D91a - 5…c6 - Gruenfeld (1958)

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D91a —
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 c6
Les coups candidats
6.e3 — 82.7% (1296 parties)
Ambassadeurs : Grivas, Efstratios (6x), Skembris, Spyridon (4x), Malich, Burkhard, Dr. (3x), Banusz, Tamas (3x), Bemporad, Filippo (3x), Siegmund, Rainer (3x), Just, Joachim (3x), Ertbjerg, Per (3x)
6.cxd5 — 9.3% (146 parties)
Ambassadeurs : Barton, Dave (4x), Stewart, Jim (3x), Elder Nancy (2x), Lanzani, Mario Lorenzo (2x), Haik, Aldo (2x), Meduna, Eduard (2x), Casey, Kevin (2x), Jarve, Edvin (2x)
6.Bxf6 — 3.8% (59 parties)
Ambassadeurs : Chernikov, Oleg L (2x), Sanguineti, Raúl Carlos (1x), Flores Alvarez, Rodrigo (1x), Ghitescu, Theodor (1x), Malich, Burkhard, Dr. (1x), Bermejo Edgardo (1x), Carames, Luis (1x), Bekker-Jensen, Dorte (1x)
6.Qd2 — 1.4% (22 parties)
Ambassadeurs : Powell, John (1x), Dorsch, Thomas (1x), Aldrich, Jeff (1x), Miller, Daniel (1x), Zeidenweber, J (1x), Ocampo Vargas, Raul (1x), Falkowski, Kacper (1x), Hayes, Richard Thomas (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6.e3 6.cxd5 6.Bxf6 6.Qd2
<1800 101 83% 6% 4% 3%
1800-2200 714 86% 8% 4% 1%
2200-2600 264 81% 11% 6% —
2600+ 6 83% — — —
Évolution par décennie (% des parties)
Décennie N parties 6.e3 6.cxd5 6.Bxf6 6.Qd2
1920s 1 100% — — —
1930s 2 100% — — —
1940s 1 100% — — —
1950s 4 50% — 25% 25%
1960s 25 80% 12% 8% —
1970s 22 82% 14% — 5%
1980s 69 75% 20% — 3%
1990s 326 81% 11% 3% 1%
2000s 532 86% 7% 3% 2%
2010s 516 82% 8% 5% 1%
2020s 70 79% 16% 1% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6.e3 82% 79% ▼ -3.6%
6.cxd5 8% 16% ▲ +7.4%
6.Bxf6 5% 1% ▼ -3.8%
6.Qd2 1% 1% +0.5%
Joueurs célèbres
Champions du monde dans cette position
Kasparov, Garry — 2 parties
Smyslov, Vladimir — 1 partie
Parties historiques
6.e3 — 82.7% (1296 parties)
1923 — Prochazka, H. vs Berger Chepurniak, Violetta — 1-0 — Pardubice CZE
1937 — Prokop, Frantisek vs Opocensky, Karel — 0-1 — Praag Kautsky mem
1937 — Veerkamp, Jan vs Cortlever, Nico — 1-0 — Amsterdam NED
1941 — Guimard, Carlos E vs Maderna, Carlos — 1/2-1/2 — Argentina
1956 — Zheliandinov, Viktor vs Shamaev, Leonid Ivanovich — 0-1 — Soviet Union
6.cxd5 — 9.3% (146 parties)
1963 — Koblencs, Alexander vs Zdanovs, Igors — 0-1 — Riga LAT
1966 — Averbach, Y. vs Kortchnoi, V. — 0-1 — Moscow RUS
1969 — Benko, Pal vs Martinovsky, Eugene — 1-0 — United States of America
1976 — Nakagawa, Emiko vs Elder Nancy — 1/2-1/2 — Haifa ISR
1976 — Haik, Aldo vs Akvist, Hakan — 1/2-1/2 — Reggio Emilia ITA
6.Bxf6 — 3.8% (59 parties)
1959 — Sanguineti, Raúl Carlos vs Flores Alvarez, Rodrigo — 1/2-1/2 — Santiago CHI
1966 — Bermejo Edgardo vs Carames, Luis — 1/2-1/2 — Buenos Aires ARG
1968 — Ghitescu, Theodor vs Malich, Burkhard, Dr. — 1/2-1/2 — Lugano SUI
1990 — Pacey, Kevin vs Gerol, Dmitry — 1-0 — Ottawa CAN
1991 — Winter, Astrid vs Wapnitschnaja, Raissa — 0-1 — GER
6.Qd2 — 1.4% (22 parties)
1959 — Powell, John vs Dorsch, Thomas — 0-1 — ?
1970 — Zeidenweber, J vs Ocampo Vargas, Raul — 0-1 — Mexico City pre ol
1988 — Falkowski, Kacper vs Hayes, Richard Thomas — 0-1 — Lansing ch-MI op
1989 — Aldrich, Jeff vs Miller, Daniel — 1-0 — ?
1991 — Winkler, Gabriele vs Edelmann, S. — 1-0 — Wurtemberg