B68b - 10.Be2 - Richter-Rauzer (1954)

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B68b — Richter-Rauzer (1954)
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7 9.f4 Be7 10.Be2
Les coups candidats
10…b5 — 22.5% (107 parties)
Ambassadeurs : Bonte, Arghir (2x), Pandavos, Panayotis (2x), Darga, Klaus (1x), Nievergelt, Erwin (1x), Bratschko (1x), Haamann (1x), Agus, Loren`s (1x), Perez Perez, Francisco Jose (1x)
Ambassadeurs : Diaz, Joaquin, Dr. (2x), Granda Zuniga, Julio E (2x), Zhidkov, Valery S (2x), Byrne, Robert E (2x), Mnatsakanian, Eduard A (1x), Hellman, Amir (1x), Hallerod, Ralph (1x), Selimanov, Vladimir (1x)
10…h6 — 17.4% (83 parties)
Ambassadeurs : Byrne, Robert E (2x), Mednis, Edmar J (2x), Damljanovic, Branko (2x), Kavalek, Lubomir (2x), Tyomkin, Dimitri (2x), Wosch, Arkadiusz (2x), Soto Ramirez, Andres Camilo (2x), Schmid, Leo (1x)
10…O-O — 15.5% (74 parties)
Ambassadeurs : Heinbuch, Detlef Ulrich (2x), Nunn, John D M (2x), Jansa, Vlastimil (2x), Ivanov, Alexander (2x), Simon, Leslie (1x), Rupeiks, Robert (1x), Camara, Helder (1x), Rocha, Antonio (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 10…b5 10…Qc7 10…h6 10…O-O
<1800 18 39% 17% 11% 22%
1800-2200 152 29% 18% 17% 10%
2200-2600 214 19% 20% 22% 21%
2600+ 4 25% — — 50%
Évolution par décennie (% des parties)
Décennie N parties 10…b5 10…Qc7 10…h6 10…O-O
1950s 16 12% 38% 6% 6%
1960s 17 24% 29% 12% —
1970s 41 12% 34% 15% 20%
1980s 47 9% 26% 9% 36%
1990s 75 24% 27% 11% 19%
2000s 95 21% 20% 15% 19%
2010s 102 27% 20% 18% 13%
2020s 83 31% 12% 36% 4%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
10…b5 27% 31% ▲ +3.9%
10…Qc7 20% 12% ▼ -7.6%
10…h6 18% 36% ▲ +18.5%
10…O-O 13% 4% ▼ -9.1%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 1 partie
Ding, Liren — 1 partie
Parties historiques
10…b5 — 22.5% (107 parties)
1954 — Letelier Martner, Rene vs Corral, Hector — 1-0 — Montevideo URU
1958 — Agus, Loren`s vs Perez Perez, Francisco Jose — 1-0 — Valencia
1965 — Darga, Klaus vs Nievergelt, Erwin — 1-0 — Berlin West
1965 — Bratschko vs Haamann — 0-1 — cr.
1965 — Kavalek, Lubomir vs Pedersen, Svend — 1-0 — Sinaia
10…Qc7 — 22.3% (106 parties)
1954 — Cross, Robert Gary vs Grumette, L — 1-0 — Los Angeles, CA USA
1955 — Lapiken, Peter Petrovich vs Rossolimo, Nicolas — 1/2-1/2 — Long Beach, CA USA
1955 — Elliott, Henry J vs Collins, John W — 1-0 — New York, NY USA
1956 — Fichtl, Jiri vs Sajtar, Jaroslav — 1-0 — Podebrady CZE
1957 — Hallerod, Ralph vs Selimanov, Vladimir — 1/2-1/2 — Toronto CAN
10…h6 — 17.4% (83 parties)
1957 — Flores Alvarez, Rodrigo vs Alonzo Castillo Jimenez — 1-0 — Santiago CHI
1960 — Schmid, Leo vs Aarohan Kalita — 1-0 — corr Blumich mem
1969 — Byrne, Robert E vs Mednis, Edmar J — 1/2-1/2 — New York ch-USA
1974 — Rolle, Alexander vs Ree, Hans — 0-1 — Nice FRA
1974 — Buza, Adrian vs Mititelu, Gheorghe — 1/2-1/2 — Bucharest ROU
10…O-O — 15.5% (74 parties)
1958 — Simon, Leslie vs Rupeiks, Robert — 1-0 — Barbera Santa CA
1972 — Fischer, Kevin R vs Spassky, Boris V. — 1/2-1/2 — Reykjavik wch-m
1976 — Gonzalez, Benito E vs Cibin, Aurelio Isidoro — 0-1 — LADAC VI ch-ARG pr '74 APA.VI
1977 — Gereben, Erno vs Streich, Gerhard — 1-0 — Lugano SUI
1977 — Tal, Mikhail vs Spassov, Liuben — 1-0 — Sochi RUS