E63d - 8.b3 - Fianchetto, Panno (1955)

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E63d — Fianchetto, Panno (1955)
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nc6 7.O-O a6 8.b3
Les coups candidats
Ambassadeurs : Romanishin, Oleg M (39x), Konopka, Michal (21x), Bologan, Victor (13x), Wojtkiewicz, Aleksander (11x), Zapata, Alonso (9x), Szabolcsi, Janos (9x), Grabarczyk, Miroslaw (8x), Deforel, Jorge Eduardo (8x)
8…e5 — 5.2% (179 parties)
Ambassadeurs : Veroci, Zsuzsa (2x), Huschenbeth, Niclas (2x), Flesch, Janos (1x), Bobotsov, Milko G (1x), Schroeder, Hannes (1x), Kestler, Hans-Guenther (1x), Pfleger, Helmut, Dr. (1x), Ghitescu, Theodor (1x)
8…Bd7 — 2.7% (92 parties)
Ambassadeurs : Dembo, Yelena (3x), Romm, Meir (2x), Romanishin, Oleg M (2x), Schuh, Hubert (1x), Sarno, Spartaco (1x), Modr, Bretislav (1x), Kleinegger, Frank (1x), Kengis, Edvins (1x)
8…Bf5 — 2.6% (89 parties)
Ambassadeurs : Poldauf, Dirk (2x), Konopka, Michal (2x), Reicher, Emanoil-George (1x), Grunberg, Sergiu-Henric (1x), Bosch van Rosenthal, Edzard (1x), Bobotsov, Milko G (1x), Taimanov, Mark (1x), Borisenko, Georgy K (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8…Rb8 8…e5 8…Bd7 8…Bf5
<1800 93 78% 9% 3% 4%
1800-2200 1060 85% 7% 2% 3%
2200-2600 2007 89% 4% 3% 2%
2600+ 52 94% — 4% 2%
Évolution par décennie (% des parties)
Décennie N parties 8…Rb8 8…e5 8…Bd7 8…Bf5
1950s 29 76% — — 3%
1960s 24 79% 8% — 8%
1970s 70 89% 6% — 1%
1980s 176 90% 3% 1% 3%
1990s 494 88% 5% 2% 3%
2000s 689 86% 6% 3% 3%
2010s 1477 87% 5% 3% 2%
2020s 454 87% 6% 4% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8…Rb8 87% 87% +0.2%
8…e5 5% 6% +0.2%
8…Bd7 3% 4% +0.3%
8…Bf5 2% 3% ▲ +0.6%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 2 parties
Ju, Wenjun — 2 parties
Ding, Liren — 2 parties
Anand, Viswanathan — 1 partie
Parties historiques
8…Rb8 — 87.0% (2970 parties)
1956 — Ali, Zak vs Korchnoi, Viktor — 0-1 — Poltava
1956 — Minev, Nikolay N vs Bolbochan, Jacobo — 1/2-1/2 — Moskou olm
1956 — Minev, Nikolay N vs Bolbochan, Julio — 1/2-1/2 — Moscow olm fin-A
1956 — Byvshev, Vasily vs Spassky, Boris Vasily — 1/2-1/2 — Leningrad ch-URS
1957 — Bruemmer, Ullrich vs Hartmann, Klaus — 1/2-1/2 — Zittau
8…e5 — 5.2% (179 parties)
1964 — Flesch, Janos vs Bobotsov, Milko G — 1/2-1/2 — Pecs HUN
1965 — Schroeder, Hannes vs Kestler, Hans-Guenther — 1/2-1/2 — Bad Aibling GER
1973 — Pfleger, Helmut, Dr. vs Ghitescu, Theodor — 1/2-1/2 — Bath etc
1974 — Grimaldi, Antonio vs Moreno, Juan Luis — 1-0 — San Salvador ESA
1974 — Radashkovich, Itchak vs Jhunjhnuwala, Suresh — 1-0 — Teesside ENG
8…Bd7 — 2.7% (92 parties)
1985 — Schuh, Hubert vs Sarno, Spartaco — 1/2-1/2 — Arandjelovac
1990 — Davies, Nigel R vs Romm, Meir — 1-0 — Tel Aviv ISR
1990 — Davies, Natasha Trinity vs Romm, Meir — 1-0 — Tel Aviv ISR
1992 — Modr, Bretislav vs Kleinegger, Frank — 1/2-1/2 — Dortmund open I
1992 — Romanishin, Oleg M vs Kengis, Edvins — 1/2-1/2 — Tilburg NED
8…Bf5 — 2.6% (89 parties)
1956 — Taimanov, Mark vs Borisenko, Georgy K — 1-0 — Leningrad RUS
1965 — Bosch van Rosenthal, Edzard vs Bobotsov, Milko G — 0-1 — Beverwijk NED
1969 — Reicher, Emanoil-George vs Grunberg, Sergiu-Henric — 1/2-1/2 — Bucharest ROU
1973 — Spacek, Petr vs Fraguela Gil, Jose Miguel — 1-0 — ?
1981 — Sideifzade, Fikret vs Riabchonok, E — 1-0 — Kuibyshev