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A33q — Symmetrical, Geller (1970)
1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Nc6 6.g3 Qb6 7.Nb3 Ne5
Les coups candidats
8.e4 — 91.8% (888 parties)
Ambassadeurs : Korchnoi, Viktor (8x), Rogulj, Branko (8x), Greenfeld, Alon (7x), Szerlak, Andrzej (7x), Vaganian, Rafael A (6x), Gulko, Boris (6x), Köstner, Wolfgang (6x), Portisch, Lajos (5x)
8.Bg2 — 5.5% (53 parties)
Ambassadeurs : Girard, Eric (5x), Dubov, Daniil (3x), Lalit Babu M R (2x), Tatai, Stefano (1x), Bobotsov, Milko G (1x), Kindsvogel, Robert (1x), Lindemann, Stefan (1x), Obierak, Wladyslaw (1x)
8.c5 — 0.8% (8 parties)
Ambassadeurs : Le Corre, Alexandre (1x), Balza, Fernando (1x), Rajlich, Iweta (1x), Danielian, Elina (1x), Kosarev, Dmitry (1x), Frolochkin, Vladimir (1x), Jorge Alberto Ortiz Molina (1x), Sulskis, Sarunas (1x)
8.Qd4 — 0.6% (6 parties)
Ambassadeurs : Agrest, Evgenij (2x), Ernst, Thomas (1x), Gdanski, Jacek (1x), Bagheri, Maziar (1x), Idani, Pouya (1x), AlHuwar, Jasem (1x), Sharapov, Yevhen (1x), Dgebuadze, Alexandre (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8.e4 8.Bg2 8.c5 8.Qd4
<1800 35 97%
1800-2200 221 91% 6% 1% 0%
2200-2600 552 91% 6% 1% 1%
2600+ 57 95% 5%
Évolution par décennie (% des parties)
Décennie N parties 8.e4 8.Bg2 8.c5 8.Qd4
1950s 2 100%
1970s 46 98% 2%
1980s 75 100%
1990s 190 96% 3% 1%
2000s 199 91% 6% 2%
2010s 344 88% 8% 1% 1%
2020s 111 91% 5% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8.e4 88% 91% ▲ +3.2%
8.Bg2 8% 5% ▼ -3.9%
8.c5 1% 2% ▲ +0.9%
8.Qd4 1% 0% ▼ -1.2%
Joueurs célèbres
Champions du monde dans cette position
Kramnik, Vladimir — 5 parties
Karpov, Anatoly — 4 parties
Anand, Viswanathan — 3 parties
Tal, Mikhail — 1 partie
Carlsen, Magnus — 1 partie
Parties historiques
8.e4 — 91.8% (888 parties)
1950 — Rossolimo, Nicolas vs Milic, Borislav — 1-0 — Paris FRA
1955 — Taimanov, Mark vs Geller, Efim P. — 1-0 — Moscow RUS
1970 — Furman, Albert vs Gipslis, Aivars — 1-0 — Leningrad RUS
1970 — Portisch, Lajos vs Korchnoi, Viktor — 1/2-1/2 — Belgrade SRB
1970 — Portisch, Lajos vs Korchnoi, Viktor — 1/2-1/2 — Belgrade SRB
8.Bg2 — 5.5% (53 parties)
1972 — Tatai, Stefano vs Bobotsov, Milko G — 1/2-1/2 — Bari ITA
1994 — Hinev, Dimitar vs Wassin, Sergej — 1-0 — Ustron
1994 — Kraschl, Joerg vs Titz, Heimo — 1-0 — AUT-ch Austria
1995 — Berresheim, Helmut vs Boeringer, Armin — 1/2-1/2 — RLP Rp-ch Hachenburg
1996 — Obierak, Wladyslaw vs Goryachkin, Vyacheslav — 1-0 — ?
8.c5 — 0.8% (8 parties)
2002 — Le Corre, Alexandre vs Balza, Fernando — 0-1 — IECG
2003 — Rajlich, Iweta vs Danielian, Elina — 0-1 — Plovdiv BUL
2006 — Kosarev, Dmitry vs Frolochkin, Vladimir — 1/2-1/2 — St Petersburg RUS
2012 — Jorge Alberto Ortiz Molina vs Sulskis, Sarunas — 0-1 — Ortisei ITA
2014 — Harman, Kenneth B vs Rutten, Bram — 1-0 — ICCF
8.Qd4 — 0.6% (6 parties)
1990 — Agrest, Evgenij vs Gdanski, Jacek — 1-0 — Bielsko Biala op
1995 — Agrest, Evgenij vs Ernst, Thomas — 1-0 — Stockholm SWE
2010 — AlHuwar, Jasem vs Sharapov, Yevhen — 0-1 — Dubai UAE
2014 — Bagheri, Maziar vs Idani, Pouya — 0-1 — Mashhad
2016 — Dgebuadze, Alexandre vs Hautot, Stephane — 1/2-1/2 — Buetgenbach BEL