B74a - 9.Nb3 - Dragon Classical [-0.19]

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B74a — Dragon Classical
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
Eval: [-0.19]
Les coups candidats
Ambassadeurs : Thipsay, Praveen M (21x), Koskela, Niina (17x), Gurevich, Vladimir (14x), Roselli Mailhe, Bernardo (12x), Konguvel, Ponnuswamy (12x), Ruefenacht, Matthias (11x), Aitken, James (10x), Vink, Nico (9x)
Ambassadeurs : Varshini, V (5x), Carlsen, Magnus (3x), Radisavljevic, Dalibor (3x), Dau Khuong Duy (3x), Spielmann, Rudolf (2x), Poulsen, Christian (2x), Boleslavsky, Isaac (2x), Benko, Francisco (2x)
9…Bd7 — 9.4% (500 parties)
Ambassadeurs : Alekhine, Alexander (5x), Saemisch, Friedrich (2x), Marchand, Max (2x), Bech Johansson, Amadeus (2x), Balashov, Yuri (2x), Paulis, Winifred (2x), Chung, Juen Sen (2x), Suarez Calvo, Alesandra (2x)
Ambassadeurs : Eliskases, Erich (4x), Yanofsky, Daniel Abraham (3x), Korchnoi, Viktor (3x), Donovan, Jeremiah (3x), Aitken, James (3x), Mednis, Edmar J (3x), Kiefer, Gerhard (3x), Gufeld, Eduard (3x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…Be6 9…a6 9…Bd7 9…a5
<1800 167 48% 19% 17% 4%
1800-2200 1807 56% 15% 13% 7%
2200-2600 1760 69% 12% 4% 8%
2600+ 25 80% 12% — 4%
Évolution par décennie (% des parties)
Décennie N parties 9…Be6 9…a6 9…Bd7 9…a5
1900s 5 20% 40% 20% —
1910s 3 — — 33% —
1920s 16 31% 12% 56% —
1930s 99 63% 11% 4% 11%
1940s 136 77% 5% — 18%
1950s 121 69% 7% 2% 17%
1960s 132 60% 5% 6% 22%
1970s 170 68% 5% 5% 16%
1980s 394 77% 5% 4% 8%
1990s 1165 68% 11% 8% 6%
2000s 1556 60% 13% 12% 7%
2010s 1312 53% 18% 12% 7%
2020s 188 48% 28% 10% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…Be6 53% 48% ▼ -4.4%
9…a6 18% 28% ▲ +9.4%
9…Bd7 12% 10% ▼ -1.9%
9…a5 7% 3% ▼ -4.1%
Joueurs célèbres
Champions du monde dans cette position
Alekhine, Alexander — 7 parties
Euwe, Max — 3 parties
Smyslov, Vladimir — 3 parties
Carlsen, Magnus — 3 parties
Kasparov, Garry — 2 parties
Kramnik, Vladimir — 2 parties
Botvinnik, Mikhail — 1 partie
Tal, Mikhail — 1 partie
Lasker, Emanuel — 1 partie
Capablanca, Jose Raul — 1 partie
Anand, Viswanathan — 1 partie
Hou, Yifan — 1 partie
Parties historiques
9…Be6 — 61.5% (3256 parties)
1903 — Marco, Georg vs Marchand, Max — 0-1 — Monte Carlo MNC
1922 — Ahues, Carl vs Marchand, Max — 1-0 — Berlin GER
1924 — Reti, Richard vs Tartakower, Savielly — 1-0 — New York, NY USA
1928 — Steiner, Lajos vs Richter, Kurt P — 0-1 — Berlin GER
1928 — Yates, Fred Dewhirst vs Buerger, Victor — 0-1 — Tenby
9…a6 — 12.8% (680 parties)
1909 — Spielmann, Rudolf vs Bernstein, Ossip — 0-1 — St Petersburg RUS
1909 — Spielmann, Rudolf vs Duz-Khotimirsky, Fedor Ivanovich — 1-0 — St Petersburg RUS
1927 — Hoffmann, Heinz vs Reinhardt, Enrique — 1-0 — Magdeburg GER
1929 — Torres, Cristian vs Menchik, Vera Frantsevna — 1-0 — Barcelona Barcelona ESP
1931 — Thomas, George Alan vs Petrovs, Vladimirs — 1-0 — Prague CZE
9…Bd7 — 9.4% (500 parties)
1905 — Johner, Paul vs Fox, Albert — 1-0 — New York, NY USA
1918 — Mlotkowski, Stasch vs Gruer, EW. — 1/2-1/2 — Los Angeles, CA USA
1920 — Larsson, Anders 1955 vs Marchand, Max — 0-1 — Goteborg SWE
1920 — Larsson, Anders vs Marchand, Max — 0-1 — Goteborg SWE
1921 — Schlage, William vs Saemisch, Friedrich — 1-0 — Hamburg GER
9…a5 — 8.2% (432 parties)
1936 — Courte, Sylvain vs Strehle, Ernst — 0-1 — Munich GER
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