D24l - 5…b5 6.e5 Nd5 7.a4 - QGA: Bogoljubow (1961)

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D24l — QGA: Bogoljubow (1961)
1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.Nc3 a6 5.e4 b5 6.e5 Nd5 7.a4
Les coups candidats
Ambassadeurs : Ibragimov, Ildar (10x), Yakovich, Yuri (7x), Miles, Anthony J (6x), Van der Sterren, Paul (5x), Giertz, Niklaus (5x), Schulz, Klaus-Juergen (5x), Bruk, Ofer (4x), Sosonko, Gennadi (4x)
Ambassadeurs : Stevic, Hrvoje (10x), Fominyh, Alexander (9x), Zoebisch, Herbert (6x), Sakaev, Konstantin (6x), Sulava, Nenad (6x), Miles, Anthony J (5x), Kramnik, Vladimir (4x), Van Wely, Loek (4x)
Ambassadeurs : Gufeld, Eduard (2x), Vranesic, Zvonko (2x), Bronstein, David I (2x), Dautov, Rustem (2x), Cebalo, Miso (2x), Wahjuwidajat, Utut Adianto (2x), Zubac, Marius (2x), Mamedyarov, Shakhriyar (2x)
Ambassadeurs : Knaak, Rainer (3x), Bernard, Ryszard (3x), ? (3x), Grivas, Efstratios (2x), Paehtz, Thomas (2x), Behrmann, Klaus Joergen (2x), Murshed, Niaz (2x), Szieberth, Adam (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…Nxc3 7…e6 7…Bb7 7…c6
<1800 28 36% 14% 14% 21%
1800-2200 279 39% 30% 16% 7%
2200-2600 750 41% 35% 10% 7%
2600+ 42 12% 76% 10% —
Évolution par décennie (% des parties)
Décennie N parties 7…Nxc3 7…e6 7…Bb7 7…c6
1950s 2 100% — — —
1960s 46 61% — 24% 9%
1970s 37 62% — 11% 24%
1980s 166 57% 3% 7% 16%
1990s 290 50% 22% 8% 12%
2000s 398 38% 42% 9% 6%
2010s 249 29% 43% 21% 2%
2020s 94 10% 63% 17% 6%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…Nxc3 29% 10% ▼ -19.7%
7…e6 43% 63% ▲ +19.8%
7…Bb7 21% 17% ▼ -3.9%
7…c6 2% 6% ▲ +4.0%
Joueurs célèbres
Champions du monde dans cette position
Kramnik, Vladimir — 4 parties
Kasparov, Garry — 1 partie
Parties historiques
7…Nxc3 — 41.1% (527 parties)
1952 — Bronstein, David I vs Byrne, Robert E — 0-1 — Helsinki olm
1954 — Miguel, Nahuel vs De Souza Mendes, Joao — 1-0 — Mar del Plata/Buenos Aires
1962 — Mititelu, Gheorghe vs Dunkelblum, Arthur — 1-0 — Bucharest ROU
1963 — Lazarev, Efim M. vs Kogan, Boris M — 0-1 — Kiev UKR
1964 — Arthur, Chris vs Winser, William Arthur — 1-0 — ?
7…e6 — 31.5% (404 parties)
1988 — Semenov, Valeri vs Fominyh, Alexander — 1/2-1/2 — USSR
1988 — Sherbakov, Vladimir vs Fominyh, Alexander — 1-0 — RSFSR ch sf
1988 — Raetsky, Alexander vs Fominyh, Alexander — 1/2-1/2 — Voronezh RUS
1989 — Maksimovic, Suzana vs Bojkovic, Natasa — 1/2-1/2 — Split CRO
1989 — Lautier, Joel vs Andersson, Ulf — 1/2-1/2 — Cannes FRA
7…Bb7 — 12.0% (154 parties)
1963 — Taimanov, Mark vs Novopashin, Arkady — 1/2-1/2 — Leningrad ch-URS
1964 — Gufeld, Eduard vs Kogan, Boris — 1-0 — Ukraine ch
1964 — Gufeld, Eduard vs Kogan, Boris M — 1-0 — Kiev UKR
1964 — Bronstein, David I vs Liavdansky, Vladimir — 1-0 — Kiev ch-URS
1964 — Bronstein, David I vs Ljavdansky, Vladimir — 1-0 — Kiev UKR
7…c6 — 8.5% (109 parties)
1966 — Polugaevsky, Lev vs Gurgenidze, Bukhuti — 1/2-1/2 — Tbilisi ch-URS
1966 — Johannessen, Svein vs Lundin, Erik Sverige — 0-1 — ?
1968 — Gufeld, Eduard vs Mikadze, Zurab — 1/2-1/2 — Gori
1969 — Litmanowicz, Miroslawa vs Nowarra, Waltraud — 1-0 — Lublin POL
1972 — Knaak, Rainer vs Hoeckendorf, Hartmut — 1-0 — Strausberg