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C67l — Open Berlin, Main Line 9.Nc3 (Rio de Janerio) (1900)
1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Be7 6.Qe2 Nd6 7.Bxc6 bxc6 8.dxe5 Nb7 9.Nc3
Les coups candidats
9…O-O — 91.1% (410 parties)
Ambassadeurs : A Aman (11x), Knezevic, Milorad (10x), Kubasky, Alojz (6x), Sharif, Mehrshad (5x), Jansa, Vlastimil (4x), Kevicky, Martin Ing (4x), Carrettoni, Angelo (4x), Pachman, Ludek (3x)
9…Nc5 — 8.7% (39 parties)
Ambassadeurs : Valkesalmi, Kimmo (3x), Knezevic, Milorad (3x), Gawne, Martin (3x), Deskin, Gary (2x), Majstorovic, Ljubomir (1x), Kozomara, Vlado (1x), Langeweg, Kick (1x), Boll, Peter (1x)
9…d6 — 0.2% (1 parties)
Ambassadeurs : Onder, Evren (1x), Bedard, Mark (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…O-O 9…Nc5 9…d6
<1800 20 85% 15%
1800-2200 114 87% 13%
2200-2600 156 89% 11%
2600+ 15 93% 7%
Évolution par décennie (% des parties)
Décennie N parties 9…O-O 9…Nc5 9…d6
1950s 7 86% 14%
1960s 27 100%
1970s 33 91% 9%
1980s 78 97% 3%
1990s 88 85% 14% 1%
2000s 85 92% 8%
2010s 119 89% 11%
2020s 13 92% 8%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…O-O 89% 92% ▲ +3.2%
9…Nc5 11% 8% ▼ -3.2%
9…d6 0% 0% +0.0%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 2 parties
Anand, Viswanathan — 2 parties
Karpov, Anatoly — 1 partie
Parties historiques
9…O-O — 91.1% (410 parties)
1952 — Szily, Jozsef vs Lundin, Erik — 1/2-1/2 — Helsinki olm
1956 — Keres, Paul vs Unzicker, Ferdinand, Dr. — 1-0 — Hamburg GER
1958 — Eriksson, Sixten vs A Aman — 0-1 — ?
1958 — Nordstrom, Eric vs A Aman — 1/2-1/2 — ?
1958 — Werle, Allan vs A Aman — 0-1 — corr
9…Nc5 — 8.7% (39 parties)
1951 — Majstorovic, Ljubomir vs Kozomara, Vlado — 1/2-1/2 — Ljubljana
1975 — Bednarski, Jacek vs Hintikka, Eero — 1-0 — Stockholm SWE
1977 — Langeweg, Kick vs Boll, Peter — 1-0 — Eindhoven NED
1978 — Emma, Jaime vs Casas Perea, Fernando — 1/2-1/2 — ARG-ch Buenos Aires ARG
1980 — Marjanovic, Slavoljub vs Hjartarson, Johann — 1-0 — La Valetta MLT
9…d6 — 0.2% (1 parties)
1999 — Onder, Evren vs Bedard, Mark — 1-0 — CN.1999.0.00108