D74f - 7…c5 8.e4 - Neo-Gruenfeld [+0.45]

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D74f — Neo-Gruenfeld
1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.cxd5 Nxd5 7.O-O c5 8.e4
Eval: [+0.45]
Les coups candidats
Ambassadeurs : Nepomniachtchi, Ian (7x), Najdorf, Miguel (5x), Tomczak, Jacek (5x), Szabo, Ladislav (3x), Donner, Jan-Hein (3x), Botvinnik, Mikhail (3x), Yuferov, Sergey N (3x), Boleslavsky, Isaac (2x)
8…Nb6 — 24.9% (68 parties)
Ambassadeurs : Fairhurst, William (3x), Foltys, Jan (3x), Walker, Martin G (3x), Szabados, Eugenio (2x), Maderna, Carlos (2x), Wexler, Bernardo (2x), Donner, Jan-Hein (2x), Lehmann, Heinz (2x)
8…Nb4 — 6.2% (17 parties)
Ambassadeurs : Matchett (1x), May, Hans Werner (1x), Castagna, Rino (1x), Gereben, Erno (1x), Cividali, Emilio (1x), Fasoli, S. (1x), ? (1x), Byrne, Stewart (1x)
8…Nc7 — 1.1% (3 parties)
Ambassadeurs : Kozlov, Vladimir E (1x), Tunik, Gennady (1x), Franklin, Samuel G A (1x), Wilson, Alexandra (1x), Stupak, Kirill (1x), Orlynskaya Darya (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8…Nf6 8…Nb6 8…Nb4 8…Nc7
<1800 1 100% — — —
1800-2200 58 62% 22% 14% 2%
2200-2600 112 71% 24% 4% —
2600+ 16 88% 12% — —
Évolution par décennie (% des parties)
Décennie N parties 8…Nf6 8…Nb6 8…Nb4 8…Nc7
1930s 1 100% — — —
1940s 21 62% 38% — —
1950s 36 69% 28% 3% —
1960s 12 58% 33% 8% —
1970s 3 67% 33% — —
1980s 13 69% 15% 8% 8%
1990s 17 59% 29% 12% —
2000s 42 69% 19% 7% 5%
2010s 104 72% 23% 5% —
2020s 24 58% 25% 17% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8…Nf6 72% 58% ▼ -13.8%
8…Nb6 23% 25% ▲ +1.9%
8…Nb4 5% 17% ▲ +11.9%
8…Nc7 0% 0% +0.0%
Joueurs célèbres
Champions du monde dans cette position
Botvinnik, Mikhail — 4 parties
Smyslov, Vladimir — 3 parties
Alekhine, Alexander — 1 partie
Euwe, Max — 1 partie
Gukesh D — 1 partie
Parties historiques
8…Nf6 — 67.8% (185 parties)
1937 — Alekhine, Alexander vs Mikenas, Vladas — 0-1 — Kemeri LAT
1944 — Ragozin, Viacheslav vs Tolush, Alexander — 0-1 — Moskou ch-URS
1944 — Lisitsin, Georgy vs Tolush, Alexander — 1-0 — Ch URS Moscow RUS
1945 — Eliskases, Erich vs Cruz, Walter — 1-0 — Rio de Janeiro BRA
1947 — Pilnik, Herman vs Bolbochan, J. — 1/2-1/2 — Mar del Plata ARG
8…Nb6 — 24.9% (68 parties)
1947 — Fairhurst, William vs Flohr, Salo — 1/2-1/2 — London ENG-USSR
1947 — Botvinnik, Mikhail vs Novotelnov, Nikolai — 1-0 — Moscow RUS
1949 — Fairhurst, William vs Rhodes, Herbert Gibson — 1-0 — Felixstowe
1949 — Fairhurst, William vs Rhodes, H. — 1-0 — Felixstowe
1949 — Germek, Milan vs Milic, Borislav — 0-1 — Zagreb ch YUG
8…Nb4 — 6.2% (17 parties)
1959 — Matchett vs May, Hans Werner — 0-1 — Bognor Regis
1962 — Castagna, Rino vs Gereben, Erno — 0-1 — It IIb Beverwijk NED
1988 — Cividali, Emilio vs Fasoli, S. — 1-0 — ?
1993 — Kustar, Sandor vs Nogrady, Vilmos — 0-1 — Budapest HUN
1998 — ? vs Byrne, Stewart — 1-0 — Melbourne AUS
8…Nc7 — 1.1% (3 parties)
1984 — Kozlov, Vladimir E vs Tunik, Gennady — 0-1 — URS
2006 — Stupak, Kirill vs Orlynskaya Darya — 0-1 — Dnepropetrovsk UKR
2007 — Franklin, Samuel G A vs Wilson, Alexandra — 0-1 — Wokefield Park ENG