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D77c —
1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O c5 7.dxc5 dxc4
Les coups candidats
8.Qa4 — 38.3% (44 parties)
Ambassadeurs : Tomaszewski, Kacper (2x), Bak, Istvan (1x), Liptay, Laszlo Dr. (1x), Cherepkov, Alexander V (1x), Fridstein, German (1x), Diego Alejandro Castro Ponce (1x), Acebal Muniz, Antonio (1x), Quinteros, Miguel A. (1x)
8.Na3 — 29.6% (34 parties)
Ambassadeurs : Chigaev, Maksim (3x), Anay Barche (2x), Stoltz, Gösta (2x), Pirc, Vasja (2x), Koo, Oliver T (2x), Luers, Lavas (2x), Michel, Clement Paul (1x), Negyesy, Gyorgy (1x)
8.Qc2 — 13.9% (16 parties)
Ambassadeurs : Johansson, Ingi Randver (1x), Bolbochan, Julio (1x), Eliskases, Erich (1x), Cruz, Walter (1x), Kramer, Haije (1x), Thibaut, Georges (1x), Rapaka Samuel Paul (1x), O'Kelly, Albéric de Galway (1x)
8.Nc3 — 10.4% (12 parties)
Ambassadeurs : Bolbochan, Julio (1x), Cruz, Walter (1x), Stumpers, Louis (1x), Donner, Jan-Hein (1x), Oakley, Peter James (1x), Rhodes, H. (1x), Helis, Tadeusz (1x), Kozak, Pawel (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8.Qa4 8.Na3 8.Qc2 8.Nc3
<1800 6 33% 17% 33%
1800-2200 45 47% 18% 18% 9%
2200-2600 40 38% 40% 8% 5%
2600+ 6 17% 67% 17%
Évolution par décennie (% des parties)
Décennie N parties 8.Qa4 8.Na3 8.Qc2 8.Nc3
1950s 13 8% 38% 31% 23%
1960s 1 100%
1970s 2 100%
1980s 2 50% 50%
1990s 5 60% 20%
2000s 20 45% 15% 20% 10%
2010s 37 35% 35% 8% 11%
2020s 35 40% 34% 11% 9%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8.Qa4 35% 40% ▲ +4.9%
8.Na3 35% 34% ▼ -0.8%
8.Qc2 8% 11% ▲ +3.3%
8.Nc3 11% 9% ▼ -2.2%
Joueurs célèbres
Champions du monde dans cette position
Kramnik, Vladimir — 1 partie
Gukesh D — 1 partie
Parties historiques
8.Qa4 — 38.3% (44 parties)
1954 — Cherepkov, Alexander V vs Fridstein, German — 1-0 — Riga LAT
1962 — Bak, Istvan vs Liptay, Laszlo Dr. — 1-0 — Budapest HUN
1971 — Quinteros, Miguel A. vs Savon, Vladimir — 1/2-1/2 — Mar del Plata ARG
1977 — Fronczek, Heinrich vs Witkowski, Stefan — 1-0 — Piotrkow Trybunalski
1985 — Diego Alejandro Castro Ponce vs Acebal Muniz, Antonio — 1/2-1/2 — Preferente
8.Na3 — 29.6% (34 parties)
1950 — Pirc, Vasja vs Michel, Clement Paul — 1/2-1/2 — Mar del Plata ARG
1950 — Pirc, Vasja vs Pilnik, Herman — 1/2-1/2 — Mar del Plata ARG
1952 — Anay Barche vs Stoltz, Gösta — 1/2-1/2 — Helsinki olm
1952 — Negyesy, Gyorgy vs Kluger, Gyula — 1-0 — Hungary ch
1952 — Anay Barche vs Stoltz, Gösta — 1-0 — Stockholm izt
8.Qc2 — 13.9% (16 parties)
1950 — Johansson, Ingi Randver vs Bolbochan, Julio — 0-1 — Dubrovnik olm
1950 — Kramer, Haije vs Thibaut, Georges — 0-1 — Dubrovnik olm
1950 — Rapaka Samuel Paul vs O'Kelly, Albéric de Galway — 1-0 — Amsterdam NED
1952 — Eliskases, Erich vs Cruz, Walter — 1-0 — Rio de Janeiro BRA
1989 — Lescano, Benicio vs Guijarro, Hugo — 1-0 — ESP
8.Nc3 — 10.4% (12 parties)
1950 — Stumpers, Louis vs Donner, Jan-Hein — 0-1 — Amsterdam ch-NED
1952 — Bolbochan, Julio vs Cruz, Walter — 1-0 — Rio de Janeiro BRA
1952 — Oakley, Peter James vs Rhodes, H. — 0-1 — England
2002 — Helis, Tadeusz vs Kozak, Pawel — 1-0 — Karvina
2004 — Vucenovic, Dragomir vs Flockhart, Hugh — 1/2-1/2 — Port Erin IOM