E73d —
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 e5 6.d5
Eval: [+0.55]
Les coups candidats
6…O-O — 32.4% (57 parties)
Ambassadeurs : Metras, Dominique (2x), Mertens, Paul (2x), Dobrotka, Martin (2x), Astengo, Marcello (2x), Furman, Semyon (1x), Krogius, Nikolai V (1x), Soules, George (1x), Cross, Robert Gary (1x)
6…Nbd7 — 27.8% (49 parties)
Ambassadeurs : Bilek, Istvan (2x), Nurman, Alua (2x), Szabo, Laszlo (1x), Negyesy, Gyorgy (1x), Wolf, Rudolf (1x), Macura, Emil (1x), Fazekas, Stephan (1x), Phillips Andrea (1x)
6…a5 — 25.0% (44 parties)
Ambassadeurs : Bronstein, David I (3x), Taimanov, Mark (2x), Astengo, Marcello (2x), Chigaev, Maksim (2x), Van der Hagen, Loek (2x), Bruil, Rembrandt (2x), Taimanov, Alexander (1x), Thibaut, Georges (1x)
6…Na6 — 6.2% (11 parties)
Ambassadeurs : Ilincic, Zlatko (2x), Movsziszian, Karen (1x), Stolz, Mike (1x), Nauryzgaliev, Amangeldy (1x), Hoyer, Olaf (1x), Villegas, Pierre (1x), Riff, Vincent (1x), Shen, Siyuan (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6…O-O 6…Nbd7 6…a5 6…Na6
<1800 4 50% 25%
1800-2200 65 35% 23% 32% 5%
2200-2600 53 25% 30% 30% 13%
2600+ 1 100%
Évolution par décennie (% des parties)
Décennie N parties 6…O-O 6…Nbd7 6…a5 6…Na6
1950s 21 29% 38% 19%
1960s 14 36% 29%
1970s 7 43% 29% 14%
1980s 3 33% 33% 33%
1990s 31 39% 32% 19% 6%
2000s 34 35% 26% 26% 6%
2010s 39 38% 18% 23% 13%
2020s 27 11% 30% 52% 7%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6…O-O 38% 11% ▼ -27.4%
6…Nbd7 18% 30% ▲ +11.7%
6…a5 23% 52% ▲ +28.8%
6…Na6 13% 7% ▼ -5.4%
Parties historiques
6…O-O — 32.4% (57 parties)
1955 — Taimanov, Mark vs Sherbakov, Vitaly — 1/2-1/2 — Moskou ch-URS
1955 — Alster, Ladislav vs Holub, Jan — 1-0 — Prague CZE
1958 — Furman, Semyon vs Krogius, Nikolai V — 1/2-1/2 — Sochi RUS
1958 — Soules, George vs Cross, Robert Gary — 0-1 — Santa Monica, CA USA
1958 — Raue, Thorsten vs Hoesel, R. — 1-0 — cr.
6…Nbd7 — 27.8% (49 parties)
1952 — Szabo, Laszlo vs Negyesy, Gyorgy — 1-0 — Budapest HUN
1954 — Fazekas, Stephan vs Phillips Andrea — 1-0 — Nottingham ch-BCF
1956 — Uhlmann, Wolfgang vs Bilek, Istvan — 1-0 — Dresden GER
1956 — Jezek, Jaroslav vs Sidlo, Oldrich — 1/2-1/2 — Podebrady CZE
1956 — Dittmann, Sieghart vs Bilek, Istvan — 1-0 — Dresden GER
6…a5 — 25.0% (44 parties)
1956 — Taimanov, Mark vs Bronstein, David I — 1-0 — Moscow RUS
1956 — Taimanov, Mark vs Bronstein, David I — 1-0 — Moscow RUS
1956 — Taimanov, Alexander vs Bronstein, David I — 1-0 — Moskou
1959 — Thibaut, Georges vs Vandezande, Albert — 1-0 — Blankenberge
1974 — Skovgaard, Ib vs Jorgensen, Jorgen — 1-0 — ?
6…Na6 — 6.2% (11 parties)
1993 — Movsziszian, Karen vs Stolz, Mike — 1/2-1/2 — Bad Wildbad GER
1997 — Nauryzgaliev, Amangeldy vs Hoyer, Olaf — 0-1 — Moscow RUS
2008 — Villegas, Pierre vs Riff, Vincent — 0-1 — Pau FRA
2009 — Shen, Siyuan vs Ilincic, Zlatko — 1/2-1/2 — Budapest HUN
2010 — Schwierskott, Marc, Dr. vs Scherer, Ralf — 0-1 — Baden