A89a - 8.* - Leningrad, Main Line (1949)

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A89a — Leningrad, Main Line (1949)
1.d4 f5 2.c4 Nf6 3.g3 g6 4.Bg2 Bg7 5.Nf3 O-O 6.O-O d6 7.Nc3 Nc6
Les coups candidats
Ambassadeurs : Welz, Peter, Dr. (56x), Ilincic, Zlatko (21x), Reilly, Tim (19x), Bocanegra Moreno, Rufino (16x), Zeitlein, Michael (15x), Troia, Elio (15x), Lanc, Alois (14x), Matulovic, Milan (13x)
Ambassadeurs : Tella, Jussi (4x), Noetzel, Frank (2x), Khurtsidze, Nino (2x), Grigorian, Vardan (2x), Hammes, Michael (2x), Sapi, Laszlo (2x), Kristjansson, Bragi (2x), Matulovic, Milan (2x)
8.Qc2 — 3.1% (231 parties)
Ambassadeurs : Bertok, Mario Jr. (2x), Ghitescu, Theodor (2x), De Greif, Boris (2x), Larsen, Bent (2x), Radics, Laszlo (2x), Baumbach, Friedrich, Dr. (2x), Presa, Luis Alberto Passos (2x), Ravn, Palle (1x)
8.Re1 — 2.6% (196 parties)
Ambassadeurs : Basta-Sohair, F. (2x), Kupka, Gerda (1x), Liebert, Ursula (1x), Damjanovic, Marko (1x), Kozomara, Vlado (1x), Falbesaner, E. (1x), Koch, Patrick (1x), Roberts, Michael (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8.d5 8.b3 8.Qc2 8.Re1
<1800 250 62% 9% 4% 6%
1800-2200 3154 69% 8% 4% 4%
2200-2600 2956 85% 8% 2% 1%
2600+ 24 88% 12% — —
Évolution par décennie (% des parties)
Décennie N parties 8.d5 8.b3 8.Qc2 8.Re1
1950s 50 66% 10% 14% —
1960s 134 70% 7% 8% 3%
1970s 276 79% 7% 3% 1%
1980s 409 82% 7% 4% 1%
1990s 1963 76% 9% 2% 2%
2000s 2174 77% 6% 3% 3%
2010s 2048 73% 8% 4% 3%
2020s 379 75% 8% 1% 5%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8.d5 73% 75% ▲ +2.6%
8.b3 8% 8% +0.3%
8.Qc2 4% 1% ▼ -2.5%
8.Re1 3% 5% ▲ +2.3%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 3 parties
Tal, Mikhail — 3 parties
Botvinnik, Mikhail — 3 parties
Carlsen, Magnus — 2 parties
Anand, Viswanathan — 1 partie
Parties historiques
8.d5 — 75.5% (5615 parties)
1952 — Keres, Paul vs Korchnoi, Viktor — 1-0 — Moskou ch-URS
1953 — Tartakower, Savielly vs Alexander Ronald Cheng — 1/2-1/2 — Hastings ENG
1953 — Kramer, Haije vs Eken, Max — 1/2-1/2 — Beverwijk NED
1953 — Troianescu, Octav vs Dolmatov, Sergey — 0-1 — Rumania ch
1953 — Alatortsev, Vladimir N. vs Blom, Kaj — 1/2-1/2 — Copenhagen DEN
8.b3 — 7.6% (565 parties)
1954 — Sokolsky, Alexey vs Pimenov, Sergey — 1/2-1/2 — Erevan ARM
1954 — Welsh, Alan vs Alexander, Conol Hugh — 0-1 — Cheltenham
1954 — Reilly, Brian vs Parliaros, Dimitrios — 1-0 — Amsterdam NED
1959 — Parma, Bruno vs Hamann, Svend — 1/2-1/2 — Muenchenstein/Basel
1959 — Incutto, Carlos vs Pelikán, Jiří — 1/2-1/2 — Buenos Aires ARG
8.Qc2 — 3.1% (231 parties)
1954 — Partyka, Kazimierz vs Kwilecki, Andrzej — 0-1 — Lodz POL
1954 — Benkner, Otto vs Parliaros, Dimitrios — 1-0 — Amsterdam olm
1954 — Koskinen, Heikki vs Ciocaltea, Victor — 1/2-1/2 — Prague CZE
1955 — Ravn, Palle vs Larsen, Bent — 1/2-1/2 — Copenhagen DEN
1955 — Toran Albero, Roman vs De Greif, Boris — 1-0 — Mar del Plata ARG
8.Re1 — 2.6% (196 parties)
1961 — Damjanovic, Marko vs Kozomara, Vlado — 1/2-1/2 — Sarajevo BIH
1967 — Kupka, Gerda vs Liebert, Ursula — 0-1 — Halle GER
1968 — Falbesaner, E. vs Koch, Patrick — 1-0 — corr GER
1968 — Roberts, Michael vs Strobel, Ferdinand — 1/2-1/2 — Ybbs
1971 — Marshall, Blair vs Grove, T. — 1-0 — Staffordshire