B45o - 6.Ndb5 - Taimanov, Four Knights (1931)

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B45o — Taimanov, Four Knights (1931)
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Nf6 6.Ndb5
Les coups candidats
Ambassadeurs : Vukic, Milan (98x), Troia, Elio (92x), Horvath, Tamas (55x), Kruk, Sergey Valentinovich (51x), Chorfi, Khaled (49x), Czebe, Attila (43x), Sermek, Drazen (41x), Nunn, John D M (32x)
Ambassadeurs : Van Riemsdijk, Herman C. (43x), Witkowski, Stefan (24x), Khenkin, Igor (24x), Hidegh, Gabor (21x), Stein, Bernd (17x), Rosen, Bernd (16x), Tregubov, Pavel V. (15x), Eisinger, Max Jr (14x)
6…Bc5 — 9.3% (1921 parties)
Ambassadeurs : Pridorozhni, Aleksei (25x), Bellon Lopez, Juan Manuel (23x), Raetsky, Alexander (15x), Heberla, Bartlomiej (14x), Camacho Collados, Jose (14x), Bakic, Rados (13x), Pavlidou, Ekaterini (13x), Kabanov, Nikolai (12x)
6…a6 — 1.2% (250 parties)
Ambassadeurs : Richards, James (3x), Gorbushin, Maksim (2x), Sergo, Eerik Jaan (1x), Plato, Bo (1x), Taylor, Patrick (1x), Friedlander, Ivor Adrian (1x), Briem, Stefan (1x), Jensen, Kristian Kargaard (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6…d6 6…Bb4 6…Bc5 6…a6
<1800 1180 44% 43% 8% 3%
1800-2200 8128 50% 39% 9% 2%
2200-2600 8504 55% 32% 12% 0%
2600+ 280 62% 29% 8% —
Évolution par décennie (% des parties)
Décennie N parties 6…d6 6…Bb4 6…Bc5 6…a6
1950s 144 15% 84% — 1%
1960s 334 16% 81% 1% 1%
1970s 657 63% 35% 1% 1%
1980s 1306 74% 24% 0% 1%
1990s 3540 67% 31% 1% 1%
2000s 6024 54% 39% 4% 2%
2010s 5294 48% 39% 11% 2%
2020s 3306 34% 34% 31% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6…d6 48% 34% ▼ -14.2%
6…Bb4 39% 34% ▼ -5.5%
6…Bc5 11% 31% ▲ +20.7%
6…a6 2% 1% ▼ -0.8%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 10 parties
Kasparov, Garry — 10 parties
Kramnik, Vladimir — 10 parties
Anand, Viswanathan — 10 parties
Tal, Mikhail — 6 parties
Carlsen, Magnus — 5 parties
Hou, Yifan — 4 parties
Smyslov, Vladimir — 1 partie
Botvinnik, Mikhail — 1 partie
Ju, Wenjun — 1 partie
Gukesh D — 1 partie
Parties historiques
6…d6 — 52.1% (10726 parties)
1950 — Averbakh, Yuri L vs Korchnoi, Viktor — 1-0 — Tula RUS
1950 — Sorokin, Nikolay vs Korchnoi, Viktor — 1-0 — Tournament
1952 — Anderson, Frank Ross vs Vaitonis, Povilas — 1-0 — Hamilton CAN
1954 — Nezhmetdinov, Rashid vs Skotorenko, Vasily G — 0-1 — Rostov on Don
1955 — Baev, Pavel vs Lombardy, William J — 1-0 — New York, NY USA
6…Bb4 — 36.9% (7600 parties)
1950 — Aditya Balu Jadhav vs Emden, Hermann — 1/2-1/2 — Lucerne SUI
1950 — Anderson, Frank Ross vs Lidacis, Arnold — 1-0 — Toronto CAN
1950 — Simagin, Vladimir vs Kan, Ilya A — 1/2-1/2 — Moscow-ch Moscow RUS
1951 — Letelier Martner, Rene vs Alonzo Castillo Jimenez — 1-0 — Santiago de Chile
1951 — Foltys, Jan vs Sajtar, Jaroslav — 1-0 — Marianske Lazne zt
6…Bc5 — 9.3% (1921 parties)
1962 — Jelic, Marinko vs Szabalov — 0-1 — USSR
1963 — Suetin, Alexey S vs Osnos, Viatcheslav — 1-0 — Leningrad ch-URS
1964 — Vavruska, Antonin vs Petras, Jan — 0-1 — CSR-ch Army Prague CZE
1964 — Tringov, Georgi P vs Bak, Istvan — 1/2-1/2 — Amsterdam NED
1964 — Seifert, Milan vs Goeth, Jiri — 0-1 — Prague CZE
6…a6 — 1.2% (250 parties)
1958 — Sogaard, Ove vs Nielsen, Otto Hamburg — 1-0 — corr DSU
1964 — Sergo, Eerik Jaan vs Plato, Bo — 1/2-1/2 — Sweden
1965 — Taylor, Patrick vs Friedlander, Ivor Adrian — 1/2-1/2 — ?
1966 — Briem, Stefan vs Jensen, Kristian Kargaard — 1-0 — ?
1971 — Silva Nazzari, Roberto vs Tierra, W. — 1-0 — Uruguay