B74c - 9…a5 - Dragon Classical Alekhine Variation

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B74c — Dragon Classical Alekhine Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2 Nc6 8.O-O O-O 9.Nb3 a5
Eval: [+0.18]
Les coups candidats
10.a4 — 83.8% (363 parties)
Ambassadeurs : Eliskases, Erich (4x), Yanofsky, Daniel Abraham (3x), Korchnoi, Viktor (3x), Donovan, Jeremiah (3x), Aitken, James (3x), Mednis, Edmar J (3x), Kiefer, Gerhard (3x), Santasiere, Anthony (2x)
10.a3 — 7.6% (33 parties)
Ambassadeurs : Gushuliak Justin (2x), Courte, Sylvain (1x), Strehle, Ernst (1x), Vasiukov, Evgeni (1x), Beilin, Mikhail (1x), Romanovsky, Rem Konstantinovich (1x), Gufeld, Eduard (1x), Huicab Puc, Angel Gamaliel (1x)
10.f4 — 4.4% (19 parties)
Ambassadeurs : Bisguier, Arthur B (1x), Daly, Harlow Bussey (1x), Tiszay (1x), Ozsvath, David (1x), Anderson Charles (1x), Pilnick, Carl (1x), Asker, Sven (1x), Jackson, John Alexander (1x)
10.h3 — 1.2% (5 parties)
Ambassadeurs : Myagmarsuren, Lkhamsuren (1x), Soos, Balint (1x), Ralle, Paul (1x), Fournier Le Ray, Pierre (1x), Ramis Roser, Miguel (1x), Fiol Company, Juan (1x), Dionizio, Andre Filipe Nascimento (1x), Silva, Goncalo Nuno Neto Pires (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 10.a4 10.a3 10.f4 10.h3
<1800 6 67% — 33% —
1800-2200 129 81% 5% 5% 3%
2200-2600 142 88% 10% 1% —
2600+ 1 100% — — —
Évolution par décennie (% des parties)
Décennie N parties 10.a4 10.a3 10.f4 10.h3
1930s 11 91% 9% — —
1940s 25 92% — 4% —
1950s 21 67% 14% 14% —
1960s 29 90% 7% — 3%
1970s 27 74% 19% 4% —
1980s 33 100% — — —
1990s 72 83% 7% 7% 1%
2000s 113 87% 4% 4% —
2010s 96 79% 10% 4% 3%
2020s 6 50% 33% — —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
10.a4 79% 50% ▼ -29.2%
10.a3 10% 33% ▲ +22.9%
10.f4 4% 0% ▼ -4.2%
10.h3 3% 0% ▼ -3.1%
Joueurs célèbres
Champions du monde dans cette position
Alekhine, Alexander — 1 partie
Hou, Yifan — 1 partie
Parties historiques
10.a4 — 83.8% (363 parties)
1937 — Balogh Moran, Andres vs Weiss, Adam — 0-1 — IFSB
1937 — Bogoljubow, Efim vs Weichert, P — 1-0 — Bad Saarow
1938 — Spielmann, Rudolf vs Alekhine, Alexander — 1/2-1/2 — Margate ENG
1938 — Gromer, Aristide vs Baulier, A. — 1-0 — Nice FRA
1938 — Castaldi, Vincenzo vs Staehelin, Adolf — 1-0 — Lausanne SUI
10.a3 — 7.6% (33 parties)
1936 — Courte, Sylvain vs Strehle, Ernst — 0-1 — Munich GER
1951 — Seiffert, Ronny Steffen vs Rathai, Volker — 1-0 — Schwerin GER
1955 — Vasiukov, Evgeni vs Beilin, Mikhail — 1/2-1/2 — Moscow RUS
1956 — Romanovsky, Rem Konstantinovich vs Gufeld, Eduard — 1-0 — Kiev UKR
1969 — Huicab Puc, Angel Gamaliel vs Damjanovic, Adam — 1-0 — Ljubljana
10.f4 — 4.4% (19 parties)
1948 — Bisguier, Arthur B vs Daly, Harlow Bussey — 1-0 — Baltimore, MD USA
1951 — Asker, Sven vs Jackson, John Alexander — 1/2-1/2 — Birmingham/Coventry
1952 — Tiszay vs Ozsvath, David — 0-1 — Szeged HUN
1955 — Anderson Charles vs Pilnick, Carl — 0-1 — Long Beach, CA USA
1973 — Wood, Alex vs Berry, Jonathan — 0-1 — Vancouver BC CAN
10.h3 — 1.2% (5 parties)
1962 — Myagmarsuren, Lkhamsuren vs Soos, Balint — 0-1 — Varna BUL
1993 — Ralle, Paul vs Fournier Le Ray, Pierre — 1-0 — Paris op Paris FRA
2012 — Ramis Roser, Miguel vs Fiol Company, Juan — 0-1 — Palma de Majorca ESP
2014 — Dionizio, Andre Filipe Nascimento vs Silva, Goncalo Nuno Neto Pires — 0-1 — Luso
2018 — Kapusta, Petr vs Weissmann, Lukas — 1/2-1/2 — Czech Republic CZE