C04i - 5.e5 Nd7 6.Nb3 a5 - Tarrasch, Guimard, Main Line (1957)

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C04i — Tarrasch, Guimard, Main Line (1957)
1.e4 e6 2.d4 d5 3.Nd2 Nc6 4.Ngf3 Nf6 5.e5 Nd7 6.Nb3 a5
Les coups candidats
7.a4 — 93.8% (817 parties)
Ambassadeurs : Ortiz Galvan, Manuel Eliu (15x), Drasko, Milan (14x), Skorna, Ullrich (12x), Prie, Eric (8x), Thorbergsson, Freysteinn (7x), Meinhardt, Maximilian, Dr. (6x), Sahovic, Dragutin (5x), Knudsen, John C (5x)
7.Bf4 — 2.5% (22 parties)
Ambassadeurs : Bernard, Ryszard (2x), Bednarski, Jacek (2x), Timman, Jan H (2x), Haas, Frank-Martin, Dr. (2x), Ferguson, Mark (2x), Drasko, Milan (1x), Kislov, Mikhail (1x), Doroshkievich, Vladimir K (1x)
7.Bg5 — 1.3% (11 parties)
Ambassadeurs : Chery, Eric (2x), Barbulescu, Dan (1x), Drasko, Milan (1x), Mary, Patrick (1x), Glemot Thierry (1x), Lafeuille, Bernard (1x), Haffner, Leon (1x), Guimaraes, Rui (1x)
7.Bb5 — 0.8% (7 parties)
Ambassadeurs : Voronova, Tatiana (1x), Grinfeld, Alla B (1x), Jaros, Bohumil (1x), Fiala, Jaroslav (1x), Kuzmin, Gennadi (1x), Panchenko, Alexander N (1x), Gruzmann, Boris (1x), Skorna, Ullrich (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7.a4 7.Bf4 7.Bg5 7.Bb5
<1800 27 96% — — —
1800-2200 292 94% 2% 1% 0%
2200-2600 456 95% 2% 1% 1%
2600+ 9 100% — — —
Évolution par décennie (% des parties)
Décennie N parties 7.a4 7.Bf4 7.Bg5 7.Bb5
1950s 7 100% — — —
1960s 6 100% — — —
1970s 29 86% 7% — 7%
1980s 99 86% 9% 1% 1%
1990s 105 90% 3% 3% 4%
2000s 182 95% 2% 2% —
2010s 362 96% 1% 1% —
2020s 81 100% — — —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7.a4 96% 100% ▲ +4.4%
7.Bf4 1% 0% ▼ -1.1%
7.Bg5 1% 0% ▼ -1.1%
7.Bb5 0% 0% +0.0%
Parties historiques
7.a4 — 93.8% (817 parties)
1953 — Koch, Berthold vs Bruechner, Siegfried — 1-0 — Jena ch DDR
1957 — Bronstein, David I vs Gusev, Yuri S — 1-0 — Moscow RUS
1957 — Bogdanov, Emil vs Haag, Ervin — 1/2-1/2 — Reykjavik ISL
1958 — Portisch, Lajos vs Thorbergsson, Freysteinn — 1/2-1/2 — Munchen olm
1958 — Kopilov, Nikolay Georgiyevich vs Uusi, Gunnar — 1-0 — Rostov on Don
7.Bf4 — 2.5% (22 parties)
1973 — Bernard, Ryszard vs Bednarski, Jacek — 0-1 — Lublin POL
1973 — Bernard, Ryszard vs Bednarski, Jacek — 0-1 — Lublin POL
1983 — Hurdle, Alan vs Carleton, John J — 1-0 — ?
1984 — Timman, Jan H vs Drasko, Milan — 1-0 — Sarajevo (Bosnia & Herzegovin
1984 — Chandler, Murray G vs Timman, Jan H — 0-1 — Amsterdam NED
7.Bg5 — 1.3% (11 parties)
1982 — Barbulescu, Dan vs Drasko, Milan — 1/2-1/2 — Plovdiv BUL
1995 — Glemot Thierry vs Lafeuille, Bernard — 1-0 — ?
1996 — Mary, Patrick vs Chery, Eric — 1/2-1/2 — AJEC/1239 corr
1997 — Haffner, Leon vs Chery, Eric — 1/2-1/2 — ?
2000 — Liwak, Przemyslaw vs Kleeschaetzky, Rainer — 1/2-1/2 — GER
7.Bb5 — 0.8% (7 parties)
1975 — Kuzmin, Gennadi vs Panchenko, Alexander N — 1-0 — Kishinev MDA
1979 — Voronova, Tatiana vs Grinfeld, Alla B — 1-0 — Tbilisi GEO
1989 — Jaros, Bohumil vs Fiala, Jaroslav — 0-1 — corr CSSR
1993 — Spangenberg, Hugo vs Reides, Marcelo — 1-0 — Buenos Aires ARG
1994 — Ena, Alessio vs Bernad Suarez, Antonio — 0-1 — E VI CEAPE corr