chile
8…Na6 — 16.0% (983 parties)
1967 — Kholmov, Ratmir D vs Nikolaevsky, Yuri V — 0-1 — USSR
1970 — Ivkov, Borislav vs Tal, Mikhail — 0-1 — Herceg Novi MNE
1971 — Lerner, Konstantin Z vs Tseitlin, Mark D — 0-1 — Leningrad RUS
1972 — Sterngold, Susan vs Schmidt, Peter — 0-1 — USA ch wmn
1975 — Morrison, Graham vs Boyd, Chris — 1-0 — Carmarthen
8…Qe8 — 1.5% (91 parties)
1990 — Poellen, Peter vs Hansen, Ulrich Kjaer — 1-0 — ?
1991 — Maggiolo, Sonia vs Gershnik, Anna — 0-1 — Guarapuava BRA
1991 — Kanko, Ilkka vs Koskinen, Henri — 1/2-1/2 — Helsinki FIN
1993 — Szymczak, Zbigniew vs Wobbe, Sven — 1-0 — Hamburg GER
1993 — Hedman, Erik vs Jonsson, Mikael — 1-0 — SWE-chB Lindesberg
8…Nbd7 — 1.1% (65 parties)
1990 — Mallet, Lionel vs Strowski, Yannick — 1/2-1/2 — France
1994 — Schulz, Klaus Dieter vs Ragni, Marco, Dr. — 1-0 — Hockenheim GER
1994 — Fiedler, Brian vs Kalousek, Vladimir — 0-1 — Hradec Kralove CZE
1994 — Engels, Marco vs Schroder, Andreas — 1/2-1/2 — Porz GER
1994 — Titz, Heimo vs Raubal, Martin — 1-0 — AUT-ch Austria