B35b - 7…Qa5 - Accelerated Fianchetto, Modern (1960)

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B35b — Accelerated Fianchetto, Modern (1960)
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4 Qa5
Les coups candidats
8.O-O — 84.9% (5476 parties)
Ambassadeurs : Baumbach, Friedrich, Dr. (37x), Bellon Lopez, Juan Manuel (17x), Kagan, Shimon (15x), Toma, Katarzyna (13x), Toran Albero, Roman (12x), Reyes La Rosa, Juan (11x), Kapengut, Albert (10x), Giorgadze, Tamaz (8x)
8.f3 — 8.2% (527 parties)
Ambassadeurs : Brodie, Hugh (8x), Cvetanovic, Uros (3x), Irizanin, Radoje (3x), Matulovic, Milan (2x), Hatlebakk, Einar (2x), ? (2x), Gerland, Felix (2x), Ip, Vincent (2x)
8.Nb3 — 3.2% (206 parties)
Ambassadeurs : Brodie, Hugh (3x), Taylor, Gordon (2x), Horvath, Adam (2x), Hoffman, Alejandro (2x), Casa, Alex (1x), Forintos, Gyozo V (1x), Blackstone, John (1x), Suterday Silver (1x)
8.Qd2 — 1.5% (95 parties)
Ambassadeurs : Ankerst, Milka (2x), Brodie, Hugh (2x), Zarrouk B (1x), Watt, Daniel (1x), Frenkiel, H. (1x), Popov, Tair (1x), Freeman, Michael A (1x), Thackray, N. (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8.O-O 8.f3 8.Nb3 8.Qd2
<1800 473 75% 14% 4% 2%
1800-2200 2904 82% 10% 3% 2%
2200-2600 2031 92% 3% 4% 0%
2600+ 64 97% 2% 2% —
Évolution par décennie (% des parties)
Décennie N parties 8.O-O 8.f3 8.Nb3 8.Qd2
1950s 1 — 100% — —
1960s 313 91% 6% 2% 0%
1970s 404 91% 5% 2% 1%
1980s 225 89% 7% 3% 2%
1990s 856 81% 10% 5% 2%
2000s 1809 83% 9% 4% 2%
2010s 2369 85% 8% 3% 1%
2020s 473 86% 9% 1% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8.O-O 85% 86% +0.4%
8.f3 8% 9% ▲ +1.4%
8.Nb3 3% 1% ▼ -1.6%
8.Qd2 1% 1% -0.4%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 6 parties
Anand, Viswanathan — 3 parties
Carlsen, Magnus — 3 parties
Karpov, Anatoly — 1 partie
Hou, Yifan — 1 partie
Parties historiques
8.O-O — 84.9% (5476 parties)
1960 — Spassky, Boris V. vs Gurgenidze, Bukhuti — 1-0 — Leningrad ch-URS
1960 — Kofman, Abram R vs Gufeld, Eduard — 1-0 — Kiev UKR
1960 — Pustina, Ylvi vs Padevsky, Nikola — 1-0 — Varna Varna BUL
1960 — Sakharov, Yuri N vs Zimin, Yuri A — 1/2-1/2 — Kiev UKR
1961 — Kostov Petkov, Petko vs Filchev, Rusko — 1/2-1/2 — Sofia BUL
8.f3 — 8.2% (527 parties)
1959 — Gurgenidze, Bukhuti vs Geller, Alexander — 1-0 — Erevan ARM
1960 — Durão, Joaquim Manuel vs Pustina, Ylvi — 0-1 — Leipzig GER
1961 — Westerinen, Heikki M.J. vs Parma, Bruno — 1/2-1/2 — The Hague NED
1962 — Fabian, Jan vs Alster, Ladislav — 0-1 — Jablonec
1963 — O`Brien, Paul W vs Plachetka, Jan — 0-1 — Prague CZE
8.Nb3 — 3.2% (206 parties)
1967 — Blackstone, John vs Suterday Silver — 1-0 — Santa Monica, CA USA
1967 — Ducic, Bogdan vs Nora, Georges — 1/2-1/2 — Dieppe FRA
1968 — Heintze, Marion vs Espig, Christine — 1/2-1/2 — Neukieritzsch
1968 — Calvo José Minguez, Ricardo vs Toran Albero, Roman — 0-1 — Palma de Majorca ESP
1968 — Shmit, Anatoly vs Litynska, Marta — 0-1 — URS
8.Qd2 — 1.5% (95 parties)
1969 — Zarrouk B vs Watt, Daniel — 0-1 — ?
1970 — Theren, Ulf vs Bellon Lopez, Juan Manuel — 0-1 — Groningen NED
1973 — Freeman, Michael A vs Thackray, N. — 0-1 — Michigan
1975 — Jurado, Clement vs Romanishin, Oleg M — 0-1 — Olot
1981 — Frenkiel, H. vs Popov, Tair — 1-0 — Montreal CAN