A29s — Four Knights (1925)
1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3 Bc5 5.Bg2 d6 6.O-O O-O 7.d3
Les coups candidats
7…h6 — 63.8% (1544 parties)
Ambassadeurs : Beck, Georges (16x), Morley, Paul (13x), Hillebrand, Carsten (9x), Svoboda, Frantisek (8x), Marin M, Laura (7x), Buczinski, Henryk (7x), Vetter, Udo (6x), Wolter, Uwe (6x)
7…a6 — 10.2% (246 parties)
Ambassadeurs : Gulko, Boris (4x), Andersson, Ulf (2x), Wolff, Patrick G (2x), Vujadinovic, Milan (2x), Hernandez, Amaury (2x), Cernik, Rudolf (2x), Ghysens, Dirk (2x), Vidarte Morales, Arturo (2x)
7…Bg4 — 7.1% (172 parties)
Ambassadeurs : Malewicz, Frank (3x), Engelbrecht, Alfred (2x), Lochte, Thomas (2x), Mary, Patrick (2x), Martins Barriga, Floriano de los Angeles (2x), Hess, Volker (2x), Aden, Meino (2x), Figueirido, Mario (1x)
7…Be6 — 6.2% (149 parties)
Ambassadeurs : Korchut, Adam (4x), Filip, Miroslav (1x), Keres, Paul Petrovich (1x), Carlsson, Michael (1x), Adler, Bo (1x), Van den Berg, Jacqueline (1x), Creutzberg, Astrid (1x), Karpov, Anatoly (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…h6 7…a6 7…Bg4 7…Be6
<1800 289 59% 8% 10% 9%
1800-2200 943 67% 10% 7% 4%
2200-2600 604 74% 15% 2% 1%
2600+ 38 74% 24%
Évolution par décennie (% des parties)
Décennie N parties 7…h6 7…a6 7…Bg4 7…Be6
1950s 3 33%
1960s 5 80%
1970s 23 39% 9% 13%
1980s 38 66% 8% 3% 16%
1990s 320 50% 13% 10% 9%
2000s 702 62% 9% 8% 6%
2010s 1206 70% 10% 6% 4%
2020s 123 53% 12% 10% 10%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…h6 70% 53% ▼ -17.6%
7…a6 10% 12% ▲ +2.2%
7…Bg4 6% 10% ▲ +3.6%
7…Be6 4% 10% ▲ +5.4%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 7 parties
Tal, Mikhail — 1 partie
Anand, Viswanathan — 1 partie
Kasparov, Garry — 1 partie
Carlsen, Magnus — 1 partie
Parties historiques
7…h6 — 63.8% (1544 parties)
1963 — Van Oosterom, Arie vs Bergsma, Alois — 0-1 — The Hague ch-NLD
1965 — Abramov, Roman vs Liebert, Heinz — 1-0 — Berlin East
1965 — Behrensen, Jorge vs Rodriguez Alberto , Lisseth Ariad — 0-1 — Buenos Aires ARG
1965 — Behrensen, Jorge vs Bryan Castillo Luna — 1-0 — Buenos Aires ch-ARG
1973 — Ghitescu, Theodor vs Knaak, Rainer — 0-1 — Bucharest Bucharest ROM
7…a6 — 10.2% (246 parties)
1974 — Andersson, Ulf vs Garcia Gonzales, Guillermo — 1/2-1/2 — Las Palmas ESP
1974 — Andersson, Ulf vs Garcia, Gildardo — 1/2-1/2 — Las Palmas ESP
1981 — Raupp, Thomas vs Treppner, Gerd — 1/2-1/2 — Duitsland tt
1982 — Grathwohl, Roland vs Neunhoeffer, Helmut, Dr. — 0-1 — Kirchheim GER ch-Bad
1988 — Pasqualin, Giorgio vs Schmeidler, Martin — 1/2-1/2 — Roncegno
7…Bg4 — 7.1% (172 parties)
1984 — Figueirido, Mario vs Cardenal — 1-0 — cr.
1990 — Brooks, Ian S Dr vs Morton, William — 1-0 — cr.
1993 — Zwick, Georg vs Speier, Ra — 0-1 — PF-ch U13 Bad Duerkheim
1993 — Le Guehennec, Jean-Marc vs Ralle, Pierre — 0-1 — Parijs open
1993 — Von Motschenbacher, Alan vs Fisher Kirshner, Micah — 0-1 — California
7…Be6 — 6.2% (149 parties)
1956 — Filip, Miroslav vs Keres, Paul Petrovich — 1/2-1/2 — Amsterdam NED
1972 — Liebert, Heinz vs Uhlmann, Wolfgang — 0-1 — Leipzig GER
1974 — Adelino, Eusebio vs Albert Benson — 0-1 — ?
1978 — Karpov, Anatoly vs Super-System-III-Cg — 1-0 — West Germany
1980 — Carlsson, Michael vs Adler, Bo — 1-0 — corr SWE/K tt