E55d - 9.Qe2 - Main Line, Bronstein (1948)

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E55d — Main Line, Bronstein (1948)
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
Les coups candidats
Ambassadeurs : Bakheet Farag (14x), Knaak, Rainer (12x), Kholmov, Ratmir D (10x), Isigkeit, Hans-Jürgen (9x), Estrin, Yakov (8x), Parma, Bruno (7x), Suba, Mihai (7x), Legemaat, Gert (7x)
Ambassadeurs : Donner, Jan-Hein (8x), Unzicker, Ferdinand, Dr. (6x), Portisch, Ferenc (5x), Abanin, Vladimir (4x), Knaak, Rainer (4x), Zurakhov, Vladlen Y (3x), Boleslavsky, Isaac (3x), Miguel, Nahuel (3x)
9…cxd4 — 15.6% (234 parties)
Ambassadeurs : Kholmov, Ratmir D (4x), Kozma, Julius (3x), Panno, Oscar (3x), Portisch, Lajos (3x), Hnatovsky, Nicholas (3x), Albert, Horacio (2x), Bakheet Farag (2x), Nordstrom, Felix (2x)
9…Qe7 — 1.2% (18 parties)
Ambassadeurs : Spassky, Boris Vasily (1x), Rapaka Samuel Paul (1x), Weinstein, Raymond (1x), Byrne, Robert E (1x), Zsinka, Laszlo (1x), Mencinger, Vojko (1x), Giorgadze, Giorgi Gel (1x), Timoscenko, Gennadij (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…b6 9…a6 9…cxd4 9…Qe7
<1800 58 60% 16% 19% 2%
1800-2200 415 69% 13% 17% 1%
2200-2600 639 60% 21% 18% 1%
2600+ 41 54% 22% 20% 5%
Évolution par décennie (% des parties)
Décennie N parties 9…b6 9…a6 9…cxd4 9…Qe7
1950s 46 48% 35% 13% 2%
1960s 120 38% 52% 8% 1%
1970s 90 43% 44% 12% —
1980s 119 68% 21% 11% —
1990s 140 67% 16% 15% 1%
2000s 472 70% 10% 19% 1%
2010s 474 64% 17% 16% 2%
2020s 36 56% 22% 19% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…b6 64% 56% ▼ -8.4%
9…a6 17% 22% ▲ +5.1%
9…cxd4 16% 19% ▲ +3.0%
9…Qe7 2% 3% ▲ +1.1%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 4 parties
Carlsen, Magnus — 3 parties
Smyslov, Vladimir — 2 parties
Tal, Mikhail — 2 parties
Kasparov, Garry — 2 parties
Anand, Viswanathan — 1 partie
Kramnik, Vladimir — 1 partie
Parties historiques
9…b6 — 62.4% (934 parties)
1956 — Wade, Robert G vs Balanel, Ion — 1/2-1/2 — Marianske Lazne
1956 — Miguel, Nahuel vs Padevsky, Nikola — 1/2-1/2 — Moscow olm fin-A
1956 — Ivkov, Borislav vs Benko, Pal — 0-1 — Moskou olm
1956 — Gligorić, Svetozar vs Unzicker, Ferdinand, Dr. — 1-0 — Moscow RUS
1957 — Panno, Oscar vs Martinez, A. — 1-0 — Buenos Aires ARG
9…a6 — 20.2% (303 parties)
1955 — Minev, Nikolay N vs Aadhitha Karikalan — 1/2-1/2 — Zagreb CRO
1955 — Udovcic, Mijo vs Aadhitha Karikalan — 1-0 — Zagreb CRO
1956 — Middleton, Ian vs Aadhitha Karikalan — 0-1 — Moscow RUS
1957 — Lutikov, Anatoly S vs Gipslis, Aivars — 1/2-1/2 — Sverdlovsk
1957 — Miguel, Nahuel vs Kotov, Alexander — 1-0 — Mar del Plata ARG
9…cxd4 — 15.6% (234 parties)
1956 — Mikenas, Vladas vs Khasin, Abram — 0-1 — Leningrad RUS
1957 — Panno, Oscar vs Albert, Horacio — 1-0 — ?
1957 — Panno, Oscar vs Albert, Horacio — 1-0 — Mar del Plata ARG
1957 — Bertholdt, Dieter vs Portisch, Lajos — 0-1 — Reykjavik ISL
1957 — Averbach, J vs Estrin, Yakov — 1-0 — Moskvamasterskapet T
9…Qe7 — 1.2% (18 parties)
1958 — Weinstein, Raymond vs Byrne, Robert E — 1/2-1/2 — New York ch-USA
1966 — Spassky, Boris Vasily vs Rapaka Samuel Paul — 1/2-1/2 — Santa Monica, CA USA
1998 — Zsinka, Laszlo vs Mencinger, Vojko — 1/2-1/2 — Staatsliga B/Sus
1998 — Giorgadze, Giorgi Gel vs Timoscenko, Gennadij — 1-0 — Bad Woerishofen GER
2004 — Lautier, Joel vs Landa, Konstantin — 0-1 — ?