E20i —
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Bd2 O-O
Eval: [+0.07]
Les coups candidats
Ambassadeurs : Lucena Cifré, Rafael José (16x), Stern, Rafael (13x), Stern, Rene (8x), Hafner, Robert (8x), Schmidt, Roland 1959 (6x), Struzka, Vlastimil (6x), Burri, Quentin (6x), Mastrovasilis, Athanasios (6x)
5.e3 — 27.8% (839 parties)
Ambassadeurs : Struzka, Vlastimil (27x), Bass Stanley (10x), Analiev, Dimitar (6x), Welling, Gerard (5x), Loik, Galina (5x), Travadon, Loic (4x), Ruben, Carl (3x), Tartakower, Savielly (3x)
5.a3 — 14.5% (438 parties)
Ambassadeurs : Schaufelberger, Heinz (14x), Djukic, Zeljko (7x), Macskasy, Elod (5x), Bass Stanley (4x), Mirzoev, Azer (4x), Ligeti, George (3x), Hvenekilde, Jorgen (3x), Petricevic, Mateo (3x)
5.Qc2 — 5.7% (173 parties)
Ambassadeurs : Fryganas, Stavros (2x), Sage, Francois (2x), Achour Daniel (2x), Astengo, Marcello (2x), Koops, Maris (2x), Mayes, Frederick John (2x), Hardwick, Martin E (2x), Dragoumis, Al (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5.Nf3 5.e3 5.a3 5.Qc2
<1800 268 47% 26% 15% 4%
1800-2200 1090 48% 29% 13% 6%
2200-2600 635 50% 30% 14% 3%
2600+ 13 46% 31% 15%
Évolution par décennie (% des parties)
Décennie N parties 5.Nf3 5.e3 5.a3 5.Qc2
1880s 1 100%
1910s 1 100%
1920s 8 38% 38% 25%
1930s 27 22% 48% 7% 15%
1940s 11 45% 36% 18%
1950s 17 29% 47% 6% 18%
1960s 22 36% 32% 18% 14%
1970s 45 60% 13% 11% 11%
1980s 99 39% 23% 17% 12%
1990s 429 43% 23% 20% 7%
2000s 796 45% 27% 17% 5%
2010s 1125 48% 28% 13% 6%
2020s 435 51% 35% 10% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5.Nf3 48% 51% ▲ +2.9%
5.e3 28% 35% ▲ +7.3%
5.a3 13% 10% ▼ -3.3%
5.Qc2 6% 1% ▼ -4.5%
Joueurs célèbres
Champions du monde dans cette position
Alekhine, Alexander — 2 parties
Hou, Yifan — 2 parties
Smyslov, Vladimir — 1 partie
Parties historiques
5.Nf3 — 46.7% (1408 parties)
1883 — Englisch, Berthold vs Blackburne, Joseph — 1/2-1/2 — London ENG
1923 — Brinckmann, Alfred vs Nimzowitsch, Aron — 0-1 — Kolding
1927 — Ahues, Carl vs Nimzowitsch, Aaron — 0-1 — Berlin GER
1929 — Sapira, Emmanuel vs Rejfir, Josef — 0-1 — Hastings ENG
1931 — Duchamp, Marcel vs Noteboom, Daniel — 1/2-1/2 — Nice FRA
5.e3 — 27.8% (839 parties)
1919 — Spielmann, Rudolf vs Bogoljubow, Efim — 1/2-1/2 — Stockholm November
1925 — Tarrasch, Siegbert vs Saemisch, Friedrich — 1/2-1/2 — Breslau GER
1927 — Ruben, Carl vs Nimzowitsch, Aron — 1/2-1/2 — Copenhagen DEN
1927 — Ruben, Carl vs Nimzowitsch, Aron — 1/2-1/2 — Copenhagen - Politik
1930 — Nielsen, Hartvig vs Ruben, Carl — 1-0 — Svendborg
5.a3 — 14.5% (438 parties)
1932 — Negyesy, Gyorgy vs Steiner, Endre — 0-1 — Budapest HUN
1932 — Sterk, Karoly vs Joyeux Steiner, Gael — 1/2-1/2 — Budapest HUN
1957 — Macskasy, Elod vs Anderson, Frank Ross — 0-1 — Vancouver BC CAN
1961 — Nute, Gary vs Barry Bertomeu, Enrique — 0-1 — New England
1961 — Macskasy, Elod vs Grimshaw, David — 0-1 — Brockville
5.Qc2 — 5.7% (173 parties)
1922 — Saemisch, Friedrich vs Przepiorka, Dawid — 1-0 — Bad Pistyan CZE
1928 — Tartakower, Savielly vs Marshall Viele, Fabrizio Aaron — 1-0 — Berlin GER
1931 — Alekhine, Alexander vs Kondic Cacan, Lazar — 0-1 — Beograd simultaan
1932 — Baratz, Abraham vs Fryganas, Stavros — 0-1 — Paris FRA
1936 — Myhre, Erling vs Olsen, Odd Anders — 1/2-1/2 — Glostrup