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B23w — Closed Grand Prix
1.e4 c5 2.Nc3 Nc6 3.f4 g6 4.Nf3 Bg7 5.Bb5 Nd4
Les coups candidats
6.O-O — 64.1% (5771 parties)
Ambassadeurs : Fritsche, Frank (46x), Koronowski, Heinz-Juergen (43x), Broadway, Dennis (34x), Szell, Lajos (31x), Dellenbach, Jean-Paul (31x), Burke, Mitchell R (26x), Chaves, Joara (25x), Oren, Itamar (23x)
6.Nxd4 — 11.6% (1046 parties)
Ambassadeurs : Ljubarskij, Juri (19x), Pessi, Emil-George (18x), Hiermann, Dietmar (18x), Gelashvili, Tamaz (10x), Weiss, Hans (9x), Haanpaa, Jorma (7x), Gicquel, Frederic (7x), Larmuseau, Michiel (7x)
6.Bd3 — 9.7% (870 parties)
Ambassadeurs : Lutton, E Josiah (18x), Kallio, Heikki (14x), Weeramantry, Sunil (12x), Soudre, Nicolas (11x), Kaugars, Agnis (10x), Wippermann, Till (10x), Noyce, Robert C (10x), Osttveit, Martin (9x)
6.a4 — 6.9% (621 parties)
Ambassadeurs : Geider, Frank (15x), Neil, David R (14x), Geller, Jakov (13x), Rivas Maceda, Juan (12x), Jackson, Oliver A (12x), Ekebjaerg, Ove (9x), Quast, Michael (9x), Larsson, Mats (9x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6.O-O 6.Nxd4 6.Bd3 6.a4
<1800 352 70% 8% 6% 2%
1800-2200 4247 67% 9% 10% 6%
2200-2600 3055 61% 13% 10% 9%
2600+ 25 52% 16% 8% 12%
Évolution par décennie (% des parties)
Décennie N parties 6.O-O 6.Nxd4 6.Bd3 6.a4
1940s 2 50%
1950s 2 50% 50%
1960s 49 22% 59% 6%
1970s 57 9% 46% 14% 11%
1980s 186 45% 27% 10% 10%
1990s 1043 33% 25% 19% 16%
2000s 2818 60% 13% 14% 7%
2010s 4087 74% 6% 6% 5%
2020s 754 77% 7% 5% 5%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6.O-O 74% 77% ▲ +3.1%
6.Nxd4 6% 7% +0.3%
6.Bd3 6% 5% ▼ -1.0%
6.a4 5% 5% +0.1%
Joueurs célèbres
Champions du monde dans cette position
Hou, Yifan — 4 parties
Anand, Viswanathan — 2 parties
Gukesh D — 2 parties
Tal, Mikhail — 1 partie
Kramnik, Vladimir — 1 partie
Botvinnik, Mikhail — 1 partie
Parties historiques
6.O-O — 64.1% (5771 parties)
1959 — Korsakov B vs Stein, Leonid — 1/2-1/2 — Kiev UKR
1960 — Plater, Kazimierz vs Schmidt, Waldemar — 0-1 — Wroclaw Tch-POL
1964 — Zinn, Lothar vs Pelts, Roman — 1-0 — Krakow POL
1964 — Rautenstrauch, Hans Hubert vs Adamski, Jan — 1/2-1/2 — Krakow POL
1965 — Zinn, Lothar vs Ghitescu, Theodor — 1/2-1/2 — Zinnowitz GER
6.Nxd4 — 11.6% (1046 parties)
1941 — Bluemich, Max vs Palme, Holger — 0-1 — Bad Elster
1956 — Dreibergs, Leonid vs Bisguier, Arthur B — 0-1 — Detroit, MI USA
1960 — Pachman, Ludek vs Najdorf, Miguel — 1/2-1/2 — Leipzig GER
1961 — Florian, Jaromir vs Jansa, Vlastimil — 0-1 — Kosice
1961 — Pietzsch, Wolfgang vs Udovcic, Mijo — 0-1 — Dortmund Dortmund GER
6.Bd3 — 9.7% (870 parties)
1970 — Sydor, Andrzej vs Zaitsev, Alexander — 1-0 — Debrecen HUN
1974 — Basman, Michael J vs Benko, Pal — 1-0 — Hastings ENG
1974 — Basman, Michael J vs Stean, Michael F — 1-0 — Hastings ENG
1975 — Basman, Michael J vs Pritchett, Craig W — 1/2-1/2 — ?
1975 — Basman, Michael J vs Adorjan, Andras — 0-1 — London ENG
6.a4 — 6.9% (621 parties)
1964 — Lazarevic, Milunka vs Volpert, Larisa — 1-0 — Leningrad RUS
1965 — Zinn, Lothar vs Kozma, Julius — 1-0 — Zinnowitz GER
1968 — Belova, Alena vs Rozlapa, Vija — 1-0 — Riga LAT
1970 — Ljubarskaja, Ludmilla vs Konopleva, Natalia — 1-0 — Beltsi ch-URS w
1973 — Weber, Robert vs Barnes, Craig — 0-1 — Bamberg