C82n - 12.Nb3 - Open, Baguio (1927)

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C82n — Open, Baguio (1927)
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.c3 Bc5 10.Nbd2 O-O 11.Bc2 Bf5 12.Nb3
Les coups candidats
12…Bg6 — 64.1% (415 parties)
Ambassadeurs : Timman, Jan H (12x), Korchnoi, Viktor (9x), Jussupow, Artur (8x), Heiermann, Ludger (7x), Ernst, Thomas (6x), Ljubojevic, Ljubomir (5x), Short, Nigel D (4x), Korneev, Oleg (4x)
12…Bg4 — 19.8% (128 parties)
Ambassadeurs : Karpov, Anatoly (6x), Beliavsky, Alexander G (4x), Timoscenko, Gennadij (4x), Kaminskij, Sergej (4x), Semeniuk, Alexander A (3x), Ellinger, Peter (3x), Balogh, Janos (2x), Boutteville, Cesar (2x)
12…Bb6 — 9.7% (63 parties)
Ambassadeurs : Tringov, Georgi P (1x), Bobotsov, Milko G (1x), Tukmakov, Vladimir B (1x), Savon, Vladimir (1x), Roca Cruz, Rafael (1x), Ibora, Rivera (1x), Truong, H. Paul (1x), Gisler, Maurice (1x)
12…Bxf2+ — 4.6% (30 parties)
Ambassadeurs : Murey, Jacob (6x), Seirawan, Yasser (2x), Oren, Itamar (2x), Piket, Jeroen (2x), Mascarenhas, Alberto Pinheiro (2x), Arnason, Jon L (1x), Arnason, Aevar (1x), Ali, Zak (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 12…Bg6 12…Bg4 12…Bb6 12…Bxf2+
<1800 22 64% 14% 23% —
1800-2200 175 64% 16% 13% 4%
2200-2600 211 68% 13% 11% 7%
2600+ 33 79% 18% — 3%
Évolution par décennie (% des parties)
Décennie N parties 12…Bg6 12…Bg4 12…Bb6 12…Bxf2+
1950s 5 — 80% 20% —
1960s 19 11% 84% 5% —
1970s 42 7% 83% 10% —
1980s 159 72% 16% 6% 5%
1990s 174 74% 10% 8% 6%
2000s 97 59% 14% 15% 8%
2010s 121 74% 12% 9% 2%
2020s 30 73% 3% 23% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
12…Bg6 74% 73% -0.2%
12…Bg4 12% 3% ▼ -8.2%
12…Bb6 9% 23% ▲ +14.2%
12…Bxf2+ 2% 0% ▼ -2.5%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 10 parties
Tal, Mikhail — 2 parties
Anand, Viswanathan — 1 partie
Carlsen, Magnus — 1 partie
Parties historiques
12…Bg6 — 64.1% (415 parties)
1960 — Schneider, Klaus vs Illgen, Hans — 1/2-1/2 — Detmold
1964 — Zaitsev, Igor A vs Bebchuk, Evgeni — 1/2-1/2 — Moscow RUS
1971 — Karpov, Anatoly vs Savon, Vladimir — 1-0 — Moscow RUS
1975 — Georgsson, Harvey vs Pioch, Thomas — 0-1 — ?
1979 — Ivanov, Alexander vs Jussupow, Artur — 1/2-1/2 — Frunze KGZ
12…Bg4 — 19.8% (128 parties)
1952 — Szymanski, Aleksander vs Szukszta, Janus — 1-0 — Katowice POL
1952 — Byvshev, Vasily vs Efimov, Kondrat — 1-0 — Leningrad RUS
1959 — Endzelins, Lucius vs Balogh, Janos — 1/2-1/2 — ICCF
1959 — Salm, Maxwell vs Balogh, Janos — 1-0 — 3rd CC World Ch Final 5962
1963 — Unzicker, Ferdinand, Dr. vs Beni, Alfred — 1-0 — Bad Pyrmont GER
12…Bb6 — 9.7% (63 parties)
1955 — Tringov, Georgi P vs Bobotsov, Milko G — 1/2-1/2 — Bulgaria ch
1969 — Tukmakov, Vladimir B vs Savon, Vladimir — 0-1 — Moskou ch-URS
1971 — Chapman, Terry P D vs Aranda, Berenger — 0-1 — London ENG
1973 — Rubinetti, Jorge vs Palermo, Vicente — 1/2-1/2 — Buenos Aires ARG
1973 — Kostro, Jerzy vs Pioch, Zygmunt — 1-0 — POL-ch Gdynia POL
12…Bxf2+ — 4.6% (30 parties)
1980 — Gruenfeld, Yehuda vs Murey, Jacob — 1/2-1/2 — Beer Sheba ISR
1982 — Arnason, Jon L vs Murey, Jacob — 0-1 — Brighton ENG
1982 — Arnason, Aevar vs Murey, Jacob — 0-1 — Brighton ENG
1984 — Morovic Fernandez, Ivan vs Murey, Jacob — 1-0 — Thessaloniki GRE
1989 — Seirawan, Yasser vs Ali, Zak — 0-1 — Lugano op