D24j - 4…a6 5.a4 Nc6 - QGA (1935)

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D24j — QGA (1935)
1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.Nc3 a6 5.a4 Nc6
Les coups candidats
Ambassadeurs : Schmitz, Manuela (5x), Schmitz, Andreas Arnold (3x), Aloni, Itzchak (2x), Aditya Balu Jadhav (2x), Vladimirov, Boris T (2x), Kozlovskaya, Valentina (2x), Breahna, Radu (2x), Guimaraes, Jorge (2x)
6.e3 — 38.9% (447 parties)
Ambassadeurs : Bernard, Ryszard (4x), Faleg, Alberto (3x), Danielian, Elina (3x), Garcia Palermo, Carlos Horacio (2x), Kebbekus, Thomas (2x), Fontaine, Robert (2x), Baudin, Frederic (2x), Nowicki, Eva (2x)
6.Bg5 — 11.1% (127 parties)
Ambassadeurs : Bernard, Christophe (2x), Volpert, Larisa (1x), Konarkowska-Sokolov, Henrijeta (1x), Matamoros Franco, Carlos S. (1x), Barua, Dibyendu (1x), Niklasson, Christer (1x), Nikolic, Nebojsa (1x), Wallach, Kenneth (1x)
6.a5 — 4.5% (52 parties)
Ambassadeurs : Bonafont, Philip R (2x), Raletich, George (1x), Fuster, Geza (1x), Pomar Salamanca, Arturo (1x), Johannsson, Ingi R (1x), Abad Calderon, Abraham (1x), Clough, Fred (1x), Holmstrand, Lars (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6.e4 6.e3 6.Bg5 6.a5
<1800 60 33% 42% 12% 7%
1800-2200 517 37% 43% 10% 5%
2200-2600 402 46% 33% 14% 4%
2600+ 5 40% — 40% 20%
Évolution par décennie (% des parties)
Décennie N parties 6.e4 6.e3 6.Bg5 6.a5
1950s 8 50% 25% — 25%
1960s 33 42% 39% 3% 9%
1970s 26 46% 46% 4% 4%
1980s 56 45% 38% 12% 4%
1990s 228 42% 40% 12% 3%
2000s 319 42% 40% 9% 4%
2010s 359 38% 38% 14% 6%
2020s 120 42% 38% 11% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6.e4 38% 42% ▲ +4.9%
6.e3 38% 38% -0.1%
6.Bg5 14% 11% ▼ -2.8%
6.a5 6% 2% ▼ -3.3%
Joueurs célèbres
Champions du monde dans cette position
Kramnik, Vladimir — 1 partie
Parties historiques
6.e4 — 40.9% (470 parties)
1951 — Eigler, Ferenc vs Füster, Géza — 0-1 — Hungary ch
1956 — Breustedt, Werner vs Franz, Joachim — 0-1 — Leipzig ch GDR
1958 — Aloni, Itzchak vs Van den Berg, Carel B — 1/2-1/2 — Haifa/Tel Aviv
1958 — Kramer, George vs Bisguier, Arthur B — 0-1 — New York, NY USA
1960 — Tokarev, Aleksandr vs Ousatchi, Mark — 1-0 — ?
6.e3 — 38.9% (447 parties)
1951 — Herrmann, Ludwig vs Sliwa, Bogdan — 1-0 — Sopot
1953 — Jezek, Jaroslav vs Stulik, Vlastimil — 0-1 — Prague CZE
1960 — Faleg, Alberto vs Bisguier, Arthur B — 0-1 — Leipzig GER
1960 — Pojedziniec, Wladyslaw vs Gawliczek, Andreas — 0-1 — Poland ch
1962 — Faleg, Alberto vs Schweber, Samuel — 0-1 — Mar del Plata ARG
6.Bg5 — 11.1% (127 parties)
1961 — Volpert, Larisa vs Konarkowska-Sokolov, Henrijeta — 1/2-1/2 — Vrnjacka Banja SRB
1979 — Weiss, Thomas vs Mayer, Steven F. — 0-1 — World op
1981 — Matamoros Franco, Carlos S. vs Barua, Dibyendu — 1-0 — Embalse
1985 — Wallach, Kenneth vs Acosta, Mariano — 0-1 — Midwest Masters Inv
1986 — Hoellman, Ludger vs Meyer, Peter — 0-1 — ?
6.a5 — 4.5% (52 parties)
1955 — Raletich, George vs Fuster, Geza — 1/2-1/2 — Ottawa CAN
1958 — Pomar Salamanca, Arturo vs Johannsson, Ingi R — 1/2-1/2 — Munich GER
1963 — Abad Calderon, Abraham vs Clough, Fred — 1/2-1/2 — Bath ch-BCF
1963 — Holmstrand, Lars vs Horberg, Bengt-Eric — 1-0 — Stockholm SWE
1967 — Vapnichnaya, Raisa vs Konashenkov, Ilya — 1-0 — URS