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D85h — Exchange
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Be3 c5 8.Qd2 Qa5 9.Rc1
Les coups candidats
9…cxd4 — 48.3% (682 parties)
Ambassadeurs : Bazant, Petr (6x), Ftacnik, Lubomir (6x), Kelecevic, Nedeljko (6x), Kramnik, Vladimir (5x), Ragger, Markus (5x), Koczo, Kristof (5x), Areshchenko, Alexander (5x), Grammatica, Andrea (5x)
9…O-O — 44.9% (634 parties)
Ambassadeurs : Barbosa, Evandro Amorim (6x), Abdalla, Luiz Guilherme Aurelli (5x), Koczo, Kristof (5x), Caetano, Hugo Zanotti Mendonca (5x), Susla, Vitaliy (4x), Gabrielian, Artur (4x), Krstulovic, Alex (4x), Tunik, Gennady (3x)
9…Nc6 — 2.5% (36 parties)
Ambassadeurs : Nagel, Raimo Dietrich (1x), Petersen, Kari (1x), Kurcsik, Zoltan (1x), Kopkan, Pavel (1x), Dumitrache, Dragos-Nicolae (1x), Kondou, Eva (1x), Karttunen, Mika (1x), Anttila, Perttu (1x)
9…Nd7 — 2.1% (29 parties)
Ambassadeurs : Nepomniachtchi, Ian (5x), Shishkin, Vadim (2x), Nakamura, Hikaru (2x), Dvoirys, Semen I. (2x), Sedlak, Nikola (2x), Cunningham, Patrick D (1x), Roos, Daniel (1x), Gutop, Yuri V (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…cxd4 9…O-O 9…Nc6 9…Nd7
<1800 24 42% 38% 4% 12%
1800-2200 416 47% 47% 5% 1%
2200-2600 801 48% 45% 1% 2%
2600+ 91 55% 40% 5%
Évolution par décennie (% des parties)
Décennie N parties 9…cxd4 9…O-O 9…Nc6 9…Nd7
1930s 1 100%
1970s 1 100%
1980s 33 52% 36% 3%
1990s 178 56% 35% 2% 1%
2000s 241 45% 45% 6% 1%
2010s 735 47% 46% 2% 3%
2020s 224 48% 50% 1% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…cxd4 47% 48% +0.3%
9…O-O 46% 50% ▲ +3.4%
9…Nc6 2% 1% ▼ -1.4%
9…Nd7 3% 2% ▼ -0.8%
Joueurs célèbres
Champions du monde dans cette position
Kramnik, Vladimir — 10 parties
Carlsen, Magnus — 3 parties
Ding, Liren — 1 partie
Karpov, Anatoly — 1 partie
Ju, Wenjun — 1 partie
Parties historiques
9…cxd4 — 48.3% (682 parties)
1977 — Vaisman, Volodia vs Adorjan, Andras — 1/2-1/2 — Moscow RUS
1982 — Csonkics, Tunde vs Khadilkar, Vasanti — 1/2-1/2 — Lucerne SUI
1982 — Hjartarson, Johann vs Short, Nigel D — 0-1 — Copenhagen DEN
1982 — Cebalo, Miso vs Plachetka, Jan — 1/2-1/2 — Vinkovci CRO
1982 — Cebalo, Miso vs Plachetka, Jan — 1/2-1/2 — Vinkovci CRO
9…O-O — 44.9% (634 parties)
1937 — Atkins, Henry Ernest vs Blow, Ronald — 1-0 — Blackpool, Imperial Hotel
1980 — Knaak, Rainer vs Cseshkovsky, Vitaly — 0-1 — Sochi RUS
1982 — From, Sigfred vs Pedersen, Borge — 1/2-1/2 — DEN-ch corr
1983 — Pribyl, Josef vs Gustafsson, Fredrik 1980 — 1-0 — Eksjo SWE
1983 — Borik, Otto vs Doncevic, Dario — 1/2-1/2 — Duitsland tt
9…Nc6 — 2.5% (36 parties)
1992 — Dumitrache, Dragos-Nicolae vs Kondou, Eva — 1-0 — Athens GRE
1994 — Nagel, Raimo Dietrich vs Petersen, Kari — 1-0 — Kettig op-RL
1994 — Kurcsik, Zoltan vs Kopkan, Pavel — 0-1 — Litomysl CZE
2000 — Jellinghaus, Lars vs Kaufeld, Juergen — 1/2-1/2 — Recklinghausen GER
2000 — Singer, Imad vs Bejaoui, Anis — 0-1 — Arab-ch U20 Beirut
9…Nd7 — 2.1% (29 parties)
1982 — Cunningham, Patrick D vs Roos, Daniel — 1/2-1/2 — Luzern olm
1992 — Gutop, Yuri V vs Yuferov, Sergey N — 1/2-1/2 — Moscow RUS
1992 — Sobek, Jaroslav vs Gross, Stefan — 1/2-1/2 — Karvina op
2002 — Nefediev, Alexander vs Shishkin, Vadim — 1-0 — St Petersburg RUS
2004 — Leon Fernandez, Mario vs Frances Cuscullola, Oriol — 0-1 — Mondariz ESP