B35o - 7…O-O 8.Bb3 d6 9.h3 - Accelerated Fianchetto, Modern (1959)

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B35o — Accelerated Fianchetto, Modern (1959)
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4 O-O 8.Bb3 d6 9.h3
Les coups candidats
Ambassadeurs : Kholmov, Ratmir D (9x), Sigurjonsson, Gudmundur (5x), Vujovic, Milorad M (5x), Neukirch, Detlef (5x), Jansa, Vlastimil (4x), De Firmian, Nick (4x), Nikac, Predrag (4x), Ciric, Dragoljub M (3x)
9…Na5 — 23.6% (468 parties)
Ambassadeurs : Mamedov, Rauf (5x), Adorjan, Andras (4x), Klovans, Janis (4x), Konguvel, Ponnuswamy (4x), Diaz, Joaquin, Dr. (3x), Velimirovic, Dragoljub (3x), Marinkovic, Slavisa (3x), Soltanici, Ruslan (3x)
9…Qa5 — 6.3% (125 parties)
Ambassadeurs : Janosevic, Dragoljub (3x), Ciric, Dragoljub M (2x), Szabo, Laszlo (1x), Chesca, Alexandru (1x), Schmitz, Bernd (1x), Parma, Bruno (1x), Van Halderen, Herman (1x), Van Dop, Arend (1x)
9…Nxd4 — 6.0% (118 parties)
Ambassadeurs : Orseth, Dag (3x), Paoli, Enrico (3x), Petursson, Margeir (3x), Skrobek, Ryszard (2x), Kurajica, Bojan (2x), Partos, Charles (2x), Dueball, Juergen (2x), Short, Nigel D (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…Bd7 9…Na5 9…Qa5 9…Nxd4
<1800 88 68% 10% 7% 3%
1800-2200 728 66% 16% 7% 3%
2200-2600 987 52% 30% 5% 8%
2600+ 42 26% 60% — 10%
Évolution par décennie (% des parties)
Décennie N parties 9…Bd7 9…Na5 9…Qa5 9…Nxd4
1950s 3 — — — 33%
1960s 30 53% 7% 17% 10%
1970s 94 46% 17% 11% 16%
1980s 109 61% 11% 6% 14%
1990s 344 60% 18% 8% 7%
2000s 555 61% 22% 6% 5%
2010s 678 57% 28% 4% 4%
2020s 169 47% 37% 9% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…Bd7 57% 47% ▼ -10.5%
9…Na5 28% 37% ▲ +9.1%
9…Qa5 4% 9% ▲ +5.3%
9…Nxd4 4% 2% ▼ -1.8%
Joueurs célèbres
Champions du monde dans cette position
Anand, Viswanathan — 2 parties
Tal, Mikhail — 1 partie
Kramnik, Vladimir — 1 partie
Kasparov, Garry — 1 partie
Carlsen, Magnus — 1 partie
Hou, Yifan — 1 partie
Parties historiques
9…Bd7 — 57.5% (1140 parties)
1960 — Nacht, Edgar vs Gheorghiu, Florin — 1/2-1/2 — Bucharest ROU
1960 — Watts, John Hubert vs Hawson, John B — 1-0 — Leicester
1960 — Watts, John Hubert vs Bennett, Patrick — 1-0 — Leicester
1964 — Moehring, Guenther vs Baumbach, Friedrich, Dr. — 1-0 — Magdeburg GER
1966 — Schoeneberg, Manfred vs Avner, Uri — 0-1 — Oerebro
9…Na5 — 23.6% (468 parties)
1969 — Ribli, Zoltan vs Gesos, Pavlos — 1-0 — Zalaegerszeg
1969 — Vujacic, Borivoje vs Adorjan, Andras — 0-1 — Stockholm SWE
1970 — Ostojic, Predrag vs Ljubojevic, Ljubomir — 0-1 — Vrnjacka Banja SRB
1971 — Derreumaux, Patrick vs Horvath, Tamas — 1-0 — Bagneux FRA
1971 — Kurajica, Bojan vs Musil, Vojko — 1-0 — Pula CRO
9…Qa5 — 6.3% (125 parties)
1960 — Ciric, Dragoljub M vs Parma, Bruno — 1/2-1/2 — Ljubljana
1961 — Ciric, Dragoljub M vs Szabo, Laszlo — 1/2-1/2 — Marianske Lazne zt
1967 — Chesca, Alexandru vs Schmitz, Bernd — 1/2-1/2 — Harrachov
1968 — Van Halderen, Herman vs Van Dop, Arend — 0-1 — The Hague NED
1968 — Paoli, Enrico vs Grassi, Mario — 1/2-1/2 — ITA-ch Milan ITA
9…Nxd4 — 6.0% (118 parties)
1959 — Rootare, Salme vs Todorova, Paunka — 1-0 — Plovdiv BUL
1965 — Husak, Karel vs Endzelins, Lucius — 1-0 — corr Wch5
1968 — Martinovic, Slobodan vs Kupreichik, Viktor D — 0-1 — Ybbs
1968 — Botterill, George S. vs Hadi, Adrian — 1/2-1/2 — Bristol ch-BCF
1970 — Matanovic, Anto vs Dueball, Juergen — 1-0 — Bad Pyrmont GER