E31a - 7.* - Leningrad Variation, Benoni Defense (1953)

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E31a — Leningrad Variation, Benoni Defense (1953)
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Bg5 h6 5.Bh4 c5 6.d5 d6
Les coups candidats
Ambassadeurs : Rain, Ricardo Ernesto (47x), Zylla, Johannes (35x), Timman, Jan H (15x), Bangiev, Alexander (10x), Suba, Mihai (7x), Ree, Hans (5x), Comas Fabrego, Lluis (5x), Krzyzanowski, Antoni (5x)
7.f3 — 6.7% (89 parties)
Ambassadeurs : Grego, Luis Gonzaga (4x), Bagirov, Vladimir (3x), Grego, Luís José Gonzaga (3x), Gurgenidze, Bukhuti (2x), Estrin, Yakov (2x), Rajkovic, Dusan (2x), Gufeld, Eduard (1x), Sakharov, Yuri N (1x)
7.Rc1 — 3.5% (46 parties)
Ambassadeurs : Kunsztowicz, Uwe (5x), Gebreslase Simon Naod (2x), Melander, Birger (2x), Pesantes, Carlos (2x), Granda Zuniga, Julio E (2x), Steiner, Herman (1x), Cross, Robert Gary (1x), Golz, Werner (1x)
7.Nf3 — 1.7% (23 parties)
Ambassadeurs : Blondel, Francis (2x), Schawelka, Karl (1x), Kirschneck, Erich, Dr. (1x), Mah Jabeen, Sylvia (1x), Mills, Natalie (1x), Stull, Norbert (1x), Sloth, Jorn (1x), Henriksen, Morten Joachim (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7.e3 7.f3 7.Rc1 7.Nf3
<1800 41 78% 7% 5% 2%
1800-2200 401 84% 8% 3% 2%
2200-2600 576 89% 5% 2% 1%
2600+ 15 100% — — —
Évolution par décennie (% des parties)
Décennie N parties 7.e3 7.f3 7.Rc1 7.Nf3
1950s 30 73% 3% 10% —
1960s 44 75% 20% — —
1970s 82 82% 2% 9% 2%
1980s 158 84% 6% 6% 1%
1990s 343 87% 6% 3% 2%
2000s 314 86% 5% 3% 2%
2010s 311 86% 7% 2% 2%
2020s 48 81% 15% — 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7.e3 86% 81% ▼ -4.3%
7.f3 7% 15% ▲ +7.2%
7.Rc1 2% 0% ▼ -1.6%
7.Nf3 2% 2% -0.2%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 2 parties
Hou, Yifan — 1 partie
Parties historiques
7.e3 — 84.6% (1125 parties)
1952 — Keres, Paul vs O'Kelly de Galway, Alberic — 1/2-1/2 — Budapest HUN
1952 — Steiner, Herman vs Evans, Larry — 0-1 — USA
1953 — Steiner, Herman vs Carvalho, Luiz Candido Brant — 1-0 — Mar del Plata ARG
1953 — Jezek, Jaroslav vs Brat, Vaclav Dr — 0-1 — Prague ch-CSR
1953 — Spassky, Boris V. vs Smyslov, Vasily — 1-0 — Bucharest ROU
7.f3 — 6.7% (89 parties)
1953 — Wade, Robert G vs Donner, Jan-Hein — 0-1 — Opatija
1960 — Bagirov, Vladimir vs Vistaneckis, Isakas — 1-0 — Vilnius LTU
1960 — Abanin, Vladimir vs Cherepkov, Alexander V — 0-1 — Vilnius LTU
1960 — Piskov, Kamen vs Chipev, Teodor — 0-1 — Sofia BUL
1962 — Bagirov, Vladimir vs Muhutdinov, Marat — 1/2-1/2 — Novosibirsk RUS
7.Rc1 — 3.5% (46 parties)
1954 — Steiner, Herman vs Cross, Robert Gary — 1-0 — SF/LA, CA
1959 — Golz, Werner vs Taimanov, Mark — 0-1 — Dresden GER
1959 — Gurgenidze, Bukhuti vs Averbakh, Yuri L — 1/2-1/2 — Tbilisi ch-URS
1972 — Kunsztowicz, Uwe vs Suess, Alois — 1-0 — Oberursel
1972 — Kunsztowicz, Uwe vs Weise, Daniel, Dr. — 1-0 — Oberursel
7.Nf3 — 1.7% (23 parties)
1972 — Stull, Norbert vs Sloth, Jorn — 0-1 — Skopje MKD
1973 — Schawelka, Karl vs Kirschneck, Erich, Dr. — 1/2-1/2 — Krumbach
1988 — Mah Jabeen, Sylvia vs Mills, Natalie — 0-1 — Adelaide AUS
1991 — Gomez, Leonidas vs Slipak, Sergio — 0-1 — Buenos Aires ARG
1991 — Pina, Vladimiro vs Valiente, Cristobal — 0-1 — Mar del Plata ARG