E07b - 7.b3 - Closed (1933)

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E07b — Closed
1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.b3
Les coups candidats
Ambassadeurs : Sliwa, Bogdan (3x), Kunsztowicz, Uwe (3x), Ujtelky, Maximilian (2x), Forintos, Gyozo V (2x), Pogats, Jozsef Jr. (2x), Raicevic, Vladimir (2x), Fauland, Alexander (2x), Rattinger, Thomas (2x)
7…b6 — 32.6% (272 parties)
Ambassadeurs : Bisguier, Arthur B (5x), Pachman, Ludek (2x), Farago, Ivan (2x), Palacios Perez, Manuel (2x), Shevts (2x), Buettner, Ulrich (2x), Perkins, Alan H (1x), Clarke, Peter H (1x)
7…Ne4 — 11.9% (99 parties)
Ambassadeurs : Carls, Carl (1x), Schmidt, Paul Felix (1x), Zita, Filip (1x), Price, Harold Edwin (1x), Grau, Roberto G (1x), Lalich, Voyin (1x), Castillo, Mariano (1x), Gromer, Aristide (1x)
7…c5 — 9.1% (76 parties)
Ambassadeurs : Opocensky, Karel (1x), Stoeckl, Ernst (1x), Bogoljubow, Efim (1x), Maroczy, Geza (1x), Helling, Karl (1x), Steiner, Herman (1x), Lendl, Jiri (1x), Novak, Ervin (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…c6 7…b6 7…Ne4 7…c5
<1800 21 29% 38% — 14%
1800-2200 326 33% 30% 15% 11%
2200-2600 262 40% 35% 9% 6%
2600+ 9 — 11% — —
Évolution par décennie (% des parties)
Décennie N parties 7…c6 7…b6 7…Ne4 7…c5
1920s 1 100% — — —
1930s 4 — — 25% 50%
1940s 8 25% — 62% 12%
1950s 17 35% 35% 6% —
1960s 24 46% 42% — 4%
1970s 46 30% 50% 4% 11%
1980s 51 41% 33% 6% 10%
1990s 174 41% 33% 14% 6%
2000s 203 35% 32% 12% 10%
2010s 252 32% 30% 14% 11%
2020s 54 26% 33% 4% 6%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…c6 32% 26% ▼ -5.8%
7…b6 30% 33% ▲ +3.2%
7…Ne4 14% 4% ▼ -10.6%
7…c5 11% 6% ▼ -5.6%
Joueurs célèbres
Champions du monde dans cette position
Botvinnik, Mikhail — 1 partie
Parties historiques
7…c6 — 35.0% (292 parties)
1925 — Reti, Richard vs Romanovsky, Pjotr — 0-1 — Leningrad RUS
1945 — Chekhover, Vitaly vs Bondarevsky, Igor — 1/2-1/2 — Moskou ch-URS
1949 — Goldberg, Grigory A vs Liublinsky, Victor — 1-0 — Moscow RUS
1951 — Fuderer, Andrija vs Germek, Milan — 1/2-1/2 — Sarajevo BIH
1952 — Sowinski, Jerzy vs Sliwa, Bogdan — 0-1 — Katowice POL
7…b6 — 32.6% (272 parties)
1954 — Benko, Francisco vs Sanguinetti Lopez, Jose Pablo — 0-1 — Mar del Plata ARG
1955 — Moller, Per vs Ravn, Palle — 0-1 — Aalborg DEN
1956 — Rantanen, Martti vs Stenberg, O. — 1/2-1/2 — Moscow RUS
1957 — Mednis, Edmar J vs Drimer, Dolfi — 1/2-1/2 — Reykjavik ISL
1957 — Tavares Patino, Leonardo Ivan vs Engels, Ludwig — 1/2-1/2 — Rio de Janeiro zt
7…Ne4 — 11.9% (99 parties)
1938 — Grau, Roberto G vs Lalich, Voyin — 1-0 — Buenos Aires ARG
1941 — Carls, Carl vs Schmidt, Paul Felix — 0-1 — Krakow/Warsaw
1941 — Castillo, Mariano vs Gromer, Aristide — 0-1 — Sao Paulo BRA
1947 — Zita, Filip vs Price, Harold Edwin — 1-0 — Midlands-Czechoslovakia
1948 — Tylor, Theodore Henry vs Koenig, Imre — 0-1 — Hastings ENG
7…c5 — 9.1% (76 parties)
1930 — Helling, Karl vs Steiner, Herman — 1/2-1/2 — Berlin GER
1933 — Bogoljubow, Efim vs Maroczy, Geza — 1/2-1/2 — Scheveningen NED
1947 — Opocensky, Karel vs Stoeckl, Ernst — 1/2-1/2 — Vienna AUT
1964 — Lendl, Jiri vs Novak, Ervin — 1/2-1/2 — Brno CZE
1972 — Denes, Jozsef vs Willy, Otto — 1/2-1/2 — Pula CRO