E92o - 7.d5 c5 - Petrosian [+1.23]

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E92o — Petrosian
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.d5 c5
Eval: [+1.23]
Les coups candidats
Ambassadeurs : Gligorić, Svetozar (2x), Quinteros, Miguel A. (2x), Ree, Hans (2x), Kljucharev, Sergey (2x), Barczay, Laszlo (1x), Bilek, Istvan (1x), Petrosian, Tigran A. (1x), Nikolaevsky, Yuri V (1x)
8.O-O — 32.8% (67 parties)
Ambassadeurs : Cantero, Ronaldo (2x), Carracedo Casas, Eloy Manuel (2x), Rejfir, Josef (1x), Jezek, Stanislav (1x), Uhlmann, Wolfgang (1x), Pachman, Ludek (1x), Jauregui Andrade, Carlos (1x), Wells, Daniel (1x)
8.dxc6 — 7.8% (16 parties)
Ambassadeurs : Bukhover, Alik (1x), Sakharov, Yuri N (1x), De Los Rios, Antonio (1x), Rossetto, Hector (1x), Alonso-Lej De Las Casas, Fernando (1x), Vallejos Oscar Angel (1x), Ferreras Reiter, Leonhard (1x), Berecz, Arpad (1x)
8.h3 — 5.9% (12 parties)
Ambassadeurs : Flohr, Salo (1x), Aronin, Lev (1x), Arraya, Jorge (1x), Schweber, Samuel (1x), Hadjiyiannis, Costas (1x), Kleopas, Georgios (1x), Pandorf, Horst (1x), Prison, Hans Albert (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 5 20% 40% — 40%
1800-2200 56 38% 43% 12% 2%
2200-2600 70 54% 27% 3% 3%
Évolution par décennie (% des parties)
Décennie N parties 8.Bg5 8.O-O 8.dxc6 8.h3
1940s 1 — — — 100%
1950s 7 43% 57% — —
1960s 22 59% 27% 9% 5%
1970s 13 62% 31% 8% —
1980s 14 43% 57% — —
1990s 55 33% 27% 16% 11%
2000s 47 60% 23% 4% 2%
2010s 40 40% 40% 5% 8%
2020s 5 40% 60% — —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8.Bg5 40% 40% +0.0%
8.O-O 40% 60% ▲ +20.0%
8.dxc6 5% 0% ▼ -5.0%
8.h3 8% 0% ▼ -7.5%
Parties historiques
8.Bg5 — 46.1% (94 parties)
1957 — Petrosian, Tigran A. vs Nikolaevsky, Yuri V — 1-0 — Kiev UKR
1959 — Bolbochan, J. vs Schweber — 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 — Aguilera Bazan, Oscar vs Alvarez del Monte, Jose — 1-0 — Mar del Plata ARG
8.O-O — 32.8% (67 parties)
1952 — Lundin, Erik vs Rabar, Bakhtyar Hamasaleh — 1/2-1/2 — Helsinki FIN
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, Antonio vs Rossetto, Hector — 0-1 — Asuncion PAR
1963 — Bukhover, Alik vs Sakharov, Yuri N — 1/2-1/2 — Kiev UKR
1974 — Alonso-Lej De Las Casas, Fernando vs Vallejos Oscar Angel — 1-0 — Zarate
1991 — Acosta Vasquez, Gabriel Alejandro vs Romieux, Sebastien — 0-1 — Torcy
1991 — Uusi-Oukari, Seppo vs Penttinen, Jarkko — 0-1 — It (open) \ Jyvaskyla (Finla
8.h3 — 5.9% (12 parties)
1948 — Flohr, Salo vs Aronin, Lev — 1/2-1/2 — Moskou ch-URS
1966 — Arraya, Jorge vs Schweber, Samuel — 0-1 — Havana CUB
1992 — Hadjiyiannis, Costas vs Kleopas, Georgios — 0-1 — Cyprus
1992 — Pandorf, Horst vs Prison, Hans Albert — 0-1 — Koblenz
1993 — Janisch, Robert vs Baumegger, Siegfried — 1-0 — Strassenbahn-Hartberg