D93g - 7…Qa5 - Gruenfeld (1931)

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D93g — Gruenfeld (1931)
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.e3 c5 7.dxc5 Qa5
Les coups candidats
Ambassadeurs : Grigore, George-Gabriel (17x), Sinkovics, Peter (17x), Bakheet Farag (16x), Lukacs, Peter (13x), Kovacs, Arthur Dr. (13x), Gauthier, Denis (7x), Ebner, Johann (6x), Uhlmann, Wolfgang (5x)
8.Qa4 — 8.1% (155 parties)
Ambassadeurs : Gligoric, Sofija (2x), Perez Ramos, Fernando Maria (2x), Capuano, Ruggiero (2x), Deidun, Joseph Jr (2x), Douziech, Richard (2x), Lopez Heras, Arturo (2x), Zivkovic, Aleksandar (1x), Knezevic, Milorad (1x)
8.Nd2 — 6.7% (128 parties)
Ambassadeurs : Dunkelblum, Arthur (2x), Ravikumar, Vaidyanathan (2x), Guenther, Thomas (2x), Sailer, Wolfgang (2x), Zaitsev, Alexander (1x), Honfi, Karoly (1x), Byrne, Robert E (1x), Haygarth, Michael J (1x)
8.Qd2 — 3.5% (66 parties)
Ambassadeurs : Haeberle, Adolf (2x), Sole Fabregat, Xavier (2x), Collins, Richard (1x), Basman, Michael J (1x), Martinez De Negri, M. Agustina (1x), Olazarri, Marcelo (1x), Leite, Rubem Gilberto (1x), Nobrega, Adaucto Wanderley (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8.Rc1 8.Qa4 8.Nd2 8.Qd2
<1800 85 52% 11% 12% 7%
1800-2200 796 65% 10% 5% 5%
2200-2600 808 83% 5% 6% 1%
2600+ 19 100% — — —
Évolution par décennie (% des parties)
Décennie N parties 8.Rc1 8.Qa4 8.Nd2 8.Qd2
1950s 7 14% 29% 29% —
1960s 27 33% 11% 37% 4%
1970s 70 83% 4% 6% 1%
1980s 126 82% 5% 6% 5%
1990s 277 77% 8% 6% 2%
2000s 510 66% 9% 8% 5%
2010s 811 74% 7% 5% 3%
2020s 85 61% 15% 8% 5%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8.Rc1 74% 61% ▼ -12.4%
8.Qa4 7% 15% ▲ +8.0%
8.Nd2 5% 8% ▲ +3.3%
8.Qd2 3% 5% ▲ +2.0%
Joueurs célèbres
Champions du monde dans cette position
Anand, Viswanathan — 2 parties
Kramnik, Vladimir — 2 parties
Tal, Mikhail — 1 partie
Carlsen, Magnus — 1 partie
Parties historiques
8.Rc1 — 71.5% (1368 parties)
1954 — Aarland, Stein Arild vs Tal, Mikhail — 1/2-1/2 — Riga-ch Riga LAT
1963 — De Greif, Boris vs Uhlmann, Wolfgang — 0-1 — Havana CUB
1963 — Uhlmann, Wolfgang vs Trifunovic, Petar — 1/2-1/2 — Havana CUB
1964 — Zaitsev, Alexander vs Honfi, Karoly — 1-0 — Ordzhonikidze
1964 — Kortchnoi, V. vs Stein, Leon Rico — 1/2-1/2 — Moskou zt
8.Qa4 — 8.1% (155 parties)
1950 — Rossetto, Hector vs Gligoric, Sofija — 0-1 — Mar del Plata ARG
1955 — Filip, Florin vs Nan Shwe Yin Thun — 1-0 — ?
1962 — Lukic, Arsenije vs Kupreianov, George — 0-1 — Vrnjacka Banja SRB
1963 — Saboya, Fred vs Mangini, Jose Henrique de Mello — 1-0 — Recife
1966 — Zivkovic, Aleksandar vs Knezevic, Milorad — 0-1 — Venice ITA
8.Nd2 — 6.7% (128 parties)
1954 — Dunkelblum, Arthur vs Wade, Robert G — 0-1 — Munich GER
1955 — Kahn, Manfred vs Zirngibl, Albert — 0-1 — Zwickau
1960 — Dunkelblum, Arthur vs Byrne, Robert E — 0-1 — Leipzig GER
1961 — Damjanovic, Mato vs Bulat, Ante — 0-1 — Portoroz SLO
1963 — Saemisch, Friedrich vs Kramer, Haije — 1/2-1/2 — Beverwijk NED
8.Qd2 — 3.5% (66 parties)
1964 — Collins, Richard vs Basman, Michael J — 1-0 — ?
1971 — Leite, Rubem Gilberto vs Nobrega, Adaucto Wanderley — 0-1 — Fortaleza BRA
1980 — Dougherty, Michael vs Angermann, John — 1-0 — Toronto CAN
1981 — Zeisner, U. vs Buchner, Gernot — 0-1 — Duitsland tt
1987 — Skembris, Spyridon vs Sibarevic, Milenko — 1-0 — Banja Luka BIH