B81s - 6…Nc6 7.g5 Nd7 8.Be3 - Scheveningen, Keres (1938)

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B81s — Scheveningen Keres
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g4 Nc6 7.g5 Nd7 8.Be3
Eval: [+1.27]
Les coups candidats
Ambassadeurs : Cvitan, Ognjen (22x), Gabrielian, Artur (9x), Siekanski, Janusz (9x), Cramling, Dan (8x), Orsag, Milan (7x), Mainka, Romuald (7x), Volodin, Aleksandr (7x), Ciric, Dimitrije (6x)
8…a6 — 24.4% (324 parties)
Ambassadeurs : Bokros, Albert (9x), Brzozka, Stefan (5x), Milovic, Aleksandra (4x), Perez, Giorgio (3x), Blaskowski, Johannes (3x), Estrin, Yakov (2x), Simagin, Vladimir (2x), Dubinin, Peter (2x)
8…Nb6 — 7.4% (98 parties)
Ambassadeurs : Gross, Stefan (3x), Tal, Mikhail (3x), Neuman, Petr (3x), Navarovszky, Laszlo (2x), Krogius, Nikolai V (2x), Gruenfeld, Yehuda (2x), Modig, Benny (2x), Lukin, Andrei M (2x)
8…Nde5 — 2.0% (27 parties)
Ambassadeurs : Kapengut, Albert (3x), Dietze, Wolfgang, Dr. (3x), Vitolinsh, Alvis (1x), Razuvaev, Yuri S (1x), Gibbs, Peter Campbell (1x), Kieninger, Georg (1x), Kucera, Adam Thomas (1x), Madler (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8…Be7 8…a6 8…Nb6 8…Nde5
<1800 19 58% 26% 11% 5%
1800-2200 257 63% 25% 7% 2%
2200-2600 670 67% 23% 8% 2%
2600+ 7 57% 43% — —
Évolution par décennie (% des parties)
Décennie N parties 8…Be7 8…a6 8…Nb6 8…Nde5
1930s 1 — 100% — —
1940s 1 — 100% — —
1950s 4 25% 25% 50% —
1960s 51 43% 47% 4% 6%
1970s 64 36% 45% 8% 9%
1980s 187 68% 15% 14% 2%
1990s 516 74% 18% 6% 1%
2000s 287 63% 27% 7% 1%
2010s 189 57% 32% 6% 3%
2020s 29 59% 31% 7% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8…Be7 57% 59% ▲ +1.5%
8…a6 32% 31% ▼ -1.2%
8…Nb6 6% 7% ▲ +1.1%
8…Nde5 3% 3% ▲ +0.8%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 3 parties
Kasparov, Garry — 2 parties
Karpov, Anatoly — 1 partie
Hou, Yifan — 1 partie
Parties historiques
8…Be7 — 65.0% (864 parties)
1950 — Lipnitsky, Isaac vs Kotlerman, S. — 1-0 — Kiev UKR
1960 — Alster, Ladislav vs Rejfir, Josef — 1-0 — Ostrava CZE
1964 — Fischer, Robert J vs Bruce G Dudley — 1-0 — Houston simultaan
1965 — Ivkov, Borislav vs Gligorić, Svetozar — 0-1 — Yugoslavia
1965 — ? vs Udovcic, Mijo — 1/2-1/2 — Zagreb CRO
8…a6 — 24.4% (324 parties)
1938 — Plater, Kazimierz vs Pope, John — 1-0 — Krakow Krakow POL
1947 — Kuppe, Wilhelm vs Herrmann, Hans, Dr. — 1/2-1/2 — Lueneburg GER
1952 — Ader Hausman, Walter vs Garcia Vera, Romeo — 1-0 — Mar del Plata ARG
1960 — Jansa, Vlastimil vs Kozma, Julius — 1-0 — Marianske Lazne
1960 — Tarasov, Vitaly vs Petrosian, Tigran V. — 0-1 — Moscow RUS
8…Nb6 — 7.4% (98 parties)
1958 — Krogius, Nikolai V vs Petrosian, Tigran V. — 1/2-1/2 — Riga LAT
1958 — Krogius, Nikolai V vs Petrosian, Tigran A. — 1/2-1/2 — Riga ch-URS
1968 — Mista, Ladislav vs Navarovszky, Laszlo — 1-0 — Reggio Emilia ITA
1969 — ? vs Navarovszky, Laszlo — 1-0 — Cacak
1970 — Byrne, Ray vs Grefe, John A — 1-0 — USA
8…Nde5 — 2.0% (27 parties)
1964 — Vitolinsh, Alvis vs Razuvaev, Yuri S — 1/2-1/2 — Moscow RUS
1964 — Gibbs, Peter Campbell vs Kieninger, Georg — 1/2-1/2 — Beverwijk NED
1967 — Kucera, Adam Thomas vs Madler — 1-0 — cr
1973 — Franzen, Jozef vs Aguayo Morales, Salvador Santiago — 1-0 — corr ol
1973 — Haag, Ervin vs Penrose, Jonathan — 1/2-1/2 — olm8 corr7384