A64e - 12…Rb8 - Fianchetto (1955)

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A64e — Fianchetto (1955)
1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.g3 Bg7 8.Bg2 O-O 9.O-O Nbd7 10.Nd2 a6 11.a4 Re8 12.h3 Rb8
Les coups candidats
Ambassadeurs : Allawi Rawlings (13x), Mikhalevski, Victor (13x), Sos Andreu, Eric (9x), Andrews, Graham (8x), Valsecchi, Alessio (8x), Quinteros, Miguel A. (7x), Gheorghiu, Florin (7x), Johnston, Allan (7x)
13.a5 — 11.1% (221 parties)
Ambassadeurs : Ravikumar, Vaidyanathan (2x), Nadyrkhanov, Sergey (2x), Andrianov, Nikolai (2x), Ree, Hans (2x), Gereben, Erno (1x), Kluger, Gyula (1x), Skuja, Roberts (1x), Tal, Mikhail (1x)
13.Rb1 — 0.5% (10 parties)
Ambassadeurs : Lalic, Bogdan (1x), Kovacevic, Slobodan (1x), Johannesson, Larus (1x), Tisdall, Jonathan D (1x), Pantsulaia, Levan (1x), Jobava, Baadur (1x), Farago, Sandor (1x), Cooke, Eric (1x)
13.Nde4 — 0.1% (2 parties)
Ambassadeurs : Zelaszkowski, R. (1x), Wydrowski, Leszek (1x), Nyvlt, Otto (1x), Hradecky, Ivo (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 13.Nc4 13.a5 13.Rb1 13.Nde4
<1800 44 84% 16% — —
1800-2200 624 87% 13% — 0%
2200-2600 1150 89% 10% 1% —
2600+ 33 88% 9% 3% —
Évolution par décennie (% des parties)
Décennie N parties 13.Nc4 13.a5 13.Rb1 13.Nde4
1950s 7 71% 29% — —
1960s 22 100% — — —
1970s 59 93% 7% — —
1980s 170 87% 12% 1% 1%
1990s 129 88% 12% 1% —
2000s 354 84% 14% 1% 0%
2010s 1104 91% 9% 0% —
2020s 148 76% 23% 1% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
13.Nc4 91% 76% ▼ -14.5%
13.a5 9% 23% ▲ +14.4%
13.Rb1 0% 1% +0.4%
13.Nde4 0% 0% +0.0%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 4 parties
Kasparov, Garry — 1 partie
Ju, Wenjun — 1 partie
Anand, Viswanathan — 1 partie
Parties historiques
13.Nc4 — 88.1% (1756 parties)
1955 — Chestnov, Vitaliy A. vs Brazilsky, Y. — 1-0 — Odessa UKR
1955 — Donner, Jan-Hein vs Esposito, Alfredo — 1-0 — Buenos Aires ARG
1956 — Szabo, Laszlo vs Unzicker, Ferdinand, Dr. — 1-0 — Moskou olm
1956 — Buslaev, Aleksander vs Tal, Mikhail — 1-0 — Tbilisi GEO
1956 — Sanguinetti, Raul vs Wexler, Bernardo — 1-0 — Mar del Plata ARG
13.a5 — 11.1% (221 parties)
1955 — Gereben, Erno vs Kluger, Gyula — 0-1 — Budapest HUN
1958 — Skuja, Roberts vs Tal, Mikhail — 0-1 — Latvia
1972 — Ivkov, Borislav vs Ree, Hans — 1/2-1/2 — Wijk aan Zee NED
1975 — Czerniak, Magdalena vs Sigurjonsson, Gudmundur — 1-0 — Vraca zt
1978 — Ravikumar, Vaidyanathan vs Tiller, Bjorn — 1/2-1/2 — Graz AUT
13.Rb1 — 0.5% (10 parties)
1984 — Lalic, Bogdan vs Kovacevic, Slobodan — 1/2-1/2 — Ossiach
1995 — Johannesson, Larus vs Tisdall, Jonathan D — 1/2-1/2 — Gausdal NOR
2000 — Farago, Sandor vs Cooke, Eric — 1-0 — Budapest HUN
2001 — Pantsulaia, Levan vs Jobava, Baadur — 0-1 — Tbilisi GEO
2007 — Lubczynski, Rafal vs Maciejewski, Maciej — 0-1 — Polanica Zdroj POL
13.Nde4 — 0.1% (2 parties)
1986 — Zelaszkowski, R. vs Wydrowski, Leszek — 0-1 — corr Poland
2005 — Nyvlt, Otto vs Hradecky, Ivo — 1/2-1/2 — Nachod