C60o - 3…Nge7 - Cozio Defense (1904)

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C60o — Cozio Defense (1904)
1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7
Les coups candidats
Ambassadeurs : Csapo, Zoltan (31x), Elter, Sophia (19x), Babarykin, Viktor Aleksandrovi (18x), Klaric, Zlatko (13x), De Greif, Boris (11x), García Rodríguez, Ildefonso (11x), Chan, Yi Ren Daniel (10x), Thorfinnsson, Bjorn (10x)
Ambassadeurs : Pechac, Jergus (21x), Brinovec, David (14x), Thorfinnsson, Bjorn (12x), Mona, Khaled (11x), Walter, Ema (9x), Sadhwani, Raunak (9x), Arkhipov, Sergey (8x), Beukema, Jasper (8x)
Ambassadeurs : Csapo, Zoltan (20x), Stefanova, Antoaneta (9x), Lazic, Miroljub (9x), Elter, Sophia (8x), O'Donnell, Tom (5x), Nitsche, Dirk, Dr. (5x), Vukovic, Ivo (5x), De Greif, Boris (4x)
4.d4 — 8.6% (834 parties)
Ambassadeurs : Elter, Sophia (5x), Pechac, Jergus (4x), Hessmer, Dietrich (3x), De Greif, Boris (3x), Oates, Michael (3x), Brinovec, David (3x), Rakshitta Ravi (3x), Walter, Ema (3x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4.O-O 4.Nc3 4.c3 4.d4
<1800 1009 52% 13% 20% 9%
1800-2200 3570 51% 18% 20% 9%
2200-2600 3180 42% 26% 23% 8%
2600+ 114 32% 50% 12% 3%
Évolution par décennie (% des parties)
Décennie N parties 4.O-O 4.Nc3 4.c3 4.d4
1950s 17 47% 12% 29% 6%
1960s 50 42% 6% 24% 22%
1970s 209 49% 7% 27% 16%
1980s 274 58% 12% 19% 8%
1990s 1312 51% 14% 20% 10%
2000s 2297 53% 12% 20% 10%
2010s 3965 47% 23% 20% 7%
2020s 1600 39% 33% 18% 8%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4.O-O 47% 39% ▼ -8.7%
4.Nc3 23% 33% ▲ +9.9%
4.c3 20% 18% ▼ -2.4%
4.d4 7% 8% ▲ +1.5%
Joueurs célèbres
Champions du monde dans cette position
Anand, Viswanathan — 4 parties
Hou, Yifan — 4 parties
Carlsen, Magnus — 3 parties
Tal, Mikhail — 2 parties
Karpov, Anatoly — 2 parties
Lasker, Emanuel — 1 partie
Kramnik, Vladimir — 1 partie
Parties historiques
4.O-O — 48.0% (4669 parties)
1952 — Grivainis, Konstantin vs Dzelme, R — 1-0 — Latvian Exiles 5254
1955 — Betak Miroslav vs Nan Shwe Yin Thun — 1-0 — Prague CZE
1955 — Muehl, Malte Luis vs Nan Shwe Yin Thun — 0-1 — Prague CZE
1955 — Sunne, Borge vs Martins, Poul — 0-1 — Copenhagen DEN
1956 — Pilnik, Herman vs Kremer, Paul — 1-0 — Moscow RUS
4.Nc3 — 20.1% (1952 parties)
1956 — Bernstein, Boris vs Doerner, Elias — 1-0 — Ostende
1958 — Shishov, Mikhail vs Bakulin, Nikolac I — 0-1 — Moscow RUS
1964 — Kupper, Josef vs Martinez, Fernando — 1-0 — Tel Aviv olm
1968 — Kostjoerin, Anatole vs Rojas Hidalgo, Jose Antonio — 1-0 — Lugano olm
1969 — Barczay, Laszlo vs Sydor, Andrzej — 1-0 — Lublin POL
4.c3 — 19.9% (1936 parties)
1956 — Konig, Imre vs Abigail Wanjiru Green — 1/2-1/2 — San Quentin, CA
1957 — Jursevskis, Walter vs Ackermann, Gustav — 1-0 — Vancouver BC CAN
1957 — OBrien, Erik Michael vs Brent, Eric — 1-0 — Sonoma
1958 — Kaikamdzozov, Jivko vs Filchev, Rusko — 0-1 — Sofia BUL
1958 — Mack, Arthur vs Diebold, Robert — 0-1 — ?
4.d4 — 8.6% (834 parties)
1959 — Horberg, Bengt-Eric vs Fridh, Anton — 1-0 — Sweden
1960 — Collins, Richard vs Wheatley, Len — 1/2-1/2 — Hayes
1962 — Shamkovich, Leonid vs Fridh, Anton — 1-0 — corr USSR-Sweden
1964 — Kostro, Jerzy vs Alexander Tadala — 1-0 — Polanica Zdroj POL
1965 — Jensen, Kristian Rohde vs Andreasen, Mogens — 1-0 — Randers Club t