E92x - 7.d5 a5 8.Bg5 h6 9.Bh4 Na6 10.Nd2 Qe8 11.O-O Nh7 - Petrosian Stein Main Line [+0.22]

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E92x — Petrosian Stein Main Line
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.d5 a5 8.Bg5 h6 9.Bh4 Na6 10.Nd2 Qe8 11.O-O Nh7
Eval: [+0.22]
Les coups candidats
12.a3 — 70.6% (746 parties)
Ambassadeurs : Naumkin, Igor (28x), Kasparov, Garry (8x), Hellsten, Johan (7x), Yanvarjov, Igor (7x), Aranaz Murillo, Amalia (7x), Khenkin, Igor (6x), Antoshin, Vladimir S (5x), Nedobora, Mikhail (5x)
12.f3 — 13.5% (143 parties)
Ambassadeurs : Sbarra, Marco (5x), Happel, Henk (4x), Petrova, Irina (3x), Fedorowicz, John (2x), Davydov, Sergey P. (2x), Walker, Ben (2x), Livshits, Ron (2x), Ignat, Diana (2x)
12.Kh1 — 6.2% (66 parties)
Ambassadeurs : Polak, Tomas (5x), Yuferov, Sergey N (3x), Hartikainen, Markku (2x), Norri, Joose (2x), Tzermiadianos, Andreas (2x), Leyva, Hector (2x), Kotronias, Vasilios (2x), Krasteva, Beloslava (2x)
12.b3 — 2.9% (31 parties)
Ambassadeurs : Rydholm, Lennart (2x), Torell, Torsten (2x), Cmilyte, Viktorija (2x), Kiemann, Steffen (1x), Bielicki, Birke (1x), Stiller, Patrick, Dr. (1x), Roos, Michael (1x), Fyllingen, Roy Harald (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 12.a3 12.f3 12.Kh1 12.b3
<1800 7 57% 14% 14% —
1800-2200 296 65% 17% 4% 3%
2200-2600 579 75% 11% 8% 2%
2600+ 15 93% 7% — —
Évolution par décennie (% des parties)
Décennie N parties 12.a3 12.f3 12.Kh1 12.b3
1960s 10 70% 20% 10% —
1970s 12 67% 8% 8% —
1980s 73 68% 18% 3% 3%
1990s 351 73% 10% 7% 3%
2000s 305 70% 13% 6% 3%
2010s 267 68% 17% 7% 2%
2020s 39 72% 13% — 5%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
12.a3 68% 72% ▲ +4.0%
12.f3 17% 13% ▼ -4.4%
12.Kh1 7% 0% ▼ -7.1%
12.b3 2% 5% ▲ +3.3%
Joueurs célèbres
Champions du monde dans cette position
Kasparov, Garry — 8 parties
Kramnik, Vladimir — 4 parties
Parties historiques
12.a3 — 70.6% (746 parties)
1961 — Antoshin, Vladimir S vs Khenkin, Igor — 1-0 — Moscow RUS
1967 — Gershman, Semion vs Zhidkov, Valery S — 1/2-1/2 — ?
1968 — Petrosian, Tigran V. vs Kottnauer, Cenek — 1-0 — Olympiad Lugano SUI
1968 — Petrosian, Tigran A. vs Kottnauer, Cenek — 1-0 — Lugano SUI
1969 — Udovcic, Mijo vs Hort, Vlastimil — 1-0 — Zagreb CRO
12.f3 — 13.5% (143 parties)
1968 — Incutto, Carlos vs Acosta Garcia, Rafael Isaac — 0-1 — Mar del Plata ch-ARG
1968 — Gligorić, Svetozar vs Geller, Efim P. — 1/2-1/2 — Sochi RUS
1978 — Lazarev, Efim M. vs Shvidenko — 1-0 — Kiev UKR
1982 — Flear, Glenn C vs Lewis, Andrew P — 1-0 — BCF-ch Torquay ENG
1983 — Trikaliotis, Georgios vs Grivas, Efstratios — 1/2-1/2 — Heraklion
12.Kh1 — 6.2% (66 parties)
1969 — Antoshin, Vladimir S vs Mukhin, Mikhail — 1-0 — Leningrad RUS
1978 — Panno, Oscar vs Fedorowicz, John — 1/2-1/2 — Lone Pine, CA USA
1987 — Schuetz, Thomas vs Visser, Dirk — 1/2-1/2 — GER
1987 — Schutz, Andrzej vs Petrushin, Aleksey Pav — 1-0 — GER
1993 — Norri, Joose vs Manninen, Marko — 1-0 — Helsinki Helsinki FIN
12.b3 — 2.9% (31 parties)
1985 — Rydholm, Lennart vs Torell, Torsten — 0-1 — corr Wcup
1989 — Rydholm, Lennart vs Torell, Torsten — 0-1 — SVE CUP corr
1991 — Kievelitz, Bernd vs Gerhardt, Frank — 1/2-1/2 — Germany ch-23 prel-6
1992 — Durao, Pedro vs Almeida, Jose T — 1-0 — Lisbon-ch Lisbon POR
1994 — Fyllingen, Roy Harald vs Djurhuus, Rune — 1-0 — Drammen