C70j - 4…Nge7 - Ruy Lopez: Morphy Defense, Cozio Defense (1911)

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C70j — Ruy Lopez: Morphy Defense, Cozio Defense (1911)
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nge7
Les coups candidats
5.c3 — 40.0% (1442 parties)
Ambassadeurs : Avellan, Gerardo (18x), Celan, Melissa (13x), Kivimaki, Jaakko (11x), Vavulin, Maxim (11x), Blazeka, Matej (10x), Jirka, Jiri (9x), Plutarco, Fosca (9x), Avellán, Gerardo (9x)
5.O-O — 38.0% (1369 parties)
Ambassadeurs : Avellan, Gerardo (21x), Avellán, Gerardo (14x), Kivimaki, Jaakko (13x), Rajkovic, Mladen (8x), Rantanen, Yrjo A. (7x), Raineri, Angelo Valerio (7x), Nestorovic, Nikola (7x), Varga, Zoltan (6x)
5.Nc3 — 12.2% (440 parties)
Ambassadeurs : Kivimaki, Jaakko (5x), Mozes, Ervin (5x), Blazeka, Matej (5x), Nestorovic, Nikola (5x), Grover Shivaksh (4x), Stefanova, Antoaneta (4x), Vagman, Roy (4x), Czupor, Attila (4x)
5.Bb3 — 4.0% (145 parties)
Ambassadeurs : Blazeka, Matej (7x), Blagojevic, Dragisa (3x), Kulaots, Kaido (3x), Rasik, Vitezslav (3x), De Wit, Michel (2x), Salgado Lopez, Ivan (2x), Rogulj, Branko (2x), Georgiev, Vladimir (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5.c3 5.O-O 5.Nc3 5.Bb3
<1800 126 40% 44% 12% —
1800-2200 1101 37% 44% 10% 3%
2200-2600 2147 42% 35% 14% 5%
2600+ 114 41% 36% 11% 6%
Évolution par décennie (% des parties)
Décennie N parties 5.c3 5.O-O 5.Nc3 5.Bb3
1950s 4 — 50% — 25%
1960s 2 — 50% 50% —
1970s 12 33% 50% — —
1980s 30 47% 30% 13% —
1990s 103 36% 45% 11% 1%
2000s 163 32% 51% 7% 2%
2010s 2206 39% 40% 10% 5%
2020s 1082 43% 32% 18% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5.c3 39% 43% ▲ +4.0%
5.O-O 40% 32% ▼ -8.0%
5.Nc3 10% 18% ▲ +8.3%
5.Bb3 5% 2% ▼ -3.0%
Joueurs célèbres
Champions du monde dans cette position
Gukesh D — 5 parties
Hou, Yifan — 3 parties
Anand, Viswanathan — 2 parties
Ju, Wenjun — 1 partie
Parties historiques
5.c3 — 40.0% (1442 parties)
1974 — Sokolov, Vladimir vs Ivanovic, Bozidar — 1/2-1/2 — Porec CRO
1977 — Fiedler, Wolfgang vs Rantanen, Yrjo A. — 1-0 — Stockholm SWE
1977 — Doncevic, Dario vs Huetz, Gerd — 1/2-1/2 — Wallrabenstein
1978 — Ornstein, Axel vs Rantanen, Aapo — 1-0 — Oslo NOR
1982 — Donchev, Dimitar I. vs Ciocaltea, Victor — 1/2-1/2 — Luzern olm
5.O-O — 38.0% (1369 parties)
1951 — Nilsson, Zandor vs Kinnmark, Ove — 1-0 — Sweden
1955 — Dueckstein, Andreas vs Anay Barche — 0-1 — Zagreb CRO
1966 — Gufeld, Eduard vs Marchenko, Aleksandr — 1-0 — Moscow RUS
1970 — Korzin, Vitaly A vs Goldin, Vladimir M. — 1-0 — Moscow RUS
1971 — Lamas, Pedro vs Estrada Degrandi, Walter — 0-1 — Uruguay
5.Nc3 — 12.2% (440 parties)
1966 — Michael J. Byrne vs George Krauss — 1-0 — ?
1980 — Scherbak, Matvey vs Zalys, Ignas — 1/2-1/2 — ?
1981 — Suta, Mihai vs Rasmussen, Peter — 1-0 — corr W/M
1984 — Arnason, Jon L vs Wiedenkeller, Michael — 1/2-1/2 — Esbjerg DEN
1986 — Van der Houwen, Piet J vs Van der Langenberg — 1-0 — corr NBC
5.Bb3 — 4.0% (145 parties)
1950 — Keres, Paul vs Anay Barche — 1-0 — Szczawno Zdroj
1995 — Mann, Richard vs Hall, Arthur — 1-0 — ?
2000 — Vihinen, Teemu vs Paldanius, Pekka — 0-1 — Finland
2004 — Berczes, Csaba vs Dimitrijevic, Aleksandra — 1-0 — Budapest HUN
2006 — Oechslein, Rainer vs Mueller, Willy — 1-0 — ?