D44c - 6…b5 - Botvinnik (1952)

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D44c — Botvinnik (1952)
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 dxc4 6.e4 b5
Les coups candidats
Ambassadeurs : Noble, Mark Frederick (71x), Marbourg, Denny (47x), Shirov, Alexei (40x), Landero Luna, Vicente (32x), Compagnone, Gaetano (30x), Kahl, Fred (29x), Korneev, Oleg (29x), Shabalov, Alexander (23x)
Ambassadeurs : Lukacs, Peter (9x), Dizdar, Goran (7x), Hillarp Persson, Tiger (7x), Mueller, Karsten, Dr. (5x), Lerner, Konstantin Z (5x), Bakheet Farag (5x), Sulava, Nenad (4x), Feher, Gyula (4x)
7.Be2 — 0.7% (74 parties)
Ambassadeurs : Winants, Luc (2x), Lukacs, Peter (2x), Malmstroem, Jan Hendrik (2x), Lachmann, Hans G (1x), Meyer, Achile (1x), Meinberger, Leo (1x), Rossbach, Knut (1x), Van der Wiel, John T.H. (1x)
7.Qc2 — 0.2% (24 parties)
Ambassadeurs : Brindza, Istvan (2x), Lachmann, Hans G (1x), Gabriel, Gottfried (1x), Pedersen, Jens Otto (1x), Madsen, Peder (1x), Pachman, Ludek (1x), Jovcic, Milan (1x), Petrosian, Tigran V. (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7.e5 7.a4 7.Be2 7.Qc2
<1800 431 95% 3% 1% —
1800-2200 4131 95% 4% 1% 0%
2200-2600 4766 92% 7% 1% 0%
2600+ 213 96% 4% — —
Évolution par décennie (% des parties)
Décennie N parties 7.e5 7.a4 7.Be2 7.Qc2
1950s 80 92% 5% 1% 1%
1960s 101 90% 7% — 3%
1970s 142 90% 8% 1% 1%
1980s 811 87% 12% 1% 0%
1990s 1833 88% 11% 0% 0%
2000s 2958 93% 5% 1% 0%
2010s 3856 97% 2% 1% 0%
2020s 1203 97% 2% 0% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7.e5 97% 97% +0.3%
7.a4 2% 2% -0.1%
7.Be2 1% 0% -0.2%
7.Qc2 0% 0% -0.1%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 10 parties
Kasparov, Garry — 10 parties
Kramnik, Vladimir — 10 parties
Gukesh D — 4 parties
Botvinnik, Mikhail — 3 parties
Smyslov, Vladimir — 3 parties
Carlsen, Magnus — 3 parties
Ding, Liren — 3 parties
Karpov, Anatoly — 2 parties
Anand, Viswanathan — 1 partie
Ju, Wenjun — 1 partie
Parties historiques
7.e5 — 93.5% (10269 parties)
1950 — Smyslov, Vasily vs Bronstein, David I — 1-0 — Budapest HUN
1950 — Teschner, Rudolf vs Schmidt, Paul — 0-1 — Bad Pyrmont GER
1950 — Spanjaard, Eduard vs Bosch van Rosenthal, Edzard — 0-1 — Amsterdam ch-NED
1950 — Geller, Efim P. vs Foltys, Jan — 0-1 — Schiavno Zdroj
1950 — Smyslov, Vasily vs Bronstein, David I — 1-0 — Budapest ct
7.a4 — 5.3% (584 parties)
1950 — Trifunovic, Petar vs Van den Berg, Carel B — 0-1 — Amsterdam NED
1956 — Fuchs, Reinhart vs Knothe, Karl — 1-0 — Leipzig ch GDR
1959 — Tal, Mikhail vs Keller, Dieter — 1-0 — Zurich SUI
1959 — Alster, Ladislav vs Jensen, Erik Bartram — 1-0 — Marianske Lazne
1960 — Neikirkh, Oleg vs Hadjipetrov, Alexander — 1/2-1/2 — BUL-ch14 Sofia BUL
7.Be2 — 0.7% (74 parties)
1952 — Lachmann, Hans G vs Meyer, Achile — 1-0 — Guetersloh
1974 — Meinberger, Leo vs Rossbach, Knut — 1-0 — Ebersberg
1979 — Csonkics, Tunde vs Wiese, Malgorzata — 1-0 — Naleczow-W
1980 — Cooper, Jacob vs Knox, Victor W — 0-1 — Brighton ch-BCF
1982 — Rajna, George vs Lukacs, Peter — 1-0 — Budapest HUN
7.Qc2 — 0.2% (24 parties)
1958 — Petrosian, Tigran V. vs Neikirkh, Oleg — 1/2-1/2 — Portoroz izt
1966 — Lachmann, Hans G vs Gabriel, Gottfried — 1-0 — Detmold
1966 — Pachman, Ludek vs Jovcic, Milan — 1-0 — Titovo Uzice
1968 — Pedersen, Jens Otto vs Madsen, Peder — 0-1 — Denmark ch corr
1971 — Littlewood, John E vs Whiteley, Andrew Jonathan — 0-1 — Blackpool ch-BCF