A64c - 12.h3 - Fianchetto (1963)

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A64c — Fianchetto (1963)
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
Les coups candidats
Ambassadeurs : Mikhalevski, Victor (14x), Allawi Rawlings (13x), Sos Andreu, Eric (10x), Simacek, Pavel (8x), Andrews, Graham (8x), Valsecchi, Alessio (8x), Birnboim, Nathan (8x), Quinteros, Miguel A. (7x)
12…Nh5 — 9.7% (239 parties)
Ambassadeurs : Tal, Mikhail (4x), Osnos, Viatcheslav (3x), Yuferov, Sergey N (2x), Adamski, Jan (2x), Krzisnik, Rok (2x), Kazakos, Emmanouil (2x), Guindy, Esmat Susanne (2x), Kvetny, Mark (2x)
12…b6 — 5.5% (136 parties)
Ambassadeurs : Morrow, Wolff (3x), Hollands, George E (3x), Antoniacci, Riccardo (2x), Zhigalko, Sergei (2x), Biedermann, Kyle (2x), Paredes, Carlos (2x), Kozak, Milos (2x), Justo, Damian (2x)
12…Qc7 — 3.5% (86 parties)
Ambassadeurs : Cyborowski, Lukasz (4x), Birnboim, Nathan (2x), Vilela De Acuna, Jose Luis (2x), Korelov, Alexander P (1x), Zhuravliov, Valerij (1x), Nagy, Edmund (1x), Yap, Aaliyah Gehlye (1x), Czerniak, Moshe (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 12…Rb8 12…Nh5 12…b6 12…Qc7
<1800 59 76% 7% 8% 3%
1800-2200 782 79% 9% 7% 4%
2200-2600 1410 81% 10% 5% 3%
2600+ 40 82% 12% — 5%
Évolution par décennie (% des parties)
Décennie N parties 12…Rb8 12…Nh5 12…b6 12…Qc7
1950s 8 88% — 12% —
1960s 32 69% 22% 6% 3%
1970s 85 68% 16% 1% 11%
1980s 192 89% 7% 2% 2%
1990s 161 79% 15% 3% 2%
2000s 428 82% 9% 3% 4%
2010s 1366 80% 9% 7% 4%
2020s 193 77% 11% 9% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
12…Rb8 80% 77% ▼ -3.4%
12…Nh5 9% 11% ▲ +2.7%
12…b6 7% 9% ▲ +2.6%
12…Qc7 4% 2% ▼ -1.4%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 8 parties
Kasparov, Garry — 1 partie
Ju, Wenjun — 1 partie
Anand, Viswanathan — 1 partie
Parties historiques
12…Rb8 — 80.2% (1978 parties)
1955 — Gereben, Erno vs Kluger, Gyula — 0-1 — Budapest HUN
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
12…Nh5 — 9.7% (239 parties)
1968 — Osnos, Viatcheslav vs Tal, Mikhail — 0-1 — Alma Ata ch-URS
1968 — Osnos, Viatcheslav vs Tal, Mikhail — 0-1 — Alma Ata KAZ
1968 — Lein, Anatoly vs Vasiukov, Evgeni — 1/2-1/2 — Alma Ata ch-URS
1969 — Ellis, James vs Gibbs, James Thomas — 1/2-1/2 — Lincoln
1969 — Osnos, Viatcheslav vs Tal, Mikhail — 0-1 — URS 7/100
12…b6 — 5.5% (136 parties)
1956 — Nemec, Tadeus vs Altschul, Milos — 0-1 — Bratislava SVK
1961 — Furman, Semyon vs Artsukevich, Victor — 1-0 — Leningrad RUS
1962 — De Bruycker, Bernard vs Riddell, John — 0-1 — Brussels BEL
1975 — Echevarria Ezponda, Javier vs Gorne Plaza, Ignacio — 0-1 — Benidorm
1982 — Ogaard, Leif vs Gausel, Einar J — 1-0 — Gausdal NOR
12…Qc7 — 3.5% (86 parties)
1963 — Korelov, Alexander P vs Zhuravliov, Valerij — 1-0 — ?
1971 — Marovic, Drazen vs Kazilaris, Nikolaos — 1/2-1/2 — Pula CRO
1974 — Castillo, Carlos vs Martinez, Carlos Alejandro — 0-1 — Caseros ch-ARG
1974 — Pribyl, Josef vs Lechtynsky, Jiri — 1-0 — Rimavska Sobota SVK
1976 — Czerniak, Moshe vs Damjanovic, Mato — 0-1 — Beer Sheba ISR