C67k - 9.Nd4 - Ruy Lopez: Berlin Defense, Winawer Attack (1903)

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C67k — Berlin Defense, Winawer Attack (1903)
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.Nd4
Les coups candidats
9…O-O — 96.3% (104 parties)
Ambassadeurs : Klovans, Janis (3x), Knezevic, Milorad (3x), Gheorghiu, Florin (2x), Filip, Miroslav (2x), Barczay, Laszlo (2x), Myhre, Erling (2x), Browne, Walter Shawn (2x), De Firmian, Nick (2x)
9…Nc5 — 2.8% (3 parties)
Ambassadeurs : Brooks, Michael (1x), Lukowiak, Wiktoria (1x), Rios Fo., Hilton Carlos da Silva (1x), Chaves, Jorge Antonio Torres (1x), Lindfeldt, Jan Magnus (1x), Pedersen, Karl (1x)
9…Bc5 — 0.9% (1 parties)
Ambassadeurs : Carlson, Curtis (1x), Davis Tatuli (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…O-O 9…Nc5 9…Bc5
<1800 6 100% — —
1800-2200 15 93% 7% —
2200-2600 58 97% 3% —
2600+ 5 100% — —
Évolution par décennie (% des parties)
Décennie N parties 9…O-O 9…Nc5 9…Bc5
1950s 5 100% — —
1960s 11 100% — —
1970s 16 94% — 6%
1980s 14 93% 7% —
1990s 22 95% 5% —
2000s 22 95% 5% —
2010s 13 100% — —
2020s 5 100% — —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…O-O 100% 100% +0.0%
9…Nc5 0% 0% +0.0%
9…Bc5 0% 0% +0.0%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 1 partie
Parties historiques
9…O-O — 96.3% (104 parties)
1950 — O'Kelly, Albéric de Galway vs Myhre, Erling — 1-0 — Dubrovnik olm
1950 — Unzicker, Ferdinand, Dr. vs Myhre, Erling — 1-0 — Dubrovnik olm
1951 — Eikrem, Arnold vs Asker, Sven — 1-0 — Birmingham/Coventry
1955 — Szymanski, Andrzej vs Makarczyk, Kazimierz — 1/2-1/2 — Wroclaw POL
1957 — De Lange, Daan vs Maedler, Manfred — 1/2-1/2 — ?
9…Nc5 — 2.8% (3 parties)
1989 — Brooks, Michael vs Lukowiak, Wiktoria — 1-0 — Chicago, IL USA
1996 — Rios Fo., Hilton Carlos da Silva vs Chaves, Jorge Antonio Torres — 1-0 — Rio de Janeiro BRA
2006 — Lindfeldt, Jan Magnus vs Pedersen, Karl — 1/2-1/2 — Denmark
9…Bc5 — 0.9% (1 parties)
1977 — Carlson, Curtis vs Davis Tatuli — 1-0 — cr.