Fin du contenu

Aucune page supplémentaire à charger

A33o — Symmetrical, Geller Variation (1950)
1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Nc6 6.g3 Qb6
Les coups candidats
Ambassadeurs : Korchnoi, Viktor (12x), Ivanovic, Bozidar (9x), Karpov, Anatoly (9x), Gulko, Boris (9x), Greenfeld, Alon (8x), Szerlak, Andrzej (8x), Adorjan, Andras (7x), Dvoirys, Semen I. (7x)
7.Ndb5 — 33.2% (747 parties)
Ambassadeurs : Agrest, Evgenij (16x), Greenfeld, Alon (8x), Luers, Lavas (8x), Ponkratov, Pavel (7x), Gelfand, Boris (7x), Emms, John M (6x), Shchekachev, Andrei (6x), Adorjan, Andras (5x)
7.e3 — 5.6% (125 parties)
Ambassadeurs : Pomar Salamanca, Arturo (3x), Rogulj, Branko (3x), Kholmov, Ratmir D (2x), Vachier-Lagrave, Maxime (2x), Pech, Stepan (2x), Foltys, Jan (1x), Pirc, Vasja (1x), Thibaut, Georges (1x)
7.Nc2 — 5.2% (117 parties)
Ambassadeurs : Beliavsky, Alexander G (2x), Fatalibekova, Elena (2x), Robatsch, Karl (1x), Langeweg, Kick (1x), Taimanov, Mark (1x), Korchnoi, Viktor (1x), Gabdrakhmanov, Rafail (1x), Dvoirys, Semen I. (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7.Nb3 7.Ndb5 7.e3 7.Nc2
<1800 79 51% 23% 18% 6%
1800-2200 497 51% 34% 6% 4%
2200-2600 1281 53% 34% 5% 6%
2600+ 151 40% 50% 1%
Évolution par décennie (% des parties)
Décennie N parties 7.Nb3 7.Ndb5 7.e3 7.Nc2
1950s 6 33% 17% 50%
1960s 7 14% 29% 29%
1970s 107 78% 7% 3% 12%
1980s 202 84% 10% 1% 5%
1990s 361 66% 26% 4% 4%
2000s 456 50% 35% 5% 7%
2010s 825 43% 42% 7% 4%
2020s 288 42% 43% 7% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7.Nb3 43% 42% ▼ -0.7%
7.Ndb5 42% 43% ▲ +1.1%
7.e3 7% 7% -0.1%
7.Nc2 4% 3% ▼ -1.1%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 10 parties
Kramnik, Vladimir — 7 parties
Anand, Viswanathan — 6 parties
Kasparov, Garry — 4 parties
Tal, Mikhail — 3 parties
Carlsen, Magnus — 3 parties
Smyslov, Vladimir — 1 partie
Ju, Wenjun — 1 partie
Parties historiques
7.Nb3 — 53.1% (1196 parties)
1950 — Rossolimo, Nicolas vs Milic, Borislav — 1-0 — Paris FRA
1955 — Taimanov, Mark vs Geller, Efim P. — 1-0 — Moscow RUS
1968 — Benko, Pal vs Rapaka Samuel Paul — 1-0 — New York ch-USA
1970 — Furman, Albert vs Gipslis, Aivars — 1-0 — Leningrad RUS
1970 — Portisch, Lajos vs Korchnoi, Viktor — 1/2-1/2 — Belgrade SRB
7.Ndb5 — 33.2% (747 parties)
1955 — Byrne, David vs Geller, Efim P. — 0-1 — Moscow RUS
1970 — Pomar Salamanca, Arturo vs Miguel, Nahuel — 1/2-1/2 — Siegen olm
1974 — Webb, Samuel vs Abderrahmane Ely — 1-0 — Clacton ch-BCF
1974 — Sarosy, Zoltan L vs Dravnieks, Olgerts — 1-0 — Canada ch-30 7475
1974 — Lactin, Derek vs Roys, Harvey C. — 1-0 — ?
7.e3 — 5.6% (125 parties)
1950 — Foltys, Jan vs Pirc, Vasja — 1/2-1/2 — Amsterdam NED
1955 — Lein, Anatoly vs Kholmov, Ratmir D — 0-1 — Voroshilovgrad
1959 — Bobotsov, Milko G vs Hadjipetrov, Alexander — 1/2-1/2 — BUL-ch Sofia BUL
1960 — Hort, Vlastimil vs Kholmov, Ratmir D — 1/2-1/2 — Moscow RUS
1968 — Thibaut, Georges vs Verstraeten, Roland — 1/2-1/2 — Brussels BEL
7.Nc2 — 5.2% (117 parties)
1961 — Robatsch, Karl vs Langeweg, Kick — 1/2-1/2 — Utrecht NED
1967 — Taimanov, Mark vs Korchnoi, Viktor — 1/2-1/2 — Tallinn zt plof
1972 — Inkiov, Ventzislav vs Bielczyk, Jacek — 0-1 — Groningen EU-ch J
1973 — Makropoulos, Georgios vs Varasdy, Imre — 1/2-1/2 — Groningen NED
1974 — Titorenko, Natalia I vs Fatalibekova, Elena — 1-0 — Moscow RUS