B58b — Boleslavsky (1901)
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 Bd7
Les coups candidats
7.Be3 — 46.8% (219 parties)
Ambassadeurs : Zhalmakhanov, Ramazan (3x), Laitinen, Leena (2x), Gabor, Hartmut (2x), Abergel, Thal (2x), Carlsen, Magnus (2x), Aronyak Ghosh (2x), Calatayud, Manuel (1x), Soules, Jorge (1x)
7.O-O — 38.9% (182 parties)
Ambassadeurs : Kupreichik, Viktor D (3x), Jakirlic, Nermin (2x), Zhalmakhanov, Ramazan (2x), Reissman, Paul (1x), Laco, Giuseppe (1x), Sanguinetti, Edoardo (1x), Pelikán, Jiří (1x), Rittner, Horst (1x)
Ambassadeurs : Puiggros, Guillermo (1x), Gavilan, Arturo (1x), Kuehnmund, Ivan (1x), Kabat, Emil (1x), Gange, U. (1x), Monch, J. (1x), Petrienko, Vladimir (1x), Wunderlich, Hans-Dieter Dr (1x)
7.Nb3 — 5.1% (24 parties)
Ambassadeurs : Schmaltz, Roland (2x), Rocha, Antonio (1x), Janetschek, Karl (1x), Hogenacker, Jacques (1x), Buechle, Manfred (1x), Bedard, Richard (1x), Zalys, Ignas (1x), Sefeloge, Michael (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7.Be3 7.O-O 7.Bg5 7.Nb3
<1800 52 44% 40% 6% 4%
1800-2200 203 49% 37% 7% 4%
2200-2600 118 42% 42% 5% 8%
2600+ 4 75% 25% — —
Évolution par décennie (% des parties)
Décennie N parties 7.Be3 7.O-O 7.Bg5 7.Nb3
1950s 4 25% 50% 25% —
1960s 6 33% 17% 17% 17%
1970s 14 21% 57% 7% 7%
1980s 11 45% 36% 9% 9%
1990s 95 47% 40% 5% 6%
2000s 136 44% 37% 9% 7%
2010s 163 50% 40% 4% 2%
2020s 39 56% 33% 5% 5%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7.Be3 50% 56% ▲ +6.7%
7.O-O 40% 33% ▼ -7.2%
7.Bg5 4% 5% ▲ +0.8%
7.Nb3 2% 5% ▲ +2.7%
Joueurs célèbres
Champions du monde dans cette position
Carlsen, Magnus — 2 parties
Parties historiques
7.Be3 — 46.8% (219 parties)
1952 — Calatayud, Manuel vs Soules, Jorge — 0-1 — Rosario ARG
1967 — Fontaine, Alain vs Zalys, Ignas — 0-1 — Montreal CAN
1968 — Janetschek, Karl vs Ortega, Rogelio — 0-1 — Lugano olm
1972 — Estevez De La Pena, Guillermo Santiago vs Suradiradja, Herman — 0-1 — Skopje ol (Men) fin-B
1975 — Choobak, Khosrow vs Motamedi, Mano — 1-0 — Teheran (Iran)
7.O-O — 38.9% (182 parties)
1953 — Rittner, Horst vs Quecke, Kurt — 1/2-1/2 — Jena GER
1958 — Reissman, Paul vs Laco, Giuseppe — 1-0 — Munich GER
1969 — Sanguinetti, Edoardo vs Pelikán, Jiří — 1-0 — Buenos Aires ch-ARG
1971 — Kuzmin, Gennadi vs Frota Junior, Gerardo Pinto da — 1-0 — Mayaguez
1971 — Borg, Leonardo vs Rosa Valenzuela, Fernando — 1-0 — Santiago de Chile
7.Bg5 — 6.4% (30 parties)
1951 — Puiggros, Guillermo vs Gavilan, Arturo — 1-0 — Buenos Aires ARG
1966 — Kuehnmund, Ivan vs Kabat, Emil — 1-0 — Prague CZE
1973 — Gange, U. vs Monch, J. — 1-0 — corr DDR/H
1980 — Petrienko, Vladimir vs Wunderlich, Hans-Dieter Dr — 1-0 — Sudwestfalen
1992 — Hebden, Mark L vs Durpaire, Andre — 1-0 — Le Touquet
7.Nb3 — 5.1% (24 parties)
1968 — Rocha, Antonio vs Janetschek, Karl — 1/2-1/2 — Lugano olm
1973 — Bedard, Richard vs Zalys, Ignas — 0-1 — Montreal CAN
1987 — Hogenacker, Jacques vs Buechle, Manfred — 1/2-1/2 — Dortmund open
1991 — Fekete, Janos vs Gal, Karoly — 1/2-1/2 — Hungary league
1994 — Sefeloge, Michael vs Nagel, Raimo Dietrich — 1-0 — Kettig op-RL