E90r - 5…O-O 6.h3 e5 7.d5 Nbd7 8.Be3

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E90r —
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.h3 e5 7.d5 Nbd7 8.Be3
Les coups candidats
8…Nc5 — 47.8% (673 parties)
Ambassadeurs : Larsen, Benjamin Holsko (5x), Bagirov, Vladimir (5x), Roeder, Matthias (5x), Hoi, Carsten (5x), Pichot, Alan (5x), Westerinen, Heikki M.J. (5x), Fedukin, Alexandre (4x), Verat, Laurent (3x)
8…a5 — 16.5% (233 parties)
Ambassadeurs : Kaiser, Wolfgang (2x), Sulava, Nenad (2x), Gerhardt Sabine (2x), Barsov, Alexei (2x), Terraz, Christian (2x), Merino Garcia, Rafael 1982 (2x), Lucena, Lincoln (2x), Van Hoolandt, Patrick (2x)
8…Nh5 — 10.7% (151 parties)
Ambassadeurs : Geller, Efim P. (2x), Starck, Bodo (2x), Vogt, Lothar (2x), Colmer, Willi (2x), Lacroix, Serge (2x), Petrosian, Tigran V. (1x), Giorgadze, Giorgi (1x), Kotlerman, Samuel (1x)
8…Ne8 — 8.7% (123 parties)
Ambassadeurs : Wachinger, Guenther (2x), Rios Parra, Alejandro (2x), Kavalek, Lubomir (1x), Mestrovic, Zvonimir (1x), Polugaevsky, Lev (1x), Torre, Eugenio (1x), Arlandi, Ennio (1x), Piket, Marcel (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8…Nc5 8…a5 8…Nh5 8…Ne8
<1800 77 26% 14% 13% 16%
1800-2200 505 37% 18% 13% 11%
2200-2600 507 64% 16% 9% 4%
2600+ 14 71% 21% 7% —
Évolution par décennie (% des parties)
Décennie N parties 8…Nc5 8…a5 8…Nh5 8…Ne8
1920s 3 — — — —
1930s 6 67% — 17% —
1940s 10 70% — 30% —
1950s 7 29% 43% — —
1960s 17 53% 6% 18% 6%
1970s 25 52% 12% 20% 8%
1980s 118 63% 16% 7% 8%
1990s 289 45% 18% 12% 9%
2000s 238 34% 19% 11% 13%
2010s 508 46% 18% 11% 8%
2020s 188 63% 9% 8% 7%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8…Nc5 46% 63% ▲ +17.2%
8…a5 18% 9% ▼ -9.3%
8…Nh5 11% 8% ▼ -2.8%
8…Ne8 8% 7% ▼ -0.8%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 3 parties
Anand, Viswanathan — 2 parties
Fischer, Robert James — 1 partie
Ju, Wenjun — 1 partie
Parties historiques
8…Nc5 — 47.8% (673 parties)
1930 — Rey Ardid, Ramon vs Golmayo Torriente, Manuel — 1/2-1/2 — Madrid m ch-ESP
1931 — Sozin, Veniamin vs Kasparian, Genrikh — 1/2-1/2 — Moskou ch-URS
1931 — Sozin, Veniamin vs Kasparian, Genrikh — 1/2-1/2 — USSR ch
1935 — Maderna, Carlos vs Pelikan, Jan — 0-1 — Warsaw POL
1942 — Czerniak, Moshe vs Iliesco, Juan — 1-0 — Mar del Plata ARG
8…a5 — 16.5% (233 parties)
1952 — Paiva, Omar vs Cordioli, Lourenco Joao — 1-0 — Sao Paulo BRA
1953 — Flir Erich vs Milic, Borislav — 0-1 — Vienna AUT
1955 — Humphrey, Albert vs Fischer, Robert James — 1/2-1/2 — Lake Mohegan, NY
1963 — Liberzon, Vladimir M vs Cuijpers, Frans Andre — 1-0 — Moscow RUS
1972 — Sbia, Bachir vs Hoong Chee, Loh — 1/2-1/2 — Skopje ol (Men) fin-D
8…Nh5 — 10.7% (151 parties)
1937 — Prokop, Frantisek vs Eliskases, Erich — 0-1 — Prague CZE
1947 — Petrosian, Tigran V. vs Giorgadze, Giorgi — 1-0 — Tbilisi GEO
1949 — Kotlerman, Samuel vs Geller, Efim P. — 0-1 — Odessa UKR
1949 — Kotlerman vs Geller, Efim P. — 0-1 — Odessa UKR
1962 — Ayriss, Alan Lawrence vs Paige, Roger Leslie — 1-0 — Bognor Regis
8…Ne8 — 8.7% (123 parties)
1968 — Kavalek, Lubomir vs Mestrovic, Zvonimir — 1-0 — Sarajevo BIH
1972 — Poulette, Roland vs Kirby Jack — 0-1 — ?
1976 — Polugaevsky, Lev vs Torre, Eugenio — 1-0 — Manila PHI
1983 — Mukhwana Gene Pence Barasa vs Andia Pinto, Mateo — 1-0 — Ann Arbor ch-MI op
1984 — Borik, Annette vs Kretz, Johan — 1-0 — Berlin-West