E07k - 8.b3 - Closed (1925)

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E07k — Closed (1925)
1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.Nc3 c6 8.b3
Les coups candidats
8…b6 — 67.5% (1338 parties)
Ambassadeurs : Ciric, Dragoljub M (5x), Heck, Norbert (5x), Miguel, Nahuel (4x), Rossetto, Hector (4x), Liebert, Heinz (4x), Udovcic, Mijo (3x), Bronstein, David I (3x), Miladinovic, Igor (3x)
8…Re8 — 13.1% (260 parties)
Ambassadeurs : Kube, Hannelore (2x), Lins, Frank Roberto Santana (2x), Bulajic, Ratko (2x), Panno, Oscar (1x), Puiggros, Guillermo (1x), ? (1x), Podgaetsky, Alexsander (1x), Kowalewski, Kirsten (1x)
8…Ne4 — 3.3% (65 parties)
Ambassadeurs : Gilruth, Peter (1x), Turner, John (1x), Zatulovskaya, Tatiana (1x), Mutchnik, Larisa (1x), Gudat, Alfons (1x), Hentzschel, Erhard (1x), Liebert, Heinz (1x), Walther, Hans-Wolfgang (1x)
8…Qa5 — 3.2% (64 parties)
Ambassadeurs : Magrin, Antonio (2x), Brinck-Claussen, Bjorn (1x), Canton, B. (1x), Bernstein, Ossip (1x), Prins, Lodewijk (1x), Pyhala, Antti (1x), Henttinen, Markku I.O. (1x), Molaschi (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8…b6 8…Re8 8…Ne4 8…Qa5
<1800 140 54% 21% 4% 2%
1800-2200 900 60% 17% 5% 4%
2200-2600 660 83% 5% 3% 3%
2600+ 20 95% — — —
Évolution par décennie (% des parties)
Décennie N parties 8…b6 8…Re8 8…Ne4 8…Qa5
1950s 20 75% 5% — 5%
1960s 35 80% 3% — 3%
1970s 63 76% 14% — 2%
1980s 82 74% 13% 2% 4%
1990s 345 66% 15% 3% 4%
2000s 497 64% 14% 5% 3%
2010s 725 66% 14% 3% 4%
2020s 214 78% 8% 2% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8…b6 66% 78% ▲ +11.8%
8…Re8 14% 8% ▼ -5.8%
8…Ne4 3% 2% ▼ -1.2%
8…Qa5 4% 1% ▼ -2.8%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 1 partie
Hou, Yifan — 1 partie
Kramnik, Vladimir — 1 partie
Parties historiques
8…b6 — 67.5% (1338 parties)
1950 — Udovcic, Mijo vs Krulc, Ivan — 1-0 — Maribor
1950 — Stalda, Giuseppe vs Vukovic, Sava — 0-1 — Venice ITA
1950 — Miguel, Nahuel vs Foltys, Jan — 1-0 — Amsterdam NED
1950 — Miguel, Nahuel vs Foltys, Jan — 1-0 — Amsterdam NED
1951 — Gligoric, Sofija vs Rabar, Braslav — 0-1 — Yugoslavia
8…Re8 — 13.1% (260 parties)
1958 — Panno, Oscar vs Puiggros, Guillermo — 1/2-1/2 — Buenos Aires ARG
1963 — ? vs Podgaetsky, Alexsander — 1-0 — Kiev UKR
1970 — Da Silva, Luiz Tavares vs Lins, Frank Roberto Santana — 0-1 — 37. BRA ch Recife BRA
1970 — Tavares da Silva, Luiz vs Lins, Frank Roberto Santana — 0-1 — Recife
1974 — Vadasz, Laszlo vs Ljuca, Mirsad — 1-0 — Sombor
8…Ne4 — 3.3% (65 parties)
1983 — Zatulovskaya, Tatiana vs Mutchnik, Larisa — 1-0 — Volgograd RUS
1984 — Gilruth, Peter vs Turner, John — 1-0 — Thessaloniki olm
1990 — Mochalov, Evgeny V vs Smagin, Sergey — 1-0 — Podolsk tt
1990 — Larsen, Flemming Bo vs Simonsen, Michael — 1-0 — Randers DEN
1991 — Larsen, Flemming vs Jessen, Ernst Michael — 1/2-1/2 — Lyngby op Lyngby DEN
8…Qa5 — 3.2% (64 parties)
1959 — Bernstein, Ossip vs Prins, Lodewijk — 0-1 — Madrid ESP
1967 — Brinck-Claussen, Bjorn vs Canton, B. — 1-0 — Copenhagen DEN
1976 — Molaschi vs Magrin, Antonio — 0-1 — cr.
1981 — Harestad, Thor Geir vs Gundersen, Helge — 1-0 — Kirkenes
1984 — Pyhala, Antti vs Henttinen, Markku I.O. — 1-0 — Helsinki FIN