Fin du contenu

Aucune page supplémentaire à charger

E21a — Three Knights
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3
Eval: [+0.17]
Les coups candidats
Ambassadeurs : Chatalbashev, Boris (38x), Bacrot, Etienne (28x), Kolanek, Roman (26x), Stocek, Jiri (24x), Moiseenko, Alexander (23x), Borisenko, Georgy K (21x), Campos Moreno, Javier B. (19x), Mamedyarov, Shakhriyar (19x)
Ambassadeurs : Stocek, Jiri (39x), Borisenko, Georgy K (38x), Farago, Ivan (33x), Bacrot, Etienne (32x), Pinter, Jozsef (31x), Ubilava, Elizbar (27x), Gaprindashvili, Nona (23x), Korchnoi, Viktor (22x)
Ambassadeurs : Kolanek, Roman (15x), Habes, Jiri (14x), Chatalbashev, Boris (13x), Mamedyarov, Shakhriyar (13x), Ding, Liren (11x), Batsiashvili, Nino (10x), Voege, Tobias (9x), Rozentalis, Eduardas (9x)
Ambassadeurs : Aleksandrov Ivanchev, Aleksandar (12x), Kolanek, Roman (12x), Yu, Yangyi (11x), Dizdar, Goran (10x), Edouard, Romain (9x), Pashikian, Arman (7x), Farago, Ivan (6x), Stocek, Jiri (6x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…b6 4…c5 4…O-O 4…d5
<1800 571 28% 22% 29% 10%
1800-2200 5026 35% 24% 23% 10%
2200-2600 9002 36% 32% 16% 10%
2600+ 1130 37% 32% 13% 14%
Évolution par décennie (% des parties)
Décennie N parties 4…b6 4…c5 4…O-O 4…d5
1880s 1 100%
1910s 1 100%
1920s 42 40% 17% 14% 2%
1930s 94 47% 9% 12% 4%
1940s 84 46% 6% 26% 6%
1950s 234 29% 38% 18% 7%
1960s 395 28% 41% 20% 7%
1970s 271 27% 50% 13% 4%
1980s 1293 32% 45% 11% 6%
1990s 2455 29% 41% 16% 6%
2000s 5176 34% 35% 16% 8%
2010s 7426 39% 23% 20% 12%
2020s 1913 32% 11% 31% 17%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…b6 39% 32% ▼ -7.2%
4…c5 23% 11% ▼ -11.3%
4…O-O 20% 31% ▲ +11.3%
4…d5 12% 17% ▲ +5.4%
Joueurs célèbres
Champions du monde dans cette position
Botvinnik, Mikhail — 10 parties
Tal, Mikhail — 10 parties
Kasparov, Garry — 10 parties
Karpov, Anatoly — 10 parties
Anand, Viswanathan — 10 parties
Carlsen, Magnus — 10 parties
Kramnik, Vladimir — 10 parties
Hou, Yifan — 10 parties
Ju, Wenjun — 10 parties
Ding, Liren — 10 parties
Alekhine, Alexander — 9 parties
Euwe, Max — 8 parties
Smyslov, Vladimir — 8 parties
Karpov, Aleksandr — 8 parties
Gukesh D — 6 parties
Lasker, Emanuel — 3 parties
Parties historiques
4…b6 — 34.7% (6735 parties)
1887 — Englisch, Berthold vs Noa, Joseph — 1-0 — Frankfurt GER
1925 — Bogoljubow, Efim vs Smirnov, Alexander Al — 1-0 — Leningrad RUS
1925 — Marshall Viele, Fabrizio Aaron vs Saemisch, Friedrich — 0-1 — Moscow RUS
1926 — Euwe, Max vs Alekhine, Alexander — 0-1 — Nederland m
1927 — Seitz, Alexander vs Marotti, Davide — 0-1 — Naples ITA
4…c5 — 29.5% (5721 parties)
1919 — Maier, Gennadi vs Lasker, Emanuel — 1/2-1/2 — sim Munich
1920 — Johner, Paul vs Berndtsson, Karl — 1-0 — Goteborg SWE
1920 — Euwe, Max vs Berndtsson, Karl — 1-0 — Goteborg SWE
1921 — Liberman Rubinstein, Joseph vs Maroczi — 1-0 — Lancashire
1922 — Rubinstein, Akiba vs Maroczy, Geza — 1-0 — Londen
4…O-O — 18.8% (3651 parties)
1920 — Reshevsky, Samuel vs Saemisch, Friedrich — 0-1 — Berlin GER
1920 — Rubinstein, Akiba vs Bogoljubow, Efim — 1-0 — Stockholm / Goteburg m
1923 — Harwich, SY. vs Lasker, Emanuel — 1/2-1/2 — Helsingborg SWE
1925 — Rabinovich, Ilya Mar vs Saemisch, Friedrich — 1/2-1/2 — Baden-Baden GER
1929 — Olsson, Kaj vs Stoltz, Gosta — 0-1 — Stockholm SWE
4…d5 — 9.9% (1917 parties)
1922 — Alekhine, Alexander vs Zajicek, Petr — 1-0 — Prague CZE
1936 — Schuchet, I. vs Yanofsky, Daniel Abraham — 0-1 — Toronto CAN
1936 — Spielmann, Rudolf vs Fine, Reuben — 1/2-1/2 — Zandvoort NED
1938 — Botvinnik, Mikhail vs Ragozin, Viacheslav — 1-0 — Moscow RUS
1938 — Eliskases, Erich vs Regedzinski, Theodor — 1-0 — Lodz POL