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B56e — Open (1957)
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nbd7 6.Bc4
Les coups candidats
6…Nb6 — 30.2% (49 parties)
Ambassadeurs : Groenegress, Wilfried (5x), Ciocaltea, Victor (4x), Lagland, Goran (3x), Seeger, Werner (3x), Essegern, Kurt, Dr. (3x), Ribli, Zoltan (2x), Taimanov, Mark (2x), Hort, Vlastimil (2x)
6…a6 — 26.5% (43 parties)
Ambassadeurs : Bak, Istvan (3x), Westerinen, Heikki M.J. (2x), Richter, Gerhard, Dr. (2x), Tal, Mikhail (1x), Petrosian, Tigran V. (1x), Camara, Helder (1x), Mendes, Silvio Luiz Teixeira (1x), Privorotsky, Oleg (1x)
6…g6 — 19.8% (32 parties)
Ambassadeurs : Perez Perez, Francisco Jose (2x), Bak, Istvan (2x), Matanovic, Anto (1x), Perez Florencio (1x), O'Kelly de Galway, Alberic (1x), Ferloni, Jose W Perez (1x), Mohrlok, Dieter (1x), Chiaramonti, Jacques (1x)
6…e6 — 8.0% (13 parties)
Ambassadeurs : Koppenhoefer, Bernhard, Prof. Dr (4x), OBrien, Erik Michael (1x), Capps, Carroll (1x), Foell, Thomas (1x), Samak, Alexander (1x), Straub, Tobias (1x), Von Buelow, Georg (1x), Horvath, Tamas (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6…Nb6 6…a6 6…g6 6…e6
<1800 12 8% 58% 25% —
1800-2200 42 21% 24% 21% 19%
2200-2600 43 30% 30% 19% 7%
Évolution par décennie (% des parties)
Décennie N parties 6…Nb6 6…a6 6…g6 6…e6
1950s 2 — 50% 50% —
1960s 43 42% 16% 26% 2%
1970s 19 74% 5% 5% —
1980s 12 67% 25% 8% —
1990s 34 12% 38% 3% 24%
2000s 25 8% 36% 28% 12%
2010s 23 9% 30% 39% 4%
2020s 4 25% 50% 25% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6…Nb6 9% 25% ▲ +16.3%
6…a6 30% 50% ▲ +19.6%
6…g6 39% 25% ▼ -14.1%
6…e6 4% 0% ▼ -4.3%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 2 parties
Parties historiques
6…Nb6 — 30.2% (49 parties)
1961 — Korzin, Vitaly A vs Ignatiev, Felix N — 1/2-1/2 — Moscow RUS
1966 — Suetin, Alexey S vs Taimanov, Mark — 1/2-1/2 — Tbilisi ch-URS
1967 — Huguet, Bernard vs Ciocaltea, Victor — 0-1 — Reggio Emilia ITA
1967 — Nacht, Edgar vs Ciocaltea, Victor — 1/2-1/2 — Bucharest ROU
1967 — Cuijpers, Frans Andre vs Ciocaltea, Victor — 1/2-1/2 — Halle zt Halle
6…a6 — 26.5% (43 parties)
1959 — Tal, Mikhail vs Petrosian, Tigran V. — 1/2-1/2 — Bled/Belgrade ct
1960 — Camara, Helder vs Mendes, Silvio Luiz Teixeira — 0-1 — Fortaleza BRA
1967 — Privorotsky, Oleg vs Chistiakov, Alexander — 0-1 — Leningrad RUS
1967 — Basman, Michael J vs Stein, Leonid — 0-1 — Hastings ENG
1967 — Jimenez Alastre Jorge Ernesto vs Szabo, Ladislav — 1/2-1/2 — Leningrad RUS
6…g6 — 19.8% (32 parties)
1957 — Milic, Borislav vs Petrosian, Tigran V. — 1/2-1/2 — Leningrad RUS
1961 — Matanovic, Anto vs Perez Florencio — 1-0 — Zevenaar
1962 — O'Kelly de Galway, Alberic vs Ferloni, Jose W Perez — 1-0 — Torremolinos zt
1962 — Mohrlok, Dieter vs Perez Perez, Francisco Jose — 1-0 — Beverwijk NED
1965 — Perez Perez, Francisco Jose vs Bak, Istvan — 0-1 — Havana CUB
6…e6 — 8.0% (13 parties)
1960 — OBrien, Erik Michael vs Capps, Carroll — 1-0 — San Francisco, CA USA
1993 — Van Riemsdijk, Herman C. vs Szmetan, Jorge — 0-1 — San Martin City ARG
1996 — Foell, Thomas vs Koppenhoefer, Bernhard, Prof. Dr — 1-0 — Tuebingen
1996 — Straub, Tobias vs Koppenhoefer, Bernhard, Prof. Dr — 1-0 — Tuebingen
1996 — Von Buelow, Georg vs Horvath, Tamas — 1/2-1/2 — Vienna op-B Vienna AUT