B74j - 9…Be6 10.f4 Na5 11.f5 Bc4 12.Bd3 - Dragon, Classical, Spielmann Variation (1939)

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B74j — Dragon, Classical, Spielmann Variation (1939)
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2 Nc6 8.O-O O-O 9.Nb3 Be6 10.f4 Na5 11.f5 Bc4 12.Bd3
Les coups candidats
12…Bxd3 — 54.8% (108 parties)
Ambassadeurs : Rantanen, Yrjo A. (3x), Ruefenacht, Matthias (2x), Tsomis, Dimitrios (2x), Frank, Mario (2x), Enigk, Guenter (1x), Pietzsch, Wolfgang (1x), Kotlerman, S. (1x), Goldberg, Grigory A (1x)
12…Nxb3 — 13.7% (27 parties)
Ambassadeurs : Elter, Sophia (1x), Wanetick (1x), Szabo, Laszlo (1x), Gereben, Erno (1x), Cortlever, Nico (1x), Adhrit Mandal (1x), Theophilo, Alberto (1x), Mangini, Jose Henrique de Mello (1x)
12…Rc8 — 9.6% (19 parties)
Ambassadeurs : Kotronias, Vasilios (1x), Maris, Ioannis (1x), Kowalewski, Kirsten (1x), Hamm, Sylvia (1x), Knight, Timothy (1x), Oney, Adil Feridun (1x), Hecht, Hans-Joachim (1x), Tarjan, James (1x)
12…b5 — 8.6% (17 parties)
Ambassadeurs : El Debs, Felipe de Cresce (2x), Yurkov, Vladimir (1x), Zaitsev, Igor A (1x), Petrushin, Alexander I (1x), Peresipkin, Vladimir (1x), Weber, Peter (1x), Stoeber, Michael (1x), Faure, Jean-marc (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 12…Bxd3 12…Nxb3 12…Rc8 12…b5
<1800 7 57% — 14% —
1800-2200 42 52% 17% 7% 17%
2200-2600 98 54% 10% 11% 9%
Évolution par décennie (% des parties)
Décennie N parties 12…Bxd3 12…Nxb3 12…Rc8 12…b5
1950s 5 40% 60% — —
1960s 8 38% 12% — 12%
1970s 18 61% 11% 11% 11%
1980s 29 69% 7% 10% 7%
1990s 61 51% 13% 10% 3%
2000s 52 56% 15% 12% 13%
2010s 22 50% 9% 9% 14%
2020s 2 50% 50% — —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
12…Bxd3 50% 50% +0.0%
12…Nxb3 9% 50% ▲ +40.9%
12…Rc8 9% 0% ▼ -9.1%
12…b5 14% 0% ▼ -13.6%
Parties historiques
12…Bxd3 — 54.8% (108 parties)
1951 — Kotlerman, S. vs Goldberg, Grigory A — 1-0 — Baku AZE
1954 — Rapaka Samuel Paul vs Hendricks, Wade — 0-1 — California
1961 — Enigk, Guenter vs Pietzsch, Wolfgang — 1/2-1/2 — DDR
1961 — Drimer, Dolfi vs Octaviano, Patrick Matheus — 1-0 — Romania
1969 — Neckar, Lubomir vs Vujacic, Borivoje — 1/2-1/2 — Stockholm SWE
12…Nxb3 — 13.7% (27 parties)
1950 — Szabo, Laszlo vs Gereben, Erno — 1-0 — Budapest HUN
1952 — Cortlever, Nico vs Adhrit Mandal — 0-1 — Helsinki FIN
1957 — Elter, Sophia vs Wanetick — 1-0 — New Jersey
1966 — Theophilo, Alberto vs Mangini, Jose Henrique de Mello — 1/2-1/2 — Belo Horizonte
1976 — Hultquist, Torsten vs Nordstrom, Eric — 1-0 — corr SWE/K
12…Rc8 — 9.6% (19 parties)
1973 — Knight, Timothy vs Oney, Adil Feridun — 1/2-1/2 — Groningen NED
1974 — Hecht, Hans-Joachim vs Tarjan, James — 1/2-1/2 — Nice FRA
1986 — Kowalewski, Kirsten vs Hamm, Sylvia — 1/2-1/2 — Nordhausen ch35-DDR wmn
1988 — Kotronias, Vasilios vs Maris, Ioannis — 1-0 — ?
1988 — Rhodin, Christian vs Oppitz, Peter — 1/2-1/2 — GER
12…b5 — 8.6% (17 parties)
1963 — Yurkov, Vladimir vs Zaitsev, Igor A — 1/2-1/2 — Moscow RUS
1977 — Petrushin, Alexander I vs Peresipkin, Vladimir — 1-0 — Baku AZE
1979 — Rantanen, Yrjo A. vs Jensen, Stein — 1-0 — Sigurd Svedenborgs m
1987 — Weber, Peter vs Stoeber, Michael — 1-0 — Leichlingen
1988 — Faure, Jean-marc vs Levacic, Damir — 1-0 — Geneva SUI