D29h - 9.Rd1 Nbd7 10.a4 - QGA: Classical (1937)

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D29h — Classical
1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.Qe2 b5 8.Bb3 Bb7 9.Rd1 Nbd7 10.a4
Les coups candidats
Ambassadeurs : Reshevsky, Samuel (2x), Simacek, Pavel (2x), Wood, Baruch (1x), Hooper, John (1x), Keres, Paul (1x), Keres, Paul Petrovich (1x), Incutto, Carlos (1x), Bartis, Gustavo (1x)
10…Qb6 — 21.0% (61 parties)
Ambassadeurs : Pilnik, Herman (3x), Kakageldyev, Amanmurad (2x), Bialas, Wolfram (2x), Balduan, Markus (2x), Maccioni, Alejandro (1x), Hottes, Dieter (1x), Bachmann, Karlheinz (1x), Gerusel, Mathias (1x)
10…Qb8 — 20.3% (59 parties)
Ambassadeurs : Baburin, Alexander (4x), Vaulin, Alexander P. (2x), Burmakin, Vladimir (2x), Jaracz, Pawel (2x), Evans Lianda (1x), Sherwin, James T (1x), Sunye Neto, Jaime (1x), Kuligowski, Adam (1x)
10…Be7 — 16.6% (48 parties)
Ambassadeurs : Krallmann, Matthias (3x), Olafsson, Fridrik (2x), Thanner, Hans-Peter (2x), Ac, Michal (2x), Gabernet Llorens, Miquel (1x), O'Kelly, Albéric de Galway (1x), Fine, Reuben (1x), Pilnik, Herman (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 10…b4 10…Qb6 10…Qb8 10…Be7
<1800 1 — 100% — —
1800-2200 61 31% 23% 21% 11%
2200-2600 170 30% 19% 24% 14%
2600+ 5 20% — 40% —
Évolution par décennie (% des parties)
Décennie N parties 10…b4 10…Qb6 10…Qb8 10…Be7
1910s 1 — — — —
1930s 4 50% — — 50%
1940s 6 17% 17% — 67%
1950s 14 21% — — 71%
1960s 10 10% 40% 10% 20%
1970s 7 29% 57% — —
1980s 11 18% 27% 18% 18%
1990s 62 21% 29% 19% 21%
2000s 88 31% 20% 26% 7%
2010s 63 32% 14% 30% 11%
2020s 24 42% 17% 8% 8%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
10…b4 32% 42% ▲ +9.9%
10…Qb6 14% 17% ▲ +2.4%
10…Qb8 30% 8% ▼ -21.8%
10…Be7 11% 8% ▼ -2.8%
Joueurs célèbres
Champions du monde dans cette position
Euwe, Max — 1 partie
Alekhine, Alexander — 1 partie
Parties historiques
10…b4 — 27.9% (81 parties)
1937 — Keres, Paul vs Reshevsky, Samuel — 0-1 — Semmering AUT
1937 — Keres, Paul Petrovich vs Reshevsky, Samuel — 0-1 — 13 Semmering Baden
1943 — Wood, Baruch vs Hooper, John — 1-0 — British CC Ch
1952 — Incutto, Carlos vs Bartis, Gustavo — 0-1 — Buenos Aires ARG
1952 — Gruenfeld, Ernst vs O'Kelly, Albéric de Galway — 1/2-1/2 — Belgrade SRB
10…Qb6 — 21.0% (61 parties)
1946 — Maccioni, Alejandro vs Pilnik, Herman — 1-0 — Mar del Plata ARG
1960 — Wexler, Bernardo vs Fuchs, Reinhart — 0-1 — Leipzig GER
1961 — Rejfir, Josef vs Filip, Miroslav — 0-1 — Kosice
1962 — Hottes, Dieter vs Bachmann, Karlheinz — 1/2-1/2 — It Bamberg GER
1963 — Gerusel, Mathias vs Bialas, Wolfram — 1/2-1/2 — Bad Pyrmont GER
10…Qb8 — 20.3% (59 parties)
1962 — Evans Lianda vs Sherwin, James T — 1-0 — New York, NY USA
1986 — Sunye Neto, Jaime vs Kuligowski, Adam — 0-1 — Brussels BEL
1986 — Pirttimaki, Timo vs Kivisto, Mikko — 1/2-1/2 — Jarvenpaa FIN
1992 — Loeffler, Stefan vs Yakovich, Yuliya — 1/2-1/2 — Munchen open
1992 — Schleining, Zoya vs Baburin, Alexander — 0-1 — Helsinki FIN
10…Be7 — 16.6% (48 parties)
1937 — Landau Salomon vs Book, Eero — 1/2-1/2 — Stockholm SWE
1937 — Euwe, Max vs Alekhine, Alexander — 1-0 — Bad Nauheim
1945 — Fine, Reuben vs Pilnik, Herman — 1-0 — Washington, DC USA
1945 — Stark Letellier, Maxime vs Byrne, Ray — 1-0 — Ventnor City
1946 — Gabernet Llorens, Miquel vs O'Kelly, Albéric de Galway — 1-0 — Barcelona ESP