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B33c — Open (1961)
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Qb6 6.Nb3 e6 7.Bd3
Les coups candidats
7…a6 — 43.3% (1142 parties)
Ambassadeurs : Smithers, Steven (13x), Arzumanian, Georgii (12x), Da Silva Filho, Alcindo Luz Bastos (12x), Kurajica, Bojan (12x), Maryasin, Boris (12x), Knezevic, Bojan (9x), Barlov, Dragan (9x), Pohjosmäki, Risto (9x)
7…Be7 — 25.6% (675 parties)
Ambassadeurs : Da Silva Filho, Alcindo Luz Bastos (21x), Akopian, Vladimir (16x), Grivas, Efstratios (14x), Vokac, Marek (9x), Carlier, Bruno (6x), Efimov, Igor (6x), Martinovic, Slobodan (6x), Fominyh, Alexander (6x)
7…d6 — 19.3% (509 parties)
Ambassadeurs : Grivas, Efstratios (66x), Peschardt, Søren (26x), Cabrilo, Goran (12x), Kononenko, Dmitry (9x), Ambasa Ingrio (9x), Kurajica, Bojan (8x), Szymanski, Robert (8x), Vouldis, Angelos (6x)
7…Bb4 — 8.6% (226 parties)
Ambassadeurs : Karasev, Vladimir (12x), Rosen, Willy (10x), Reshko, Aron (5x), Forintos, Gyozo V (4x), Mokrys, Christian-Peter (4x), Tringov, Georgi P (3x), Suetin, Alexey S (3x), Kouatly, Bachar (3x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…a6 7…Be7 7…d6 7…Bb4
<1800 57 42% 26% 12% 16%
1800-2200 662 45% 27% 16% 9%
2200-2600 1728 44% 25% 21% 7%
2600+ 41 29% 37% 27% —
Évolution par décennie (% des parties)
Décennie N parties 7…a6 7…Be7 7…d6 7…Bb4
1960s 32 28% 38% 9% 25%
1970s 43 26% 40% 5% 28%
1980s 176 52% 31% 7% 9%
1990s 515 35% 30% 24% 9%
2000s 825 43% 22% 25% 7%
2010s 884 47% 26% 16% 7%
2020s 163 48% 18% 12% 13%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…a6 47% 48% ▲ +1.6%
7…Be7 26% 18% ▼ -7.6%
7…d6 16% 12% ▼ -4.1%
7…Bb4 7% 13% ▲ +6.6%
Joueurs célèbres
Champions du monde dans cette position
Anand, Viswanathan — 3 parties
Tal, Mikhail — 2 parties
Kasparov, Garry — 1 partie
Parties historiques
7…a6 — 43.3% (1142 parties)
1967 — Tringov, Georgi P vs Kavalek, Lubomir — 1/2-1/2 — Sarajevo BIH
1968 — Janosevic, Dragoljub vs Kelecevic, Nedeljko — 1-0 — Sarajevo BIH
1968 — Blackstock, Leslie Steven F vs Van der Weide, Piet — 0-1 — London ENG
1968 — Barczay, Laszlo vs Kavalek, Lubomir — 1/2-1/2 — Sarajevo BIH
1968 — Kurajica, Bojan vs Van der Weide, Piet — 1-0 — Islington op
7…Be7 — 25.6% (675 parties)
1962 — Medina-Garcia, Antonio vs Gilden, Lawrence — 1-0 — San Antonio, TX USA
1966 — Minev, Nikolay N vs Olafsson, Fridrik — 1/2-1/2 — Havana olm
1966 — Janosevic, Dragoljub vs Minev, Nikolay N — 1/2-1/2 — Sarajevo BIH
1966 — Haag, Ervin vs Polgar, Istvan — 1/2-1/2 — HUN
1967 — Garcia Martinez, Silvino vs Polgar, Istvan — 0-1 — Harrachov
7…d6 — 19.3% (509 parties)
1961 — Savon, Vladimir vs Gusev, Yuri S — 1-0 — URS-ch29 sf Novgorod
1966 — Ostojic, Aleksa vs Van der Weide, Jelmer — 1-0 — Zwolle NED
1968 — Kurajica, Bojan vs Van der Weide, Piet — 1-0 — London ENG
1971 — Noordhoff, Enno vs Wellner, Jakob — 0-1 — NOSBO ch
1977 — Filipowicz, Andrzej vs Gulko, Boris — 1/2-1/2 — Polanica Zdroj POL
7…Bb4 — 8.6% (226 parties)
1963 — Bukhover, A vs Dzindzichashvili, Roman — 1-0 — Moscow RUS
1966 — Suetin, Alexey S vs Reshko, Aron — 1-0 — URS
1966 — Polugaevsky, Lev vs Reshko, Aron — 1-0 — Moscow Tch-SU
1967 — Tringov, Georgi P vs Forintos, Gyozo V — 1/2-1/2 — Belgrade SRB
1967 — Tringov, Georgi P vs Forintos, Gyozo V — 1/2-1/2 — Liberation Belgrade YUG