D93g —
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 (16x), Sinkovics, Peter (15x), Farago, Ivan (15x), Lukacs, Peter (13x), Kovacs, Arthur Dr. (13x), Vahidov, Tair (10x), Ftacnik, Lubomir (8x), Mikhalevski, Alexander (8x)
8.Qa4 — 8.6% (163 parties)
Ambassadeurs : Levenfish, Grigory (3x), Botvinnik, Mikhail (3x), Perez Ramos, Fernando Maria (2x), Capuano, Ruggiero (2x), Deidun, Joseph (2x), Douziech, Richard (2x), Strozewski, Frank (2x), Sajtlava, Igor (2x)
8.Nd2 — 6.7% (127 parties)
Ambassadeurs : Beutelhoff, Josef (5x), Dunkelblum, Arthur (2x), Rusjan, Dusan (2x), Zheng, Kevin (2x), Shapiro, Daniel (1x), Seidman, Herbert (1x), Lilienthal, Andor (1x), Boleslavsky, Isaac (1x)
8.Qd2 — 3.5% (67 parties)
Ambassadeurs : Sole Fabregat, Xavier (2x), Rauzer, Vsevolod (1x), Alatortsev, Vladimir N. (1x), Collins, Richard Arnold (1x), Basman, Michael J (1x), Leite, Rubem Gilberto (1x), Nobrega, Adaucto Wanderley (1x), Nance, D. (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 44 34% 11% 16% 7%
1800-2200 686 62% 12% 5% 6%
2200-2600 861 85% 5% 6% 1%
2600+ 19 100%
Évolution par décennie (% des parties)
Décennie N parties 8.Rc1 8.Qa4 8.Nd2 8.Qd2
1930s 9 78% 11%
1940s 10 20% 30% 20%
1950s 7 14% 29% 29%
1960s 27 37% 11% 33% 4%
1970s 70 83% 4% 6% 1%
1980s 122 81% 5% 7% 5%
1990s 277 77% 8% 6% 2%
2000s 507 66% 9% 8% 5%
2010s 800 74% 7% 5% 3%
2020s 73 60% 15% 8% 5%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8.Rc1 74% 60% ▼ -13.4%
8.Qa4 7% 15% ▲ +7.7%
8.Nd2 5% 8% ▲ +3.3%
8.Qd2 3% 5% ▲ +2.7%
Joueurs célèbres
Champions du monde dans cette position
Botvinnik, Mikhail — 3 parties
Anand, Viswanathan — 2 parties
Kramnik, Vladimir — 2 parties
Tal, Mikhail — 1 partie
Carlsen, Magnus — 1 partie
Parties historiques
8.Rc1 — 70.9% (1349 parties)
1946 — Martinez, Jose Enrique vs Lipiniks, Leonardo — 1/2-1/2 — Buenos Aires ch-ARG
1948 — Purdy, Cecil J S vs Koshnitsky, Gregory — 1-0 — Melbourne AUS
1954 — Aarland, Stein Arild vs Tal, Mikhail — 1/2-1/2 — Riga-ch Riga LAT
1963 — Uhlmann, Wolfgang vs Trifunovic, Petar — 1/2-1/2 — Havana CUB
1963 — De Greiff, B. vs Uhlmann, W. — 0-1 — Havana CUB
8.Qa4 — 8.6% (163 parties)
1933 — Schories, Georg vs Carls, Carl — 0-1 — Bad Pyrmont GER
1934 — Lachmann, Hans G vs Antze, Oskar — 1/2-1/2 — Aachen GER
1937 — Levenfish, Grigory vs Botvinnik, Mikhail — 1-0 — Leningrad RUS
1937 — Levenfish, Grigory vs Botvinnik, Mikhail — 1-0 — Leningrad/Moscow RUS
1937 — Levenfish, Grigory vs Botvinnik, Mikhail — 1-0 — Moscow RUS
8.Nd2 — 6.7% (127 parties)
1944 — Lilienthal, Andor vs Boleslavsky, Isaac — 0-1 — Moskou ch-URS
1946 — Shapiro, Daniel vs Seidman, Herbert — 0-1 — Pittsburgh
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
8.Qd2 — 3.5% (67 parties)
1931 — Rauzer, Vsevolod vs Alatortsev, Vladimir N. — 1/2-1/2 — Moskou ch-URS
1964 — Collins, Richard Arnold 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