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B26d — Closed (1949)
1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.Be3 e5
Les coups candidats
Ambassadeurs : Parkanyi, Attila (15x), Havasi, Janos (12x), Welz, Peter, Dr. (10x), Hort, Vlastimil (7x), Feher, Gyula (7x), Cottarelli, Franco (7x), Lamford, Paul (6x), Pihlajasalo, Antti (6x)
7.Nge2 — 11.7% (376 parties)
Ambassadeurs : Groenegress, Wilfried (4x), Kuklin, Valentin (4x), Oney, Adil Feridun (3x), Garcia Martinez, Silvino (2x), Krogius, Nikolai V (2x), Beggi, Pierluigi (2x), Cebalo, Miso (2x), Franke, Johannes (2x)
7.f4 — 6.7% (215 parties)
Ambassadeurs : Vibbert, Sean (4x), Narciso Dublan, Marc (4x), Escher, Thomas (3x), Pachman, Ludek (2x), Bogdanovic, Rajko (2x), Boyd, Stephen (2x), Perez, Flavio (2x), Rouillon, Ludovic (2x)
7.Nh3 — 3.8% (121 parties)
Ambassadeurs : Olcum, Ahmet (5x), Dudek, Richard (4x), Truchot, Baptiste (2x), Wiwe, Andreas (2x), Sindarov, Javokhir (2x), Gundogan, Sinem Cagla (2x), Lane, Gary W (1x), Byway, Paul V (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7.Qd2 7.Nge2 7.f4 7.Nh3
<1800 142 71% 16% 8% 3%
1800-2200 1567 75% 13% 6% 3%
2200-2600 1115 73% 8% 8% 6%
2600+ 9 44% 11% 11% 33%
Évolution par décennie (% des parties)
Décennie N parties 7.Qd2 7.Nge2 7.f4 7.Nh3
1950s 15 87% 7% — —
1960s 59 56% 31% 8% —
1970s 67 60% 19% 13% 4%
1980s 168 79% 11% 1% 5%
1990s 648 75% 11% 7% 2%
2000s 1216 79% 10% 6% 2%
2010s 810 70% 12% 7% 7%
2020s 226 60% 15% 12% 8%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7.Qd2 70% 60% ▼ -9.3%
7.Nge2 12% 15% ▲ +3.1%
7.f4 7% 12% ▲ +4.2%
7.Nh3 7% 8% ▲ +1.2%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 2 parties
Kramnik, Vladimir — 2 parties
Carlsen, Magnus — 2 parties
Smyslov, Vladimir — 1 partie
Gukesh D — 1 partie
Parties historiques
7.Qd2 — 73.8% (2369 parties)
1951 — Burstein, Sylvain vs Nyren, Bo — 1/2-1/2 — Birmingham/Coventry
1954 — Tikhomirova, Vera N vs Vaisberg, Berta I — 1-0 — ?
1955 — Zagorovsky, Vladimir vs Brazilsky, Y. — 1-0 — Odessa UKR
1955 — Smederevac, Petar vs Bogdanovic, Rajko — 1/2-1/2 — Novi Sad SRB
1955 — Christoffel, Martin vs Eros, Plata — 0-1 — Mont Pelerin sur Vevey
7.Nge2 — 11.7% (376 parties)
1959 — Howson, Jim B vs Abdellahi Ahmed Beyatt — 1/2-1/2 — York ch-BCF
1961 — Mohrenstecher, Juergen vs Latka, Dieter — 1/2-1/2 — Rheda
1961 — Garcia Martinez, Silvino vs Krogius, Nikolai V — 0-1 — Moscow RUS
1963 — Robison, H vs Zalys, Ignas — 0-1 — Chess Review
1963 — Groenegress, Wilfried vs Hantke, Rolf — 1/2-1/2 — Buende
7.f4 — 6.7% (215 parties)
1963 — Pachman, Ludek vs Bogdanovic, Rajko — 0-1 — Sarajevo BIH
1963 — Pachman, Ludek vs Bogdanovic, Rajko — 0-1 — Sarajevo BIH
1966 — Abaho Patience vs Horton, Michael Howard — 1/2-1/2 — Sunderland ch-BCF
1968 — Hort, Vlastimil vs Parma, Bruno — 1/2-1/2 — Skopje MKD
1969 — Arjit Shaw vs Tan, Lian Seng — 1-0 — Singapore SIN
7.Nh3 — 3.8% (121 parties)
1973 — Engert, Immo vs Wirthensohn, Heinz — 1-0 — Bad Mondorf
1974 — Babb, Jeff vs Chow, Robert — 0-1 — Vancouver
1979 — Smits, Maurice vs Jonsson, Johannes G — 0-1 — DEN-chJ int Hinnerup
1981 — Christiansen, Larry vs De Firmian, Nick — 1/2-1/2 — US op Palo Alto
1981 — Spassky, Boris V. vs Franke, Reiner, Prof. Dr. — 1-0 — Duitsland tt