E12u - 9.e4 - Petrosian, Kasparov (1982)

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E12u — Petrosian, Kasparov (1982)
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.cxd5 Nxd5 7.Qc2 Nxc3 8.bxc3 Be7 8.e4
Les coups candidats
9…O-O — 87.0% (2040 parties)
Ambassadeurs : Agathiyan Susil (57x), Raessler, Arndt (22x), Arounopoulos, Stephan (19x), Nenciulescu, Silviu (14x), Pligin, Sergey Aleksandrovich (11x), Salzmann, Stefan (10x), Krasenkow, Michal (10x), Prchlý, Milos (9x)
9…c5 — 6.5% (152 parties)
Ambassadeurs : Szabolcsi, Janos (2x), Broman, Hannu (2x), Karolyi, Tibor (1x), Salov, Valery (1x), Novikov, Igor (1x), Tarnai, K. (1x), Penakov, C. (1x), ? (1x)
9…Nd7 — 6.4% (150 parties)
Ambassadeurs : Bakheet Farag (3x), Sargissian, Gabriel (3x), Pantzar, Milton (3x), Pigott, John C (2x), Dewald, Hans (2x), Lucasciuc-Horotan, Aurel-Mircea (1x), Reinecker, Kai (1x), Ostenstad, Berge (1x)
9…Qc8 — 0.1% (2 parties)
Ambassadeurs : Priehoda, Vitezslav (1x), Debnar, Lubos (1x), Franco Ocampos, Zenon (1x), Mabusela, Johannes Manyedi (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…O-O 9…c5 9…Nd7 9…Qc8
<1800 73 90% 7% 3% —
1800-2200 756 85% 6% 8% —
2200-2600 1227 87% 8% 5% 0%
2600+ 89 93% — 7% —
Évolution par décennie (% des parties)
Décennie N parties 9…O-O 9…c5 9…Nd7 9…Qc8
1980s 125 83% 10% 7% —
1990s 204 74% 13% 13% 0%
2000s 813 89% 6% 6% —
2010s 989 90% 5% 4% 0%
2020s 215 82% 7% 11% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…O-O 90% 82% ▼ -7.6%
9…c5 5% 7% ▲ +1.5%
9…Nd7 4% 11% ▲ +6.3%
9…Qc8 0% 0% -0.1%
Joueurs célèbres
Champions du monde dans cette position
Carlsen, Magnus — 4 parties
Kasparov, Garry — 2 parties
Anand, Viswanathan — 2 parties
Karpov, Anatoly — 1 partie
Kramnik, Vladimir — 1 partie
Ju, Wenjun — 1 partie
Gukesh D — 1 partie
Parties historiques
9…O-O — 87.0% (2040 parties)
1981 — Szeles, Karoly vs Czeripp, Gyorgy — 1/2-1/2 — Budapest HUN
1982 — Portisch, Lajos vs Christiansen, Larry — 1-0 — London ENG
1982 — Novikov, Igor vs Giorgadze, Giorgi Gel — 1-0 — Leningrad RUS
1982 — Stempin, Pawel vs Tischbierek, Raj — 1-0 — Houstka
1982 — Nemet, Ivan vs Perman, Torvald — 0-1 — Zurich SUI
9…c5 — 6.5% (152 parties)
1982 — Szabolcsi, Janos vs Karolyi, Tibor — 1-0 — HUN-ch+ Budapest HUN
1982 — Salov, Valery vs Novikov, Igor — 1/2-1/2 — Kislovodsk
1982 — ? vs Litynska, Marta — 1/2-1/2 — Kislovodsk
1985 — Tarnai, K. vs Penakov, C. — 1-0 — cr.
1985 — Donnelly, Mike J Dr vs Berry, Aidan — 1-0 — BCF Counties Corr
9…Nd7 — 6.4% (150 parties)
1982 — Gelfand, Boris vs Veremeichik, Vladimir — 0-1 — Minsk BLR
1984 — Ivanov, Igor V. vs Lein, Anatoly — 0-1 — New York op New York, NY USA
1984 — Ivanov , Ivan St vs Lein, Andreas — 0-1 — New York, NY USA
1984 — Twardon, Marian vs Kostyra, Stanislaw — 1/2-1/2 — Brno CZE
1988 — Ostenstad, Berge vs Kristiansen, Erling — 1/2-1/2 — Arnold Cup Gausdal NOR
9…Qc8 — 0.1% (2 parties)
1991 — Priehoda, Vitezslav vs Debnar, Lubos — 0-1 — SVK-ch Trencin
2018 — Franco Ocampos, Zenon vs Mabusela, Johannes Manyedi — 1-0 — Batumi GEO