E49e - 7…dxc4 8.Bxc4 c5 - Botvinnik (1949)

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E49e — Botvinnik (1949)
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.a3 Bxc3+ 7.bxc3 dxc4 8.Bxc4 c5
Les coups candidats
9.Ne2 — 50.3% (1018 parties)
Ambassadeurs : Vetokhin, Savva (11x), Sarana, Alexey (11x), Gaw, Chloe (11x), Kozak, Adam (10x), Tin, Jingyao (9x), Hoi, Carsten (8x), Kosteniuk, Alexandra (6x), Bulmaga, Irina (5x)
9.Nf3 — 40.9% (827 parties)
Ambassadeurs : Levitt, Jonathan P (12x), Gulko, Boris (9x), Milov, Vadim (8x), Grebnev, Aleksey (7x), Injac, Teodora (7x), Tudor, Henry Edward (6x), Fessler, Stephan (5x), Evans, Gordon R Dr (5x)
9.Bd3 — 4.4% (89 parties)
Ambassadeurs : Milov, Vadim (8x), Sarana, Alexey (3x), Khanin, Semen (3x), Perkins, Alan H (2x), Short, Nigel D (2x), Campani, Paolo (2x), Lein, Anatoly (1x), Platonov, Igor (1x)
9.Bb2 — 3.9% (78 parties)
Ambassadeurs : Souto, Alejandro (7x), Milov, Vadim (6x), Botvinnik, Mikhail (3x), Bouwmeester, Hans (2x), Addison, Wiliam G (2x), Rapaka Samuel Paul (2x), Tiviakov, Sergei (2x), Granda Zuniga, Julio E (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9.Ne2 9.Nf3 9.Bd3 9.Bb2
<1800 44 36% 43% 11% 9%
1800-2200 431 51% 40% 4% 3%
2200-2600 1254 53% 39% 4% 3%
2600+ 157 42% 48% 6% 3%
Évolution par décennie (% des parties)
Décennie N parties 9.Ne2 9.Nf3 9.Bd3 9.Bb2
1950s 38 50% 39% 3% 8%
1960s 16 38% 56% 6% —
1970s 38 32% 47% 8% 13%
1980s 59 54% 41% 2% 3%
1990s 159 42% 46% 4% 8%
2000s 196 42% 44% 6% 8%
2010s 331 38% 49% 4% 8%
2020s 1187 57% 37% 4% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9.Ne2 38% 57% ▲ +19.2%
9.Nf3 49% 37% ▼ -12.3%
9.Bd3 4% 4% ▲ +0.8%
9.Bb2 8% 1% ▼ -7.0%
Joueurs célèbres
Champions du monde dans cette position
Botvinnik, Mikhail — 3 parties
Carlsen, Magnus — 3 parties
Gukesh D — 2 parties
Ju, Wenjun — 2 parties
Karpov, Anatoly — 1 partie
Ding, Liren — 1 partie
Anand, Viswanathan — 1 partie
Parties historiques
9.Ne2 — 50.3% (1018 parties)
1950 — Chaude de Silans, Chantal vs Keller-Hermann, Edith — 1-0 — Moscow RUS
1950 — Collet, Hugo vs Donner, Jan-Hein — 0-1 — Beverwijk NED
1950 — Collet, Hugo vs Donner, Jan-Hein — 0-1 — Beverwijk NED
1950 — Collins Justin vs Napolitano, Matteo — 0-1 — corr Wch1
1950 — Ojanen, Kaarle S vs Bolbochan, Julio — 0-1 — Dubrovnik CRO
9.Nf3 — 40.9% (827 parties)
1950 — Sanguinetti, Ricardo vs Rossolimo, Nicolas — 0-1 — Mar del Plata ARG
1950 — Arlamowski, Edward vs Pogats, Jozsef Jr. — 1-0 — Schiavno Zdroj
1950 — Bondarevsky, Igor vs Pogats, Jozsef Jr. — 1-0 — Schiavno Zdroj
1951 — Mueller, Claus vs Platz, Hans — 0-1 — Schwerin GER
1952 — Magrin, Antonio vs Baldanello, Mario — 1-0 — Ferrara
9.Bd3 — 4.4% (89 parties)
1951 — Moiseev, Oleg vs Bondarevsky, Igor — 1-0 — URS-ch sf Leningrad RUS
1968 — Lein, Anatoly vs Platonov, Igor — 1-0 — Alma Ata ch-URS
1971 — Perkins, Alan H vs Ludgate, Alan — 1-0 — BCF-ch Blackpool ENG
1975 — Perkins, Alan H vs Abderrahmane Ely — 1/2-1/2 — Morecambe ch-BCF
1976 — Grassi, Aldo vs Padula, Roberto — 1-0 — ?
9.Bb2 — 3.9% (78 parties)
1952 — Botvinnik, Mikhail vs Anay Barche — 1/2-1/2 — Budapest HUN
1955 — Botvinnik, Mikhail vs Furman, Semyon — 1-0 — Moskou ch-URS
1958 — Botvinnik, Mikhail vs Unzicker, Ferdinand, Dr. — 1/2-1/2 — Munchen olm
1970 — Addison, Wiliam G vs Rapaka Samuel Paul — 1/2-1/2 — Palma de Mallorca izt
1970 — Addison, Wiliam G vs Rapaka Samuel Paul — 1/2-1/2 — Palma de Majorca ESP