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A25w — Closed
1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Rb1
Eval: [+0.22]
Les coups candidats
Ambassadeurs : Foisor, Ovidiu-Doru (10x), Giardelli, Sergio C. (8x), Azmaiparashvili, Zurab (7x), Sunye Neto, Jaime (7x), Piket, Jeroen (7x), Lobron, Eric (6x), Lerner, Konstantin Z (6x), Drasko, Milan (6x)
5…d6 — 23.9% (500 parties)
Ambassadeurs : Liberzon, Vladimir M (4x), Urday, Henry (4x), Duncan, Chris R (4x), Hentunen, Asko (4x), Robatsch, Karl (3x), Paehtz, Thomas (3x), Hartoch, Robert G (3x), Bertok, Mario Jr. (3x)
5…f5 — 11.7% (245 parties)
Ambassadeurs : Taimanov, Mark (4x), Suba, Mihai (3x), Dairy Prasad Upadhyay (3x), Sher, Miron (3x), Liberzon, Vladimir M (2x), Korchnoi, Viktor (2x), Geller, Uzi (2x), Browne, Winifred (2x)
5…Nf6 — 8.0% (168 parties)
Ambassadeurs : Westerinen, Heikki M.J. (6x), Khomeriki, Nino (5x), Sariego Figueredo, Wilfredo (4x), Giorgadze, Giorgi Gel (4x), Tiviakov, Sergei (4x), Godena, Michele (3x), Paoli, Enrico (2x), Romanishin, Oleg M (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5…a5 5…d6 5…f5 5…Nf6
<1800 10 60% 10% 10% 20%
1800-2200 400 44% 30% 9% 7%
2200-2600 1263 51% 23% 13% 8%
2600+ 76 62% 11% 14% 13%
Évolution par décennie (% des parties)
Décennie N parties 5…a5 5…d6 5…f5 5…Nf6
1950s 7 43% 29% 14%
1960s 76 32% 28% 11% 9%
1970s 123 37% 33% 15% 8%
1980s 259 49% 23% 11% 9%
1990s 591 51% 22% 11% 10%
2000s 511 51% 22% 12% 9%
2010s 431 49% 27% 12% 5%
2020s 92 57% 21% 12% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5…a5 49% 57% ▲ +7.1%
5…d6 27% 21% ▼ -6.0%
5…f5 12% 12% -0.1%
5…Nf6 5% 2% ▼ -3.2%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 4 parties
Smyslov, Vladimir — 3 parties
Kasparov, Garry — 3 parties
Tal, Mikhail — 2 parties
Anand, Viswanathan — 2 parties
Karpov, Aleksandr — 1 partie
Ding, Liren — 1 partie
Parties historiques
5…a5 — 49.2% (1029 parties)
1953 — Szabo, Laszlo vs Barda, George-Alexandru — 1-0 — Bucharest ROU
1953 — Szabo, Ladislav vs Barda, Olaf — 1-0 — Bucharest ROU
1959 — Gromek, Jozef vs Blatny, Frantisek — 1-0 — Marianske Lazne
1962 — Bertok, Mario Jr. vs Bukic, Enver — 1/2-1/2 — Vrnjacka Banja SRB
1963 — Peterson, Andrejs vs Sakharov, Yuri N — 0-1 — Kiev UKR
5…d6 — 23.9% (500 parties)
1954 — Tapaszto Binet, Laszlo vs Szabo, Ladislav — 0-1 — Hungary ch
1956 — Ilivitsky, Georgy A vs Pachman, Ludek — 1/2-1/2 — Prague CZE
1960 — Wexler, Francisco vs Emma, Jaime — 1/2-1/2 — Bariloche
1961 — Haag, Ervin vs Korchnoi, Viktor — 1/2-1/2 — Budapest HUN
1962 — Alster, Ladislav vs Opocensky, Karel — 1/2-1/2 — Jablonec
5…f5 — 11.7% (245 parties)
1956 — Sajtar, Jaroslav vs Blatny, Frantisek — 1/2-1/2 — Podebrady CZE
1965 — Bertok, Mario Jr. vs Barczay, Laszlo — 1-0 — Torneo di Capodanno
1968 — Zakharov, Yan vs Liberzon, Vladimir M — 0-1 — Alma Ata ch-URS
1968 — Sakharov, Yuri N vs Savon, Vladimir A — 1/2-1/2 — Kiev UKR
1969 — Zinser, Sylvain vs Siaperas, Triantafyllos — 1/2-1/2 — Zagreb CRO
5…Nf6 — 8.0% (168 parties)
1962 — Szabo, Laszlo vs Paoli, Enrico — 1-0 — Kecskemet HUN
1963 — Hort, Vlastimil vs Novak, Zbynek — 1-0 — Prague CZE
1964 — Bertok, Mario Jr. vs Paoli, Enrico — 1-0 — Reggio Emilia ITA
1965 — Damjanovic, Marko vs Udovcic, Mijo — 1-0 — Zagreb CRO
1966 — Szilagyi, Gyorgy Laszlo vs Haag, Ervin — 1/2-1/2 — HUN