B61b - 7…a6 - Richter-Rauzer, Larsen (1949)

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B61b —
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 Bd7 7.Qd2 a6
Eval: [+0.46]
Les coups candidats
8.O-O-O — 76.3% (679 parties)
Ambassadeurs : Kurpnieks, Vairis (18x), Ghitescu, Theodor (13x), Blasko, Istvan (9x), Sidenko, Anatoly Viktorovich (8x), Morgunov, Marc (8x), Lupulescu, Constantin (6x), Gheorghiu, Florin (5x), Schön, Antoni (5x)
8.f4 — 9.4% (84 parties)
Ambassadeurs : Lutikov, Anatoly S (2x), Ghitescu, Theodor (2x), Schmidt, Wlodzimierz (2x), Lau, Ralf (2x), Oltean, Dorel (2x), Averbakh, Yuri L (2x), Micalizzi, Giovanni (2x), Rubinetti, Jorge (1x)
8.Be2 — 5.1% (45 parties)
Ambassadeurs : Pugach, Alevtina (2x), Averbakh, Yuri L (2x), Zelcic, Robert (2x), Ramírez Moyano, Leandro (2x), Aponte De La Corte, Jose Manuel (1x), Garcia Vera, Oscar (1x), Maedler, Juergen, Dr. (1x), Ghitescu, Theodor (1x)
8.Bxf6 — 3.5% (31 parties)
Ambassadeurs : Boleslavsky, Isaac (2x), Hoffmann, Asa (1x), Steinmeyer, Robert (1x), Zuidema, Coen (1x), Gheorghiu, Florin (1x), Simagin, Vladimir (1x), Averbakh, Yuri L (1x), Fuchs, Reinhart (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8.O-O-O 8.f4 8.Be2 8.Bxf6
<1800 10 50% 20% 20% —
1800-2200 239 76% 7% 6% 3%
2200-2600 463 80% 9% 2% 4%
2600+ 16 100% — — —
Évolution par décennie (% des parties)
Décennie N parties 8.O-O-O 8.f4 8.Be2 8.Bxf6
1940s 2 50% — 50% —
1950s 5 40% 40% — 20%
1960s 68 54% 15% 19% 9%
1970s 67 85% 12% — —
1980s 17 59% 24% 6% —
1990s 68 65% 15% 12% 4%
2000s 177 76% 9% 6% 2%
2010s 212 79% 8% 4% 4%
2020s 274 82% 6% 1% 4%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8.O-O-O 79% 82% ▲ +3.7%
8.f4 8% 6% ▼ -2.7%
8.Be2 4% 1% ▼ -3.5%
8.Bxf6 4% 4% -0.1%
Joueurs célèbres
Champions du monde dans cette position
Anand, Viswanathan — 1 partie
Gukesh D — 1 partie
Carlsen, Magnus — 1 partie
Hou, Yifan — 1 partie
Parties historiques
8.O-O-O — 76.3% (679 parties)
1949 — Schmid, Lothar vs Eisinger, Max Jr — 1/2-1/2 — Bad Pyrmont GER
1958 — Gufeld, Eduard vs Simagin, Vladimir — 1/2-1/2 — Tashkent ch URS sf
1959 — Bondarevsky, Igor vs Averbach, Y. — 0-1 — Moscow RUS
1960 — Farre Mallofre, Miguel vs Karim, Wahid — 1/2-1/2 — Leipzig GER
1960 — Popov, Vladimir vs Malich, Burkhard, Dr. — 0-1 — Bad Salzungen GER
8.f4 — 9.4% (84 parties)
1958 — Kupper, Josef vs Panno, Oscar — 0-1 — Munich GER
1959 — Schoppmeyer Herbert vs Hoffmann Bruno — 1-0 — Lippstadt GER
1960 — Lutikov, Anatoly S vs Averbakh, Yuri L — 1-0 — Leningrad ch-URS
1960 — Jaeschke, Rita vs Nowarra, Waltraud — 0-1 — Leipzig GER
1961 — Schmidt, Wlodzimierz vs Rubinetti, Jorge — 1/2-1/2 — The Hague NED
8.Be2 — 5.1% (45 parties)
1946 — Aponte De La Corte, Jose Manuel vs Garcia Vera, Oscar — 0-1 — Parana
1960 — Kraidman, Yair vs Filipowicz, Andrzej — 0-1 — Leipzig GER
1960 — Tumurbator, Purev vs Gibbs, Peter Campbell — 1-0 — Leningrad RUS
1960 — Kondratiev, Aleksandr vs Pics — 1-0 — ?
1960 — Kondratiev, Pavel E vs Pietzsch, Wolfgang — 1-0 — Leningrad RUS
8.Bxf6 — 3.5% (31 parties)
1959 — Fuchs, Reinhart vs Hartmann, Claus — 1-0 — GDR-ch Leipzig GER
1961 — Simagin, Vladimir vs Averbakh, Yuri L — 1-0 — Moscow RUS
1961 — Boleslavsky, Isaac vs Abramovich Furman, Semyon — 0-1 — Moscow RUS
1961 — Boleslavsky, Isaac vs Furman, Slavomir — 0-1 — Moscow RUS
1965 — Hoffmann, Asa vs Steinmeyer, Robert — 1/2-1/2 — NY Manhattan ch