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E18a —
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3
Les coups candidats
Ambassadeurs : Andersson, Ulf (65x), Ribli, Zoltan (63x), Ivkov, Borislav (55x), Karpov, Anatoly (46x), Ilyasov, Anatoly Fedorovich (46x), Kholmov, Ratmir D (40x), Portisch, Lajos (40x), Najdorf, Miguel (32x)
Ambassadeurs : Markmann, Ulrich (9x), Schneider, Lars-Ake (9x), Nun, Jiri (9x), Augoustis Funti, Alexis (7x), Yudasin, Leonid (7x), Guimard, Carlos E (6x), Tukmakov, Vladimir B (6x), Kochyev, Alexander (6x)
Ambassadeurs : Limberg, Siegfried (5x), Nikolic, Stanimir (3x), Artemchuk, Taras (3x), Laurusas, Tomas (3x), Pelizzola, Danilo (3x), Ramos Correa, Gabriel (3x), Tamas, Gyorgy (3x), Andersen Zargham, Ellene (2x)
Ambassadeurs : Chernyshov, Konstantin (53x), Tiviakov, Sergei (35x), Eggleston, David J (12x), Gavrilov, Alexei (10x), Nguyen, Chi-Minh (10x), Ovsejevitsch, Sergei (10x), Santos Ruiz, Miguel (9x), Kostin, Alexey (7x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…Ne4 7…d5 7…d6 7…Na6
<1800 430 44% 28% 16% 2%
1800-2200 6140 62% 22% 11% 3%
2200-2600 8421 81% 9% 2% 6%
2600+ 510 95% 1% 3%
Évolution par décennie (% des parties)
Décennie N parties 7…Ne4 7…d5 7…d6 7…Na6
1870s 1 100%
1920s 61 41% 28% 28%
1930s 111 62% 22% 14%
1940s 214 91% 6% 3%
1950s 337 85% 10% 4%
1960s 433 85% 11% 1%
1970s 941 84% 13% 2% 0%
1980s 1278 84% 12% 2% 1%
1990s 2813 71% 16% 6% 4%
2000s 4578 66% 17% 8% 7%
2010s 6924 71% 15% 7% 4%
2020s 1452 78% 13% 5% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…Ne4 71% 78% ▲ +6.6%
7…d5 15% 13% ▼ -2.0%
7…d6 7% 5% ▼ -2.4%
7…Na6 4% 3% ▼ -1.0%
Joueurs célèbres
Champions du monde dans cette position
Euwe, Max — 10 parties
Botvinnik, Mikhail — 10 parties
Smyslov, Vladimir — 10 parties
Tal, Mikhail — 10 parties
Karpov, Anatoly — 10 parties
Karpov, Aleksandr — 10 parties
Alekhine, Alexander — 9 parties
Anand, Viswanathan — 8 parties
Carlsen, Magnus — 6 parties
Kasparov, Garry — 5 parties
Ju, Wenjun — 4 parties
Ding, Liren — 4 parties
Kramnik, Vladimir — 3 parties
Hou, Yifan — 3 parties
Parties historiques
7…Ne4 — 72.5% (13882 parties)
1925 — Tartakower, Savielly vs Alekhine, Alexander — 1/2-1/2 — Baden-Baden GER
1925 — Zubarev, Nikolay vs De La Torre Huertas, Carlos — 0-1 — Moscow International Tournament, Moscow
1925 — Asztalos, Lajos vs Tartakower, Savielly — 1/2-1/2 — Debrecen HUN
1925 — Kmoch, Hans vs Tartakower, Savielly — 1/2-1/2 — Debrecen HUN
1925 — Reti, Richard vs Saemisch, Friedrich — 0-1 — Breslau GER
7…d5 — 15.0% (2874 parties)
1871 — Heinicke, Herbert vs Seitz, Alexander — 1-0 — GER
1923 — Smisch, F vs Nimzowitsch, Aron — 0-1 — Copenhagen DEN
1923 — Saemisch, Friedrich vs Nimzowitsch, Aron — 0-1 — Copenhagen DEN
1923 — Nimzowitsch, Aron vs Saemisch, Friedrich — 1-0 — Copenhagen DEN
1923 — von Brochowski, Christoph vs Helling, Bernd — 1-0 — Frankfurt GER
7…d6 — 6.2% (1178 parties)
1921 — Sterk, Karoly vs Vajda, Arpad — 1-0 — Budapest HUN
1921 — Sterk, Karoly vs Vajda, Albert — 1-0 — Budapest HUN
1921 — Gruenfeld, Ernst vs Steiner, Endre — 1-0 — Budapest HUN
1922 — Schlage, Willi vs Davidson, Jacques — 1-0 — Berlin GER
1926 — Van den Bosch, Johannes vs Kroone, Gerard — 0-1 — NED
7…Na6 — 3.9% (740 parties)
1978 — Browne, Walter Shawn vs Spassky, Boris V. — 1/2-1/2 — Tilburg NED
1979 — Vukic, Milan vs Sula, Zeqir — 1/2-1/2 — Bihac BIH
1979 — Oppedal, David vs Shown, E. — 1-0 — Sacramento,CA ch
1979 — Anikaev, Yuri N vs Vitolinsh, Alvis — 1/2-1/2 — Beltsy
1980 — Leal, Omar vs Monroy Cerecero, Enrique — 1-0 — Mexico City MEX