E92n - 7.d5 - Petrosian Variation (1949)

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E92n — Petrosian Variation (1949)
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.d5
Les coups candidats
Ambassadeurs : Naumkin, Igor (79x), Clares Huanca, Danner Saed (78x), Huss, Andreas (60x), Laketic, Gojko (43x), Grivas, Efstratios (31x), Zvjaginsev, Vadim (26x), Polak, Tomas (24x), Kolanek, Roman (24x)
Ambassadeurs : Huss, Andreas (18x), Sveinsson, Jon Arni (15x), Hort, Vlastimil (13x), Gligoric, Sofija (10x), Baviera, Manlio (10x), Antonio, Conceicao (10x), Bianchi, Maurizio Salvatore (9x), Olivieri, Luigi (9x)
7…Na6 — 8.2% (1392 parties)
Ambassadeurs : Hebden, Mark L (14x), Clares Huanca, Danner Saed (13x), Naumkin, Igor (8x), Byrne, Robert E (6x), Polak, Tomas (6x), Barton, Dave (6x), Mrva, Martin (5x), Gomez Jurado, Luis Alberto (5x)
7…Nh5 — 2.7% (453 parties)
Ambassadeurs : Petrosian, Tigran V. (5x), Szabo, Laszlo (3x), Paasikangas, Johanna (3x), Sheldon, Ruth (3x), Murey, Jacob (3x), Moehring, Guenther (2x), Gufeld, Eduard (2x), Uhlmann, Wolfgang (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…a5 7…Nbd7 7…Na6 7…Nh5
<1800 1039 52% 28% 7% 3%
1800-2200 6512 61% 21% 8% 3%
2200-2600 6755 73% 12% 10% 2%
2600+ 140 77% 9% 13% —
Évolution par décennie (% des parties)
Décennie N parties 7…a5 7…Nbd7 7…Na6 7…Nh5
1950s 104 6% 47% 15% 18%
1960s 440 16% 49% 10% 11%
1970s 410 40% 44% 3% 3%
1980s 703 56% 34% 3% 2%
1990s 4249 63% 20% 8% 2%
2000s 4405 60% 22% 10% 2%
2010s 5182 70% 15% 8% 3%
2020s 1465 76% 11% 8% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…a5 70% 76% ▲ +6.2%
7…Nbd7 15% 11% ▼ -3.2%
7…Na6 8% 8% -0.3%
7…Nh5 3% 2% ▼ -0.9%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 10 parties
Kasparov, Garry — 10 parties
Kramnik, Vladimir — 10 parties
Anand, Viswanathan — 2 parties
Botvinnik, Mikhail — 2 parties
Carlsen, Magnus — 1 partie
Ju, Wenjun — 1 partie
Karpov, Anatoly — 1 partie
Ding, Liren — 1 partie
Gukesh D — 1 partie
Parties historiques
7…a5 — 62.8% (10645 parties)
1955 — Makarczyk, Kazimierz vs Alster, Ladislav — 1/2-1/2 — Prague tm Prague CZE
1955 — Franz, Joachim vs Eising, Johannes — 1/2-1/2 — Zittau GER
1957 — Simagin, Vladimir vs Ilivitsky, Georgy A — 1/2-1/2 — Sverdlovsk
1958 — Johannsson, Ingi R vs Czerniak, Moshe — 1/2-1/2 — Munich GER
1958 — Pachman, Ludek vs Rapaka Samuel Paul — 0-1 — Munchen olm
7…Nbd7 — 20.2% (3423 parties)
1950 — Szabo, Laszlo vs Miguel, Nahuel — 0-1 — Budapest HUN
1951 — Kapu, Jeno vs Kluger, Gyula — 1/2-1/2 — Hungary ch
1951 — Zhukhovitsky, Samuel vs Kotlerman, S. — 0-1 — Baku AZE
1952 — Sakellaropoulos, Theodoros vs Boleslavsky, Isaac — 0-1 — Helsinki olm
1952 — Sakellaropoulos vs Bronstein, Anna — 0-1 — Helsinki FIN
7…Na6 — 8.2% (1392 parties)
1958 — Filip, Miroslav vs Matanovic, Aleksandar — 0-1 — Munchen olm
1958 — Larsen, Benjamin Holsko vs Gligoric, Sofija — 0-1 — Portoroz izt
1959 — Spektor, Igor vs Ruban, Vadim — 1-0 — Riga LAT
1959 — Nei, Iivo vs Stein, Leonid — 0-1 — Tallinn EST
1959 — Clarke, Peter vs Penrose, Jonathan — 1/2-1/2 — York ch-BCF
7…Nh5 — 2.7% (453 parties)
1950 — Arlamowski, Edward vs Szabo, Laszlo — 0-1 — Schiavno Zdroj
1950 — Szabo, Laszlo vs Boleslavsky, Isaac — 0-1 — Budapest HUN
1951 — Pasman, Arun vs Tal, Mikhail — 1-0 — Riga LAT
1951 — Petrosian, Tigran V. vs Geller, Efim P. — 1/2-1/2 — Moskou ch-URS
1952 — Pasman, Michael vs Tal, Mikhail — 1-0 — Riga LAT