E56a - 8.* - Main Line (1933)

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E56a — Main Line (1933)
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O Nc6
Les coups candidats
Ambassadeurs : Donner, Jan-Hein (38x), Taimanov, Mark (35x), Averbakh, Yuri L (32x), Gligoric, Sofija (28x), Rapaka Samuel Paul (27x), Popov, Vladimir Valentinovich (26x), Szabo, Laszlo (25x), Miguel, Nahuel (25x)
Ambassadeurs : Aleksandrov, Viktor A. (14x), Schulenberg, Henk A T (6x), Kolpak, Sergey Fedorovich (6x), Reichelt, Manfred (5x), Carvaga, Roman (5x), Ben Artzi, Ido (4x), Kveinys, Aloyzas (4x), Langer, Raimund (4x)
8.dxc5 — 1.0% (91 parties)
Ambassadeurs : Palladino, Mario (3x), Demostenes, Vergara (3x), Aannevik, Bjarne (2x), Fuderer, Andrija (1x), Spassky, Boris Vasily (1x), Palmo, Pentti (1x), Lampela, Olavi (1x), Morcken, Otto B (1x)
8.Ne2 — 0.8% (72 parties)
Ambassadeurs : Flatau, Leo (2x), Collins, Richard (2x), Bosch van Rosenthal, Edzard (2x), Donner, Jan-Hein (2x), Alatortsev, Vladimir N. (2x), Portisch, Ferenc (2x), Josting, Friedel (1x), Slepoy, Yosef (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8.a3 8.cxd5 8.dxc5 8.Ne2
<1800 370 87% 7% 2% 1%
1800-2200 2597 89% 8% 1% 1%
2200-2600 3728 88% 9% 1% 1%
2600+ 198 88% 12% — —
Évolution par décennie (% des parties)
Décennie N parties 8.a3 8.cxd5 8.dxc5 8.Ne2
1950s 555 95% 2% 1% 2%
1960s 461 96% 2% 0% 2%
1970s 461 95% 2% 1% 1%
1980s 487 96% 1% 1% 1%
1990s 934 95% 3% 0% 1%
2000s 2105 93% 4% 1% 1%
2010s 3613 85% 12% 1% 0%
2020s 291 68% 30% 2% 0%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8.a3 85% 68% ▼ -17.3%
8.cxd5 12% 30% ▲ +18.0%
8.dxc5 1% 2% +0.4%
8.Ne2 0% 0% -0.1%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 10 parties
Hou, Yifan — 9 parties
Kramnik, Vladimir — 8 parties
Botvinnik, Mikhail — 6 parties
Karpov, Anatoly — 2 parties
Kasparov, Garry — 2 parties
Anand, Viswanathan — 1 partie
Parties historiques
8.a3 — 89.8% (7995 parties)
1950 — Milic, Borislav vs Kevitz, Alexander — 1/2-1/2 — USA
1950 — Bondarevsky, Igor vs Sokolsky, Alexey — 1/2-1/2 — Moskou ch-URS
1950 — Gligoric, Sofija vs Rapaka Samuel Paul — 1/2-1/2 — radio
1950 — Borisenko, Georgy K vs Averbakh, Yuri L — 1/2-1/2 — Moskou ch-URS
1950 — Bronstein, David I vs Boleslavsky, Isaac — 1/2-1/2 — Budapest HUN
8.cxd5 — 7.2% (641 parties)
1951 — Prins, Lodewijk vs Kramer, Hanspeter — 1/2-1/2 — Travemunde
1952 — Trifunovic, Petar vs Bozic, Aleksandar — 1-0 — Belgrade SRB
1954 — Apelqvist, L. vs Broberger, Henry — 1-0 — Stockholm SWE
1954 — Kampenuss, Peteris vs Goldin, Vladimir M. — 1-0 — Riga LAT
1955 — Birbrager, Isaak vs Slivin, Aleksandr — 1-0 — Stalinabad
8.dxc5 — 1.0% (91 parties)
1950 — Rapaka Samuel Paul vs Gligoric, Svetozar — 1/2-1/2 — USA
1952 — Morcken, Otto B vs De Souza Mendes, Joao — 1/2-1/2 — Helsinki olm
1955 — Fuderer, Andrija vs Spassky, Boris Vasily — 1/2-1/2 — Goteborg SWE
1956 — Khalilbeili, Sultan vs Voronkov, Boris — 1/2-1/2 — Tbilisi GEO
1964 — Enevoldsen, Jens vs Kolvig, Bent — 1-0 — Copenhagen DEN
8.Ne2 — 0.8% (72 parties)
1950 — Bosch van Rosenthal, Edzard vs Donner, Jan-Hein — 1/2-1/2 — Amsterdam NED
1950 — Bosch van Rosenthal, Edzard vs Donner, Jan-Hein — 1/2-1/2 — Amsterdam NED
1950 — Alatortsev, Vladimir N. vs Petrosian, Tigran V. — 1/2-1/2 — Moskou ch-URS
1950 — Alatortsev, Vladimir N. vs Petrosian, Arshak B — 1/2-1/2 — URS-ch18 Moscow
1953 — Fairhurst, William vs Golombek, Harry — 1/2-1/2 — Glasgow SCO