E92o - 7…c5 - Petrosian (1948)

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E92o — Petrosian (1948)
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.d5 c5
Les coups candidats
Ambassadeurs : Gligoric, Sofija (2x), Ree, Hans (2x), Cuartas, Jaime Alexander (1x), Bielicki, Carlos (1x), Bolbochan, Jacobo (1x), Schweber, Samuel (1x), Diez del Corral, Jesus (1x), Besser, Hans (1x)
8.O-O — 33.2% (68 parties)
Ambassadeurs : Cantero, Ronaldo (2x), Vaganian, Rafael A (2x), Rejfir, Josef (1x), Jezek, Stanislav (1x), Akinyi Dericka Peroh (1x), Schmidt, Peter (1x), Jauregui Andrade, Carlos (1x), Wells, DG. (1x)
8.dxc6 — 7.8% (16 parties)
Ambassadeurs : de los Rios, Ivan (1x), Rossetto, Hector (1x), Bukhover, Alik (1x), Sakharov, Yuri N (1x), Casas Perea, Fernando (1x), Vallejos, Oscar Angel (1x), Wissemann, Andreas (1x), Wildenrath, Dirk (1x)
8.h3 — 5.4% (11 parties)
Ambassadeurs : Arraya, Jorge (1x), Schweber, Samuel (1x), Schebler, Gerhard (1x), Senff, Martin (1x), Hadjiyiannis, Costas (1x), Kalavanos, Georgios (1x), Surbek, Bozidar (1x), Grobovsek, Ivan (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8.Bg5 8.O-O 8.dxc6 8.h3
<1800 11 36% 36% — 18%
1800-2200 63 38% 40% 14% 3%
2200-2600 71 59% 24% 3% 3%
Évolution par décennie (% des parties)
Décennie N parties 8.Bg5 8.O-O 8.dxc6 8.h3
1950s 7 43% 57% — —
1960s 22 59% 27% 9% 5%
1970s 14 64% 29% 7% —
1980s 14 43% 57% — —
1990s 55 33% 27% 16% 11%
2000s 47 60% 23% 4% 2%
2010s 40 40% 40% 5% 8%
2020s 6 33% 67% — —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8.Bg5 40% 33% ▼ -6.7%
8.O-O 40% 67% ▲ +26.7%
8.dxc6 5% 0% ▼ -5.0%
8.h3 8% 0% ▼ -7.5%
Parties historiques
8.Bg5 — 46.3% (95 parties)
1957 — Petrosian, Tigran V. vs Nikolaevsky, Yuri V — 1-0 — Kiev UKR
1959 — Bolbochan, Jacobo vs Schweber, Samuel — 1/2-1/2 — Buenos Aires ARG
1959 — Todorova, Paunka vs Zvorykina, Kira — 0-1 — Plovdiv BUL
1960 — Pachman, Ludek vs Smailbegovic, Hasan — 1-0 — Sarajevo BIH
1960 — Bazan, Oleh vs Ablanedo Jimenez, Alvaro Alfonso — 1-0 — Mar del Plata ARG
8.O-O — 33.2% (68 parties)
1952 — Lundin, Erik vs Rabar, Braslav — 1/2-1/2 — Helsinki olm
1958 — Uhlmann, Wolfgang vs Pachman, Ludek — 0-1 — Munchen olm
1959 — Radev, Nikolai vs Kostov, Petko — 1-0 — BUL-ch Sofia BUL
1959 — Radev Iordanov, Nikolay vs Staw, Philippe — 1-0 — Budapest HUN
1960 — Rejfir, Josef vs Jezek, Stanislav — 1/2-1/2 — Ostrava CZE
8.dxc6 — 7.8% (16 parties)
1960 — de los Rios, Ivan vs Rossetto, Hector — 0-1 — Asuncion PAR
1963 — Bukhover, Alik vs Sakharov, Yuri N — 1/2-1/2 — Kiev UKR
1974 — Casas Perea, Fernando vs Vallejos, Oscar Angel — 1-0 — Zarate
1991 — Uusi-Oukari, Seppo vs Penttinen, Jarkko — 0-1 — It (open) \\ Jyvaskyla (Finla
1991 — Vasquez, Gabriela vs Romieux, Sebastien — 0-1 — Torcy
8.h3 — 5.4% (11 parties)
1966 — Arraya, Jorge vs Schweber, Samuel — 0-1 — Havana CUB
1992 — Hadjiyiannis, Costas vs Kalavanos, Georgios — 0-1 — Cyprus
1992 — Pandorf, Horst vs Prison, Hans Albert — 0-1 — Koblenz
1993 — Janisch, Robert vs Baumegger, Siegfried — 1-0 — Strassenbahn-Hartberg
1995 — Schebler, Gerhard vs Senff, Martin — 1/2-1/2 — Goch