E69c - 9…a6 - Fianchetto, Classical (1955)

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E69c — Fianchetto, Classical (1955)
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nbd7 7.O-O e5 8.e4 c6 9.h3 a6
Les coups candidats
10.Be3 — 46.1% (229 parties)
Ambassadeurs : Konopka, Michal (3x), Quinones Carrillo, Oscar (2x), Eliskases, Erich (2x), Bukic, Enver (2x), Walther, Edgar (2x), Donner, Jan-Hein (2x), Bogdanovic, Rajko (2x), Bukal, Vladimir Jr. (2x)
10.a4 — 18.5% (92 parties)
Ambassadeurs : Reizniece, Dana (2x), Xie, Jun (2x), Pfeiffer, Gregor (2x), Horvath, Peter (2x), Cuartas, Jaime Alexander (1x), Calvyn Shane Martinez (1x), Nakanishi, Seido (1x), Naile, Alain (1x)
10.Re1 — 11.1% (55 parties)
Ambassadeurs : Adamski, Jan (2x), Pirc, Vasja (1x), Lehmann, Heinz (1x), Golz, Werner (1x), Johannessen, Svein (1x), Ivkov, Borislav (1x), Pachman, Ludek (1x), Petrosian, Tigran V. (1x)
10.Qc2 — 9.5% (47 parties)
Ambassadeurs : Sokolov, Vladimir (2x), Casper, Thomas (2x), Shestoperov, Aleksej (1x), Nezhmetdinov, Rashid (1x), Schweber, Samuel (1x), Garcia, Horacio Pedro (1x), Kozma, Julius (1x), Trapl, Jindrich (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 10.Be3 10.a4 10.Re1 10.Qc2
<1800 16 56% 25% 6% —
1800-2200 158 46% 30% 8% 3%
2200-2600 235 45% 14% 12% 12%
2600+ 5 80% — — 20%
Évolution par décennie (% des parties)
Décennie N parties 10.Be3 10.a4 10.Re1 10.Qc2
1950s 10 70% — 10% 10%
1960s 27 59% 4% 15% 15%
1970s 24 29% 12% 17% 25%
1980s 37 51% 5% 5% 16%
1990s 125 47% 18% 14% 8%
2000s 111 49% 19% 11% 6%
2010s 137 38% 26% 9% 9%
2020s 26 58% 27% 8% 4%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
10.Be3 38% 58% ▲ +19.7%
10.a4 26% 27% ▲ +1.4%
10.Re1 9% 8% ▼ -1.1%
10.Qc2 9% 4% ▼ -4.9%
Parties historiques
10.Be3 — 46.1% (229 parties)
1953 — Donner, Jan-Hein vs Van Donk, Henk — 1-0 — Utrecht LB
1955 — Kramer, Hanspeter vs Perez Florencio — 1-0 — Beverwijk NED
1955 — Borisenko, Georgy K vs Shdjarskij — 1-0 — URS-ch03 corr5557
1956 — Eliskases, Erich vs Rubio Purrinos, Hugo — 1-0 — Montevideo URU
1958 — Portisch, Lajos vs Penrose, Jonathan — 1/2-1/2 — Munchen olm
10.a4 — 18.5% (92 parties)
1966 — Cuartas, Jaime Alexander vs Calvyn Shane Martinez — 0-1 — Havana CUB
1970 — Wolf, Rudolf vs Jankovec, Ivan — 1-0 — Harrachov
1976 — Nakanishi, Seido vs Naile, Alain — 0-1 — Joao Pessoa
1977 — Gereben, Erno vs Loken, K. O — 1/2-1/2 — Hamar
1980 — Fries-Nielsen, Niels Jorgen vs Mortensen, Erling — 1-0 — Esbjerg ;kat. 8
10.Re1 — 11.1% (55 parties)
1955 — Pachman, Ludek vs Petrosian, Tigran V. — 1/2-1/2 — Goteborg izt
1962 — Johannessen, Svein vs Ivkov, Borislav — 1/2-1/2 — Belgrade SRB
1964 — Pirc, Vasja vs Lehmann, Heinz — 0-1 — Amsterdam NED
1968 — Golz, Werner vs Adamski, Jan — 1-0 — Polanica Zdroj POL
1968 — Padevsky, Nikola vs Adamski, Jan — 1/2-1/2 — Lugano SUI
10.Qc2 — 9.5% (47 parties)
1958 — Stupica, Janez vs Winiwarter, Felix — 1-0 — Reggio Emilia ITA
1963 — Schweber, Samuel vs Garcia, Horacio Pedro — 1/2-1/2 — Buenos Aires ch-ARG
1966 — Shestoperov, Aleksej vs Nezhmetdinov, Rashid — 1-0 — Saratov
1967 — Kozma, Julius vs Trapl, Jindrich — 1-0 — Bratislava SVK
1968 — Marovic, Drazen vs Bronstein, David I — 1/2-1/2 — Amsterdam NED