B23y - 6.O-O - Closed, Grand Prix (1964)

B23y — Closed, Grand Prix (1964)
1.e4 c5 2.Nc3 Nc6 3.f4 g6 4.Nf3 Bg7 5.Bb5 Nd4 6.O-O
Les coups candidats
6…Nxb5 — 53.8% (3159 parties)
Ambassadeurs : Koronowski, Heinz-Juergen (26x), Broadway, Dennis (21x), cstarx (16x), Szell, Lajos (14x), jmsfe (14x), Lappage, Jonathan C T (13x), littledevil (13x), anstk (13x)
6…a6 — 32.7% (1917 parties)
Ambassadeurs : Fritsche, Frank (25x), Oren, Itamar (15x), Renard, Stéphane (14x), Koronowski, Heinz-Juergen (13x), Zeidler, Sven P. (11x), Chaves, Joara (10x), Broadway, Dennis (10x), Dellenbach, Jean-Paul (10x)
6…e6 — 11.4% (669 parties)
Ambassadeurs : Szell, Lajos (6x), Van Liempt, Michael (4x), Plaskett, H James (3x), Charmeteau, Sven (3x), Jackson, Oliver A (3x), Lyell, Mark (3x), Turzo, Attila (3x), Bisguier, Arthur B (2x)
6…Nh6 — 1.5% (89 parties)
Ambassadeurs : Franklin, Samuel G A (6x), Snape, Ian L (5x), Greig, Steve (3x), Wojtaszek, Radoslaw (2x), Heberla, Bartlomiej (2x), Bugalski, Michal (2x), Cherniaev, Alexander (2x), Zinn, Lothar (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6…Nxb5 6…a6 6…e6 6…Nh6
<1800 457 51% 35% 11% 1%
1800-2200 3184 51% 35% 12% 2%
2200-2600 1614 53% 32% 12% 2%
2600+ 11 45% 45% 9% —
Évolution par décennie (% des parties)
Décennie N parties 6…Nxb5 6…a6 6…e6 6…Nh6
1950s 1 100% — — —
1960s 11 45% 27% 9% 18%
1970s 5 60% 40% — —
1980s 86 49% 36% 15% —
1990s 350 55% 25% 19% 1%
2000s 1702 61% 24% 13% 1%
2010s 3046 53% 35% 10% 1%
2020s 668 39% 48% 10% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6…Nxb5 53% 39% ▼ -14.6%
6…a6 35% 48% ▲ +13.5%
6…e6 10% 10% -0.5%
6…Nh6 1% 3% ▲ +1.8%
Joueurs célèbres
Champions du monde dans cette position
Hou, Yifan — 2 parties
Anand, Viswanathan — 1 partie
Gukesh D — 1 partie
Parties historiques
6…Nxb5 — 53.8% (3159 parties)
1959 — Korsakov, Boris vs Stein, Leonid — 1/2-1/2 — Kiev UKR
1960 — Partyka, Kazimierz vs Schmidt, Waldemar — 0-1 — Wroclaw Tch-POL
1965 — Jimeno, Angel vs Saenz Lopez, Jose Maria — 1-0 — Castilla
1966 — Piscitelli, Antoine vs Kavalek, Lubomir — 0-1 — Havana CUB
1966 — Carmona Rosales, Jose Luis vs Panno, Oscar — 1-0 — Rio Hondo zt
6…a6 — 32.7% (1917 parties)
1964 — Rautenstrauch, Hans Hubert vs Adamski, Jan — 1/2-1/2 — Krakow POL
1966 — Goncharoff, Nik vs Martinowsky, Dr Eugene — 1/2-1/2 — ?
1968 — Zinn, Lothar vs Estrin, Yakov — 1/2-1/2 — cr
1972 — Zinn, Lothar vs Izvozchikov, Alexander — 0-1 — Tbilisi GEO
1979 — Sulman, Robert vs Rind, Bruce — 1/2-1/2 — Marshall Int
6…e6 — 11.4% (669 parties)
1965 — Zinn, Lothar vs Ghitescu, Theodor — 1/2-1/2 — Zinnowitz GER
1980 — Bisguier, Arthur B vs Benko, Pal — 1/2-1/2 — Greenville ch-USA
1980 — Bisguier, Arthur B vs Benko, Francisco — 1-0 — USA
1984 — Short, Nigel D vs Giorgadze, Tamaz — 1/2-1/2 — Lvov UKR
1985 — Pavlovic, Milos vs Karolyi, Tibor — 0-1 — Kopenhagen open
6…Nh6 — 1.5% (89 parties)
1964 — Zinn, Lothar vs Pelts, Roman — 1-0 — Krakow POL
1965 — Malich, Burkhard, Dr. vs Pietzsch, Wolfgang — 0-1 — Leipzig GER
1993 — De Anna, Marcos vs Poch, Cesar G. — 0-1 — Vicente Lopez
1995 — Maier, Alexander vs Richter, Michael — 0-1 — Budapest HUN
2000 — Keith, Daniel vs Biasutto, Stefano — 1/2-1/2 — ICCF Email