C07e - 4…a6 - Tarrasch, Open (1951)

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C07e — Tarrasch, Open (1951)
1.e4 e6 2.d4 d5 3.Nd2 c5 4.Ngf3 a6
Les coups candidats
5.exd5 — 60.0% (2107 parties)
Ambassadeurs : Eingorn, Vereslav S (35x), Kiriakov, Petr (27x), Nikolic, Predrag (26x), Tibensky, Robert (20x), Dolmatov, Sergey (19x), Dreev, Aleksey (19x), Karlsson, Lars 1937 (15x), Zhdanenya, Konstantin (13x)
5.dxc5 — 26.4% (927 parties)
Ambassadeurs : Kiriakov, Petr (13x), Nikolic, Predrag (12x), ? (12x), Raicevic, Vladimir (11x), Legky, Nikolay A (10x), Eingorn, Vereslav S (7x), Dreev, Aleksey (6x), Blees, Albert (6x)
5.c3 — 9.6% (339 parties)
Ambassadeurs : Contin, Daniel (5x), Nikolic, Predrag (3x), Holsapple, Boyd (2x), Nokka, Risto (2x), Kekki, Petri (2x), Giulian, Philip M (2x), Laurent, Dominique (2x), Bivol, Alina (2x)
5.Bd3 — 2.2% (77 parties)
Ambassadeurs : Todorovic, Goran M (5x), Legky, Nikolay A (3x), Giaccio, Alfredo (3x), Aronin, Lev (2x), Rechel, Bernd (2x), Eingorn, Vereslav S (2x), Rolle, Eric (2x), Tibensky, Robert (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5.exd5 5.dxc5 5.c3 5.Bd3
<1800 96 60% 11% 24% 1%
1800-2200 924 58% 23% 15% 2%
2200-2600 2062 61% 29% 7% 3%
2600+ 67 57% 33% 9% 1%
Évolution par décennie (% des parties)
Décennie N parties 5.exd5 5.dxc5 5.c3 5.Bd3
1950s 30 67% 17% — 7%
1960s 33 64% 30% 3% —
1970s 69 51% 41% 1% 3%
1980s 569 67% 26% 4% 1%
1990s 690 60% 29% 7% 3%
2000s 817 64% 22% 10% 2%
2010s 956 54% 28% 15% 2%
2020s 350 56% 27% 13% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5.exd5 54% 56% ▲ +2.3%
5.dxc5 28% 27% -0.5%
5.c3 15% 13% ▼ -1.9%
5.Bd3 2% 3% +0.4%
Joueurs célèbres
Champions du monde dans cette position
Carlsen, Magnus — 4 parties
Anand, Viswanathan — 3 parties
Karpov, Anatoly — 2 parties
Tal, Mikhail — 2 parties
Botvinnik, Mikhail — 1 partie
Parties historiques
5.exd5 — 60.0% (2107 parties)
1950 — Kaitaba Lambert vs Donner, Bernd — 1-0 — Dubrovnik CRO
1950 — Lambert, Hans vs Donner, Jan-Hein — 1-0 — Dubrovnik olm
1950 — Unzicker, Ferdinand, Dr. vs Niephaus, Walter — 1/2-1/2 — FRG-ch Bad Pyrmont GER
1951 — Foltys, Jan vs Skold, Kristian — 1-0 — Marianske Lazne zt
1952 — Grob, Henry vs Unzicker, Ferdinand, Dr. — 1/2-1/2 — Lucerne SUI
5.dxc5 — 26.4% (927 parties)
1951 — Medina-Garcia, Antonio vs Moura, Jairo De Souza — 1-0 — Madrid ESP
1952 — Cortlever, Nico vs Van den Berg, Cees — 1-0 — Amsterdam NED
1952 — Szily, Jozsef vs Lengyel, Levente — 1-0 — Budapest HUN
1952 — Matanovic, Aleksandar vs Unzicker, Ferdinand, Dr. — 1/2-1/2 — Stockholm izt
1953 — Matanovic, Aleksandar vs Kupper, Josef — 1-0 — Opatija
5.c3 — 9.6% (339 parties)
1968 — Matanovic, Aleksandar vs Mikhalchishin, Adrian — 1-0 — Yugoslavia
1974 — Kjaerstad, Eivind J vs Pettersen, Henning — 1/2-1/2 — corr ch-NOR
1980 — Plaskett, H James vs Wicker, Kevin J — 1-0 — London ENG
1980 — Houston, David vs McCarthy, Moss — 0-1 — Brighton ch-BCF
1980 — Taulbut, Shaun M vs Tang, Hongjun — 1/2-1/2 — Mexico City MEX
5.Bd3 — 2.2% (77 parties)
1957 — Aronin, Lev vs Ragozin, Viacheslav — 1/2-1/2 — Leningrad RUS
1957 — Aronin, Lev vs Rakic, Tomislav — 0-1 — Wenen etc
1971 — Piasetski, Leon vs Karakasoglou, Alexandros — 1/2-1/2 — Athens GRE
1978 — Mestel, A Jonathan vs Forintos, Gyozo V — 1/2-1/2 — Esbjerg DEN
1986 — Hartman, Brian vs Ross, David — 1/2-1/2 — Winnipeg zt