D63d - 7…a6 - Orthodox, Swiss Variation (1912)

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D63d — Orthodox Swiss Variation
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 a6
Les coups candidats
Ambassadeurs : Ziatdinov, Raset (15x), Csom, Istvan (13x), Portisch, Lajos (9x), Balashov, Yuri (8x), Marshall, Frank (5x), Tartakower, Savielly (5x), Bisguier, Arthur B (5x), Konstantinopolsky, Alexander (4x)
Ambassadeurs : Balashov, Yuri (7x), Ziatdinov, Raset (7x), Vaganian, Rafael A (6x), Radulski, Julian (5x), Alekhine, Alexander (4x), Speelman, Jon S (4x), Csom, Istvan (4x), Goldin, Alexander (4x)
8.Bd3 — 9.9% (192 parties)
Ambassadeurs : Rubinstein, Akiba (2x), Manuri, Louise (2x), Morin, Louis (2x), Gareis, Roberto (2x), Marshall, Frank (1x), Stephen G Ruth (1x), Reichhelm, Gustavus C (1x), Showalter, Jackson (1x)
Ambassadeurs : Capablanca, Jose (8x), Alekhine, Alexander (8x), Rosselli del Turco, Stefano (3x), Mikenas, Vladas (2x), Araiza Munoz, Jose Joaquin (2x), Zgurev, Georgi (2x), De La Torre Huertas, Carlos (2x), Koltanowski, George (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8.cxd5 8.c5 8.Bd3 8.a3
<1800 44 36% 16% 34% 2%
1800-2200 472 47% 15% 18% 7%
2200-2600 843 53% 25% 3% 6%
2600+ 30 40% 33% — 7%
Évolution par décennie (% des parties)
Décennie N parties 8.cxd5 8.c5 8.Bd3 8.a3
1890s 8 75% — 25% —
1900s 16 69% 12% 19% —
1910s 15 27% 27% 20% 7%
1920s 53 40% 21% 2% 28%
1930s 70 59% 14% — 19%
1940s 32 66% — 6% 16%
1950s 32 72% 6% 6% 6%
1960s 32 66% 9% — 19%
1970s 100 58% 21% 6% 4%
1980s 204 57% 23% 5% 6%
1990s 458 51% 16% 10% 5%
2000s 526 43% 25% 13% 6%
2010s 351 52% 15% 13% 7%
2020s 43 58% 14% 7% 12%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8.cxd5 52% 58% ▲ +6.3%
8.c5 15% 14% ▼ -1.1%
8.Bd3 13% 7% ▼ -5.8%
8.a3 7% 12% ▲ +4.8%
Joueurs célèbres
Champions du monde dans cette position
Alekhine, Alexander — 10 parties
Euwe, Max — 5 parties
Lasker, Emanuel — 2 parties
Karpov, Anatoly — 2 parties
Tal, Mikhail — 2 parties
Karpov, Aleksandr — 1 partie
Smyslov, Vladimir — 1 partie
Carlsen, Magnus — 1 partie
Parties historiques
8.cxd5 — 51.0% (990 parties)
1897 — Burn, Amos vs Zinkl, Adolf — 1-0 — Berlin GER
1897 — Pillsbury, Harry vs Showalter, Jackson — 1-0 — New York, NY USA
1897 — Pillsbury, Harry vs Showalter, Jackson — 1-0 — Brooklyn
1898 — Marshall, Frank vs Showalter, Jackson — 1-0 — ch New York State, New York
1898 — Napier, William vs Marshall, Frank — 1-0 — ch city m, Brooklyn
8.c5 — 18.9% (367 parties)
1904 — Rubinstein, Akiba vs Marco, Georg — 1-0 — Monte Carlo MNC
1905 — Janowski, Dawid vs Berger, Jacob — 0-1 — Barmen GER
1910 — Dyckhoff, Eduard vs Wiegand, Achim — 1-0 — Hamburg GER
1912 — Rubinstein, Akiba vs Hromadka, Karel — 1-0 — Bad Pistyan CZE
1913 — Levay, Kalman vs Havasi, Kornel — 1/2-1/2 — Debrecen HUN
8.Bd3 — 9.9% (192 parties)
1895 — Reichhelm, Gustavus C vs Showalter, Jackson — 0-1 — Cable
1897 — Marshall, Frank vs Stephen G Ruth — 0-1 — Brooklyn, New York, NY USA
1904 — Rubinstein, Akiba vs Rubinstein, Akiba — 0-1 — Monte Carlo MNC
1905 — Benima, Fred vs Middleton, E E — 0-1 — Barmen GER
1907 — Edwards, TJ. vs Heastie, Basil — 1-0 — Crystal Palace
8.a3 — 7.3% (142 parties)
1911 — Marshall, Frank vs ? — 1-0 — NED
1925 — Janowski, Dawid vs De La Torre Huertas, Carlos — 1/2-1/2 — Marienbad CZE
1927 — Capablanca, Jose vs Alekhine, Alexander — 1/2-1/2 — Buenos Aires ARG
1927 — Capablanca, Jose vs Alekhine, Alexander — 0-1 — Buenos Aires ARG
1927 — De La Torre Huertas, Carlos vs Gruenfeld, Ernst — 1-0 — Buenos Aires wch-m