E55f - 9…b6 - Main Line, Bronstein (1956)

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E55f — Main Line, Bronstein (1956)
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O dxc4 8.Bxc4 Nbd7 9.Qe2 b6
Les coups candidats
Ambassadeurs : Bakheet Farag (8x), Brilla-Banfalvi, Sandor (6x), Donner, Jan-Hein (5x), Knaak, Rainer (5x), Suba, Mihai (5x), Legemaat, Gert (5x), Aadhitha Karikalan (4x), Korchnoi, Viktor (4x)
10.d5 — 25.5% (240 parties)
Ambassadeurs : Portisch, Lajos (6x), Knaak, Rainer (6x), Gligoric, Sofija (5x), Estrin, Yakov (4x), Parma, Bruno (4x), Kholmov, Ratmir D (4x), Isigkeit, Hans-Jürgen (4x), Ribli, Zoltan (3x)
10.a3 — 9.6% (90 parties)
Ambassadeurs : Clares Huanca, Danner Saed (3x), Beliavsky, Alexander G (3x), Lapienis, Donatas (2x), Kholmov, Ratmir D (2x), Ivanchuk, Vasyl (2x), Chabot, Cedric (2x), Isigkeit, Hans-Jürgen (2x), Ludolph, Jaan (1x)
10.dxc5 — 2.2% (21 parties)
Ambassadeurs : Deskin, Gary (6x), Vitiugov, Nikita (2x), Delgado, Francisco (1x), Melia Ken (1x), Estremera Panos, Sergio (1x), Levin, Felix (1x), Kramnik, Vladimir (1x), Leko, Peter (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 10.Rd1 10.d5 10.a3 10.dxc5
<1800 35 60% 29% 11% —
1800-2200 286 59% 26% 10% 3%
2200-2600 385 64% 22% 10% 2%
2600+ 22 41% 14% 18% 18%
Évolution par décennie (% des parties)
Décennie N parties 10.Rd1 10.d5 10.a3 10.dxc5
1950s 26 58% 31% 4% —
1960s 46 59% 33% 7% —
1970s 39 44% 46% 5% —
1980s 81 40% 40% 16% —
1990s 94 56% 29% 10% —
2000s 330 66% 23% 8% 2%
2010s 305 64% 20% 10% 4%
2020s 20 65% 15% 15% 5%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
10.Rd1 64% 65% ▲ +0.7%
10.d5 20% 15% ▼ -5.0%
10.a3 10% 15% ▲ +4.8%
10.dxc5 4% 5% ▲ +0.7%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 2 parties
Carlsen, Magnus — 2 parties
Karpov, Anatoly — 1 partie
Kramnik, Vladimir — 1 partie
Parties historiques
10.Rd1 — 60.6% (570 parties)
1956 — Miguel, Nahuel vs Padevsky, Nikola — 1/2-1/2 — Moscow olm fin-A
1956 — Ivkov, Borislav vs Benko, Pal — 0-1 — Moskou olm
1957 — Panno, Oscar vs Martinez, A. — 1-0 — Buenos Aires ARG
1957 — Gligoric, Sofija vs Unzicker, Ferdinand, Dr. — 1/2-1/2 — Wenen etc
1957 — Geller, Efim P. vs Furman, Semyon — 1/2-1/2 — Kiev UKR
10.d5 — 25.5% (240 parties)
1956 — Gligorić, Svetozar vs Unzicker, Ferdinand, Dr. — 1-0 — Moscow RUS
1957 — Kozma, Julius vs Bertholdt, Dieter — 1/2-1/2 — Reykjavik ISL
1958 — Sterud, Edvard vs Estrin, Boris — 1-0 — cr.
1958 — Alexander Tadala vs Portisch, Lajos — 0-1 — Balantonfured
1958 — Sokolov, Vladimir vs Ivkov, Borislav — 1/2-1/2 — Sarajevo Sarajevo BIH
10.a3 — 9.6% (90 parties)
1956 — Wade, Robert G vs Balanel, Ion — 1/2-1/2 — Marianske Lazne
1961 — Lapienis, Donatas vs Kholmov, Ratmir D — 0-1 — URS-ch29 sf Novgorod
1961 — Lapienis, Donatas vs Ludolph, Jaan — 1-0 — Palanga
1961 — Nagy, Bela vs Parma, Bruno — 0-1 — The Hague NED
1977 — Podgaets, Mikhail vs Kholmov, Ratmir D — 1/2-1/2 — Beltsy
10.dxc5 — 2.2% (21 parties)
2001 — Delgado, Francisco vs Melia Ken — 0-1 — ?
2009 — Estremera Panos, Sergio vs Levin, Felix — 1/2-1/2 — Amantea ITA
2009 — Kramnik, Vladimir vs Leko, Peter — 1/2-1/2 — Dortmund GER
2009 — Vitiugov, Nikita vs Karjakin, Sergey — 1/2-1/2 — Ohrid MKD
2009 — Vitiugov, Nikita vs Wang, Yue — 1/2-1/2 — Sochi RUS