D93f - 7.dxc5 - Gruenfeld (1942)

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D93f — Gruenfeld (1942)
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.e3 c5 7.dxc5
Les coups candidats
Ambassadeurs : Grigore, George-Gabriel (17x), Sinkovics, Peter (17x), Bakheet Farag (15x), Kovacs, Arthur Dr. (13x), Lukacs, Peter (12x), Gauthier, Denis (7x), Ebner, Johann (6x), Uhlmann, Wolfgang (5x)
7…Ne4 — 25.5% (664 parties)
Ambassadeurs : Kovacs, Arthur Dr. (12x), Verich, Oleg (12x), Bakheet Farag (10x), Lukacs, Peter (8x), Obukhov, Gennady (8x), Leijen, Peter (7x), Nucci, Luciano (7x), Chin, Sheng Ern Matthew (7x)
7…Be6 — 1.3% (33 parties)
Ambassadeurs : Inkiov, Ventzislav (2x), Vadasz, Laszlo (1x), Barczay, Laszlo (1x), Rossolimo, Nicolas (1x), Seidman, Herbert (1x), Pytlakowski, Andrzej (1x), Furman, Semyon (1x), Knezevic, Milorad (1x)
7…dxc4 — 0.7% (19 parties)
Ambassadeurs : Mayer, Herbert, Dr. (1x), Huss, Rolf (1x), Garcia Boix, Raul (1x), Picornell Morant, Juan Carlos (1x), Jelen, Iztok (1x), Jelen, Igor (1x), Khachiyan, Melikset (1x), Kudrin, Sergey (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…Qa5 7…Ne4 7…Be6 7…dxc4
<1800 144 58% 38% 1% 3%
1800-2200 1013 78% 20% 1% 1%
2200-2600 1148 69% 30% 1% 0%
2600+ 33 58% 42% — —
Évolution par décennie (% des parties)
Décennie N parties 7…Qa5 7…Ne4 7…Be6 7…dxc4
1950s 11 64% 18% 18% —
1960s 30 90% 3% 7% —
1970s 104 66% 31% 3% —
1980s 169 70% 26% 4% 1%
1990s 332 80% 17% 2% 1%
2000s 624 81% 17% 1% 1%
2010s 1164 69% 29% 1% 1%
2020s 173 49% 49% — 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…Qa5 69% 49% ▼ -19.9%
7…Ne4 29% 49% ▲ +20.0%
7…Be6 1% 0% ▼ -0.5%
7…dxc4 1% 1% -0.1%
Joueurs célèbres
Champions du monde dans cette position
Kramnik, Vladimir — 3 parties
Anand, Viswanathan — 2 parties
Tal, Mikhail — 1 partie
Kasparov, Garry — 1 partie
Carlsen, Magnus — 1 partie
Parties historiques
7…Qa5 — 72.1% (1879 parties)
1950 — Rossetto, Hector vs Gligoric, Sofija — 0-1 — Mar del Plata ARG
1953 — Udovcic, Mijo vs Porreca, Giorgio — 1/2-1/2 — Opatija
1954 — Aarland, Stein Arild vs Tal, Mikhail — 1/2-1/2 — Riga-ch Riga LAT
1954 — Dunkelblum, Arthur vs Wade, Robert G — 0-1 — Munich GER
1955 — Filip, Florin vs Nan Shwe Yin Thun — 1-0 — ?
7…Ne4 — 25.5% (664 parties)
1955 — Filip, Florin vs Fischl, Kamilla — 1/2-1/2 — ?
1957 — Rellstab, Ludwig vs Lehmann, Heinz — 1/2-1/2 — FRG-ch Bad Neuenahr
1964 — Pomar Salamanca, Arturo vs Lehmann, Heinz — 1/2-1/2 — Malaga ESP
1972 — Langeweg, Kick vs Stein, Leonid — 1/2-1/2 — Kislovodsk
1973 — Kluger, Gyula vs Varnusz, Egon — 1-0 — ?
7…Be6 — 1.3% (33 parties)
1954 — Rossolimo, Nicolas vs Seidman, Herbert — 1/2-1/2 — New York ch-USA
1955 — Pytlakowski, Andrzej vs Furman, Semyon — 1-0 — POL-URS Lodz POL
1968 — Knezevic, Milorad vs Khasin, Abram — 1/2-1/2 — Kislovodsk
1969 — Vadasz, Laszlo vs Barczay, Laszlo — 1/2-1/2 — Budapest ch-HUN
1971 — Vranesic, Zvonko vs Hambleton, I. — 1-0 — Vancouver
7…dxc4 — 0.7% (19 parties)
1989 — Mayer, Herbert, Dr. vs Huss, Rolf — 1/2-1/2 — GER
1993 — Jelen, Iztok vs Jelen, Igor — 1/2-1/2 — Slovakia ch
1997 — Garcia Boix, Raul vs Picornell Morant, Juan Carlos — 1-0 — Albal
2003 — Khachiyan, Melikset vs Kudrin, Sergey — 1-0 — Kansas USA
2006 — Karnaukhova, Elmira vs Grandelius, Nils — 1-0 — Pardubice CZE