E30o - 6…b5 - Nimzo-Indian Defense: Leningrad Variation, Averbakh Gambit (1947)

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E30o — Leningrad Variation, Averbakh Gambit (1947)
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Bg5 h6 5.Bh4 c5 6.d5 b5
Les coups candidats
7.dxe6 — 34.5% (181 parties)
Ambassadeurs : Misanovic, Vesna (4x), Spassky, Boris Vasily (3x), De Lagontrie, Jean (3x), Spassky, Boris V. (2x), Schneider, Lars-Ake (2x), Sigurjonsson, Gudmundur (2x), Kuhn, Hubert (2x), Graf, Juergen (2x)
7.e3 — 24.0% (126 parties)
Ambassadeurs : Bangiev, Alexander (8x), Farnik, Kym (8x), Cruz Ramirez, Eliecer (7x), Zielinski, Sergej (7x), Obukhov, Gennady (6x), Tylecek, Drahomir (6x), Sundqvist, Christer (4x), Celan, Melissa (4x)
7.e4 — 23.1% (121 parties)
Ambassadeurs : Portisch, Lajos (4x), Unzicker, Ferdinand, Dr. (4x), Matanovic, Aleksandar (3x), Perez Perez, Francisco Jose (2x), Mierzejewski, Stanislaw (2x), Campbell, Franklin J (2x), Dietze, Wolfgang, Dr. (2x), Bagirov, Vladimir (2x)
7.cxb5 — 5.7% (30 parties)
Ambassadeurs : Lempert, Igor (3x), Van Boven, Maarten (3x), Schloessner, Henrik (1x), Schmitzer, Klaus (1x), Dao, Thien Hai (1x), Palkovi, Jozsef (1x), Danilov, Vladimir (1x), Botezatu, Gheorghe (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7.dxe6 7.e3 7.e4 7.cxb5
<1800 19 16% 16% 26% 32%
1800-2200 132 32% 36% 14% 4%
2200-2600 189 40% 20% 19% 10%
2600+ 7 57% 43% — —
Évolution par décennie (% des parties)
Décennie N parties 7.dxe6 7.e3 7.e4 7.cxb5
1950s 27 7% 15% 59% —
1960s 39 13% 10% 59% —
1970s 56 46% 7% 39% —
1980s 84 55% 14% 14% 1%
1990s 142 39% 27% 16% 8%
2000s 70 36% 21% 19% 10%
2010s 56 32% 32% 14% 11%
2020s 50 8% 60% 8% 10%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7.dxe6 32% 8% ▼ -24.1%
7.e3 32% 60% ▲ +27.9%
7.e4 14% 8% ▼ -6.3%
7.cxb5 11% 10% ▼ -0.7%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 1 partie
Parties historiques
7.dxe6 — 34.5% (181 parties)
1955 — Spassky, Boris Vasily vs Portisch, Lajos — 1-0 — Wch U20 final-A
1957 — Alexander Tadala vs Aadhitha Karikalan — 1-0 — Leningrad RUS
1961 — Wolpert, Linus vs Nedeljkovic, Velja — 0-1 — Belgrade SRB
1962 — Meystre, G. vs Barbara, J. — 0-1 — cr.
1966 — Chonillo, Javier vs Sardinha, Helder — 1/2-1/2 — Havana CUB
7.e3 — 24.0% (126 parties)
1956 — Uhlmann, Wolfgang vs Aadhitha Karikalan — 1/2-1/2 — Krynica POL
1956 — Jezek, Jaroslav vs Kjellander, Sven Erik Gunnar — 1/2-1/2 — ?
1957 — Mititelu, Gheorghe vs Larsen, Bent Ravn — 1/2-1/2 — Student Olympiad
1957 — Mititelu, Gheorghe vs Larsen, Bent — 1/2-1/2 — Reykjavik ISL
1960 — Vladimirov, Boris T vs Krogius, Nikolai V — 1/2-1/2 — Perm RUS
7.e4 — 23.1% (121 parties)
1951 — Levenfish, Grigory vs Estrin, Yakov — 0-1 — Baku AZE
1952 — Ali, Zak vs Shaposhnikov, Yury — 0-1 — Sochi RUS
1956 — Korchnoi, Viktor vs Djurasevic, Bozidar — 0-1 — Belgrade URS-YUG
1957 — Neikirkh, Oleg vs Matanovic, Aleksandar — 1/2-1/2 — Sofia zt Sofia BUL
1957 — Portisch, Lajos vs Anay Barche — 1/2-1/2 — HUN-ch Budapest HUN
7.cxb5 — 5.7% (30 parties)
1988 — Schloessner, Henrik vs Schmitzer, Klaus — 0-1 — Wiesbaden GER
1992 — Oliveira Filho, Antonio Marcos S vs Calcado, Acyr Rogerio — 0-1 — Tournament team
1993 — Winther, Mats vs Mohlin, Erik — 0-1 — Enkopingsturneringen
1993 — Lempert, Igor vs Magerramov, Elmar — 1-0 — Berlijn open
1993 — Lempert, Igor vs Tiviakov, Sergei — 1-0 — St.Petersburg open