D23i - 4.Qa4+ c6 5.Qxc4 - QGA: Mannheim (1935)

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D23i — QGA: Mannheim (1935)
1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.Qa4+ c6 5.Qxc4
Les coups candidats
Ambassadeurs : Epishin, Vladimir (35x), Khenkin, Igor (30x), Deforel, Jorge Eduardo (22x), Cramling, Pia (20x), Wojtkiewicz, Aleksander (18x), Kurajica, Bojan (17x), Svetushkin, Dmitry (16x), Mamedyarov, Shakhriyar (14x)
5…Bg4 — 18.7% (1387 parties)
Ambassadeurs : Dreev, Aleksey (16x), Postny, Evgeny (12x), Khenkin, Igor (9x), Le, Quang Liem (9x), Baraeva, Irina (8x), Sukhareva, Evgeniya (8x), Nguyen Van Huy (8x), Gelfand, Boris (7x)
5…e6 — 2.9% (214 parties)
Ambassadeurs : Tran, Phan Bao Khanh (3x), Chloupek, Stanislav (2x), Ye, Rongguang (2x), Gutmakher, Olga (2x), Thomassen, Joachim (2x), Englert, Fabian (2x), Smiley, William R. (2x), Nguyen, Van Thanh (2x)
5…b5 — 2.9% (213 parties)
Ambassadeurs : Tania, Sachdev (3x), Peric, Slavisa (2x), Parker, Jonathan F (2x), Beaton, Kenneth S. (2x), Kleeschaetzky, Rainer (2x), Ozturk Orenli, Kubra (2x), Saikhanzaya, Ganbaatar (2x), Sergeyev, Vladislav A (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5…Bf5 5…Bg4 5…e6 5…b5
<1800 189 68% 14% 4% 2%
1800-2200 2042 68% 14% 4% 4%
2200-2600 4590 71% 20% 2% 3%
2600+ 345 61% 37% 0% 0%
Évolution par décennie (% des parties)
Décennie N parties 5…Bf5 5…Bg4 5…e6 5…b5
1950s 6 33% 33% 17% —
1960s 42 55% 29% — 2%
1970s 25 64% 16% 4% —
1980s 155 78% 6% 3% —
1990s 656 85% 3% 3% 3%
2000s 1951 77% 10% 3% 4%
2010s 3445 62% 27% 3% 2%
2020s 1142 69% 20% 3% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5…Bf5 62% 69% ▲ +6.5%
5…Bg4 27% 20% ▼ -6.7%
5…e6 3% 3% +0.2%
5…b5 2% 3% ▲ +0.7%
Joueurs célèbres
Champions du monde dans cette position
Ju, Wenjun — 10 parties
Anand, Viswanathan — 6 parties
Kramnik, Vladimir — 3 parties
Tal, Mikhail — 2 parties
Gukesh D — 2 parties
Smyslov, Vladimir — 1 partie
Kasparov, Garry — 1 partie
Carlsen, Magnus — 1 partie
Karpov, Anatoly — 1 partie
Parties historiques
5…Bf5 — 69.5% (5162 parties)
1950 — Shainswit, George vs Devos, Paul — 1-0 — Dubrovnik CRO
1959 — Levin, Mikhail vs Kwiatkowski, Seweryn — 1/2-1/2 — Kiev UKR
1962 — Clarke, Peter vs Alexander Ronald Cheng — 1/2-1/2 — Hastings ENG
1963 — Taimanov, Mark vs Geller, Efim P. — 0-1 — Leningrad ch-URS
1963 — Shamkovich, Leonid vs Kolobov, Yury — 1-0 — Moscow RUS
5…Bg4 — 18.7% (1387 parties)
1952 — Pytlakowski, Andrzej vs Smyslov, Vasily — 0-1 — Helsinki olm
1959 — Benko, Pal vs Olafsson, Fridrik — 0-1 — Bled/Zagreb/Belgrade
1961 — Dolezal, Jiri vs Kavalek, Lubomir — 0-1 — Kosice
1962 — Taimanov, Mark vs Novopashin, Arkady — 1-0 — Erevan ch-URS
1962 — Ivkov, Borislav vs Mihaljcisin, Mihajlo — 1/2-1/2 — Vrnjacka Banja SRB
5…e6 — 2.9% (214 parties)
1952 — Ansell, Edmund George vs Cannon, L John — 1-0 — Chester
1971 — Sandifort, Jerry vs Duistermaat, Hans — 0-1 — Rotterdam-Utrecht
1983 — Segal, Alexandru Sorin vs Masculo, Jose — 1-0 — Sao Paulo BRA
1986 — Rosemann, Uwe vs Pieper-Emden, Carsten — 0-1 — Halle GER
1986 — Benko, Pal vs Schoen, Wolfram — 1/2-1/2 — Augsburg GER
5…b5 — 2.9% (213 parties)
1963 — Lehman Okoyo Kisia vs Pomar, Humberto — 1-0 — Lerida
1991 — Hoffman, Alejandro vs Cruz-Lopez Claret, Carlos — 1-0 — Elgoibar ESP
1992 — Peric, Slavisa vs Molnar, Bela — 1/2-1/2 — Kecskemet ch
1993 — Giffard, Nicolas vs Sarmiento Alfonso, Braulio — 1/2-1/2 — Las Palmas III
1994 — Pereira, Alvaro vs Santos, Marco — 1-0 — Lisbon-ch Lisbon POR