D48c - 9.O-O c5 - Meran [+0.11]

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D48c — Meran
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.O-O c5
Eval: [+0.11]
Les coups candidats
10.a4 — 22.4% (376 parties)
Ambassadeurs : Clancey, James (10x), Sabbatini, Giuseppe (10x), Wojnar, Mariusz (10x), Mayr, Franz (10x), Niewold, Jaap (10x), Brunner, Mag. Robert (10x), Rubinstein, Akiba (4x), Gruenfeld, Ernst (4x)
Ambassadeurs : Bogoljubow, Efim (5x), Euwe, Max (3x), Vidmar Milan (3x), Ahues, Carl (3x), Andersen, Erik (3x), Starck, Bodo (3x), Thomas, George Alan (2x), Pomar Salamanca, Arturo (2x)
10.b3 — 20.2% (339 parties)
Ambassadeurs : Euwe, Max (3x), Larsen, Odd Ingolf (2x), Lamprecht, Mark (2x), Kaeser, Udo, Dr. (2x), Ramirez, Heimy Polgar (2x), Avci, Abdurrahman (2x), Fitzke, Ulrich (2x), Mackenzie, Arthur J (1x)
10.dxc5 — 10.4% (175 parties)
Ambassadeurs : Lauvsnes, Arild (2x), Melnik, Galina (2x), Zirnis, Arvids (1x), Zemgalis, Elmars (1x), Capablanca, Jose (1x), Bernstein, Ossip (1x), Werner, Maik (1x), Najdorf, Miguel (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 10.a4 10.Qe2 10.b3 10.dxc5
<1800 69 13% 14% 32% 17%
1800-2200 746 17% 20% 23% 12%
2200-2600 424 34% 29% 14% 4%
2600+ 11 27% 36% 9% —
Évolution par décennie (% des parties)
Décennie N parties 10.a4 10.Qe2 10.b3 10.dxc5
1900s 1 100% — — —
1910s 2 — 50% — 50%
1920s 29 38% 38% 17% 3%
1930s 40 32% 45% 15% —
1940s 31 35% 16% 23% 10%
1950s 33 45% 30% 15% 3%
1960s 19 16% 53% 11% —
1970s 19 5% 21% 26% 5%
1980s 54 24% 31% 20% 13%
1990s 238 20% 25% 19% 8%
2000s 545 19% 18% 20% 12%
2010s 601 24% 20% 22% 12%
2020s 67 22% 36% 21% 6%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
10.a4 24% 22% ▼ -1.2%
10.Qe2 20% 36% ▲ +16.0%
10.b3 22% 21% ▼ -0.7%
10.dxc5 12% 6% ▼ -5.8%
Joueurs célèbres
Champions du monde dans cette position
Euwe, Max — 7 parties
Alekhine, Alexander — 2 parties
Gukesh D — 1 partie
Parties historiques
10.a4 — 22.4% (376 parties)
1907 — Teichmann, Richard vs Berger, Jacob — 1/2-1/2 — Carlsbad CZE
1924 — Gruenfeld, Ernst vs Rubinstein, Akiba — 0-1 — Merano - Meran ITA
1924 — Gruenfeld, Ernst vs Rubinstein, Akiba — 0-1 — Meran ITA
1924 — Colle, Edgar vs Euwe, Max — 1-0 — Zutphen m
1924 — Lasker, Edward vs Tartakower, Savielly — 1-0 — New York, NY USA
10.Qe2 — 22.4% (376 parties)
1912 — Alapin, Simon vs Freiman, Andy — 0-1 — Vilnius LTU
1923 — Straat, Evert-Jan vs Euwe, Max — 0-1 — Amsterdam NED
1924 — Tarrasch, Siegbert vs Gruenfeld, Ernst — 1/2-1/2 — Meran ITA
1924 — Muller, Hans vs Master Walter Aira — 1-0 — Gyor
1924 — Van Trotsenburg, B vs Euwe, Max — 0-1 — ?
10.b3 — 20.2% (339 parties)
1924 — Mackenzie, Arthur J vs Euwe, Max — 0-1 — Weston
1924 — Banks, Newell vs Whitaker, Norman — 1/2-1/2 — Detroit, MI USA
1925 — Cs. Nagy, Gabor vs Gruenfeld, Ernst — 0-1 — Debrecen HUN
1926 — Duchamp, Marcel vs Reilly, Brian — 0-1 — Nice FRA
1927 — Nagy, Geza vs Kroone, Gerard — 0-1 — London ENG
10.dxc5 — 10.4% (175 parties)
1914 — Capablanca, Jose vs Bernstein, Ossip — 1/2-1/2 — Moscow RUS
1924 — Kroone, Gerard vs Straat, Evert — 1/2-1/2 — Amsterdam NED
1940 — Donovan, Jeremiah vs Santasiere, Anthony — 0-1 — Ventnor City
1947 — Werner, Maik vs Najdorf, Miguel — 0-1 — San Pablo
1949 — Zirnis, Arvids vs Zemgalis, Elmars — 0-1 — Esslington