B31g - 4.O-O [+0.24]

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B31g —
1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O
Eval: [+0.24]
Les coups candidats
4…Bg7 — 98.8% (25728 parties)
Ambassadeurs : Wosch, Arkadiusz (69x), Yandemirov, Valeri (41x), Jansa, Vlastimil (40x), Timman, Jan H (39x), Hasangatin, Ramil (37x), Ilyasov, Anatoly Fedorovich (37x), Vasiukov, Evgeni (36x), Bernal Varela, Nelson (34x)
4…Nf6 — 0.9% (236 parties)
Ambassadeurs : Lisenko, Alexander V (5x), Lisek, Juergen (4x), Villing, Dieter (4x), Meszaros, Andras (3x), Cigan, Stefan (3x), Mueller, Marcus (3x), Pachow, Joerg (3x), Danilova, Rada (3x)
4…Nd4 — 0.1% (31 parties)
Ambassadeurs : Durao, Miguel (2x), Sonnet, Jean-Pierre (1x), Bremond, Eric (1x), Gabriel, Wilfried (1x), Mense, Jens Uwe (1x), Grazinys, Vidmantas (1x), Pons Puig, Ramon (1x), Schichtel, Heinz (1x)
4…a6 — 0.1% (26 parties)
Ambassadeurs : Gudmundsson, Elvar (2x), Kratochvil, Milos (1x), Chrastek Bohumil (1x), Bronstein, Luis Marcos (1x), Granda Zuniga, Julio E (1x), King, Daniel J (1x), Menzel, Ralf (1x), Magem Badals, Jordi (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…Bg7 4…Nf6 4…Nd4 4…a6
<1800 491 97% 1% — 1%
1800-2200 8202 98% 1% 0% 0%
2200-2600 13518 99% 1% 0% 0%
2600+ 437 100% — — —
Évolution par décennie (% des parties)
Décennie N parties 4…Bg7 4…Nf6 4…Nd4 4…a6
1930s 2 100% — — —
1940s 12 100% — — —
1950s 65 98% — — —
1960s 248 99% 1% — —
1970s 963 97% 2% — 0%
1980s 1102 98% 2% 0% 0%
1990s 4523 98% 1% 0% 0%
2000s 7276 99% 1% 0% 0%
2010s 7470 99% 1% 0% 0%
2020s 4392 99% 1% 0% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…Bg7 99% 99% +0.3%
4…Nf6 1% 1% -0.1%
4…Nd4 0% 0% +0.0%
4…a6 0% 0% -0.1%
Joueurs célèbres
Champions du monde dans cette position
Anand, Viswanathan — 10 parties
Karpov, Anatoly — 10 parties
Kramnik, Vladimir — 10 parties
Carlsen, Magnus — 10 parties
Hou, Yifan — 10 parties
Gukesh D — 10 parties
Kasparov, Garry — 7 parties
Tal, Mikhail — 5 parties
Karpov, Aleksandr — 3 parties
Smyslov, Vladimir — 3 parties
Ju, Wenjun — 3 parties
Botvinnik, Mikhail — 2 parties
Alekhine, Alexander — 1 partie
Euwe, Max — 1 partie
Parties historiques
4…Bg7 — 98.8% (25728 parties)
1934 — Henneberger, Walter vs Alekhine, Alexander — 0-1 — Zurich SUI
1936 — Schubert, Maksym vs May, Desider — 0-1 — Podebrady CZE
1946 — Stoppel, Franz vs Abrahams Gordon, Francisco Tomas — 1/2-1/2 — Pittsburgh op
1946 — Henneberger, Walter vs Henneberger, Walter — 1/2-1/2 — ?
1946 — Tartakower, Savielly vs Boleslavsky, Isaac — 0-1 — Groningen NED
4…Nf6 — 0.9% (236 parties)
1965 — Knezevic, Milorad vs Velimirovic, Dragoljub — 0-1 — Titograd
1969 — ? vs Kushnir, Alla — 1-0 — Grozny
1970 — Steinbacher, Matthias, Dr. vs Dannehr, Juergen — 1-0 — Uelzen
1971 — Biriescu, Ioan vs Wach, Slawomir — 1/2-1/2 — Athens GRE
1971 — Pinal Borges, Nelson vs Dieks, Roy G — 1/2-1/2 — Athens GRE
4…Nd4 — 0.1% (31 parties)
1988 — Gabriel, Wilfried vs Mense, Jens Uwe — 1-0 — Gluecksburg
1989 — Sonnet, Jean-Pierre vs Bremond, Eric — 1/2-1/2 — Cannes FRA
1990 — Kuijf, Marinus vs Andersson, Ulf — 0-1 — Wijk aan Zee NED
1992 — Schichtel, Heinz vs Becker, Karl Heinz — 1-0 — Bad Woerishofen GER
1992 — Cordovil, Joao vs Durao, Miguel — 1-0 — POR-ch sf
4…a6 — 0.1% (26 parties)
1976 — Kratochvil, Milos vs Chrastek Bohumil — 1-0 — corr
1979 — King, Daniel J vs Gudmundsson, Elvar — 1-0 — Viborg DEN
1979 — Menzel, Ralf vs Gudmundsson, Elvar — 1/2-1/2 — Viborg DEN
1987 — Bronstein, Luis Marcos vs Granda Zuniga, Julio E — 1/2-1/2 — Rio Hondo
1990 — Foigel, Ivan vs Grman Branislav — 1-0 — Bratislava SVK