D63h - 7…a6 8.a3 - Orthodox, Swiss (1927)

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D63h — Orthodox Swiss
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 a6 8.a3
Les coups candidats
8…dxc4 — 52.9% (81 parties)
Ambassadeurs : Mikenas, Vladas (2x), Araiza Munoz, Jose Joaquin (2x), Rosselli del Turco, Stefano (2x), Zgurev, Georgi (2x), Ivkov, Borislav (2x), Fairhurst, William (1x), Riumin, Nikolai (1x), Rauzer, Vsevolod (1x)
8…h6 — 18.3% (28 parties)
Ambassadeurs : Capablanca, Jose (5x), Alekhine, Alexander (5x), De La Torre Huertas, Carlos (2x), Tartakower, Savielly (2x), Havasi, Kornel (1x), Erdelyi, Stefan (1x), Gruenfeld, Ernst (1x), Janowski, Dawid (1x)
8…Re8 — 9.8% (15 parties)
Ambassadeurs : Kan, Ilya A (1x), Rabinovich, Ilya Mar (1x), Marshall, Frank (1x), ? (1x), Landau, Salo (1x), Watt, James Arthur (1x), Veresov, Gavriil (1x), Bronstein, David I (1x)
8…b6 — 7.8% (12 parties)
Ambassadeurs : Capablanca, Jose (3x), Alekhine, Alexander (3x), Koltanowski, George (1x), Wright, George A (1x), Tartakower, Savielly (1x), Puc, Stojan (1x), Vokac, Marek (1x), Jirovsky, Pavel (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8…dxc4 8…h6 8…Re8 8…b6
<1800 2 100% — — —
1800-2200 41 54% 15% 5% 7%
2200-2600 46 61% 13% 13% 9%
2600+ 2 50% — — —
Évolution par décennie (% des parties)
Décennie N parties 8…dxc4 8…h6 8…Re8 8…b6
1910s 1 — — 100% —
1920s 15 20% 47% 7% 27%
1930s 13 54% 23% 23% —
1940s 5 60% — 20% —
1950s 3 33% — — 33%
1960s 6 50% 50% — —
1970s 4 75% — — —
1980s 13 62% 23% 15% —
1990s 25 56% 8% 20% 4%
2000s 34 59% 9% 3% 9%
2010s 29 62% 17% — 7%
2020s 5 20% 40% 20% 20%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8…dxc4 62% 20% ▼ -42.1%
8…h6 17% 40% ▲ +22.8%
8…Re8 0% 20% ▲ +20.0%
8…b6 7% 20% ▲ +13.1%
Joueurs célèbres
Champions du monde dans cette position
Alekhine, Alexander — 8 parties
Tal, Mikhail — 1 partie
Parties historiques
8…dxc4 — 52.9% (81 parties)
1927 — Koltanowski, George vs Johner, Hans — 0-1 — London ENG
1928 — Araiza Munoz, Jose Joaquin vs Rosselli del Turco, Stefano — 0-1 — ?
1928 — Araiza Munoz, Jose Joaquin vs Rosselli del Turco, Stefano — 0-1 — The Hague NED
1933 — Mikenas, Vladas vs Fairhurst, William — 0-1 — Folkestone olm
1934 — Riumin, Nikolai vs Rauzer, Vsevolod — 1/2-1/2 — Leningrad ch-URS
8…h6 — 18.3% (28 parties)
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
1927 — Capablanca, Jose vs Alekhine, Alexander — 1/2-1/2 — Buenos Aires ARG
8…Re8 — 9.8% (15 parties)
1911 — Marshall, Frank vs ? — 1-0 — NED
1929 — Landau, Salo vs Watt, James Arthur — 1-0 — Hastings ENG
1931 — Cala, Ugo vs Rosselli del Turco, Stefano — 1-0 — Milan ITA
1934 — Kan, Ilya A vs Rabinovich, Ilya Mar — 1/2-1/2 — Leningrad RUS
1937 — Multhaupt, Heinz vs Kranki, Hans — 1/2-1/2 — Hamburg GER
8…b6 — 7.8% (12 parties)
1927 — Capablanca, Jose vs Alekhine, Alexander — 1/2-1/2 — Buenos Aires ARG
1927 — Capablanca, Jose vs Alekhine, Alexander — 1/2-1/2 — WM Buenos Aires
1927 — Alekhine, Alexander vs Capablanca, Jose — 1/2-1/2 — Buanos Airos w
1928 — Koltanowski, George vs Wright, George A — 1-0 — Tenby Major op
1950 — Tartakower, Savielly vs Puc, Stojan — 1/2-1/2 — Bled SLO