A63c - 10.a4 Nbd7 - Fianchetto (1940)

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A63c — Fianchetto (1940)
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 a6 10.a4 Nbd7
Les coups candidats
Ambassadeurs : Marovic, Drazen (12x), Ilincic, Zlatko (11x), Birnboim, Nathan (10x), Cebalo, Miso (10x), Kunsztowicz, Uwe (5x), Glavina, Pablo (5x), Allawi Rawlings (5x), Kovacevic, Aleksandar (4x)
11.Bf4 — 36.7% (884 parties)
Ambassadeurs : Drasko, Milan (15x), Gleizerov, Evgeny (12x), Daurelle, Herve (10x), Hausner, Ivan (8x), Cebalo, Miso (7x), Nikolic, Predrag (7x), Hjartarson, Johann (5x), Campbell, Eoin S. (5x)
11.h3 — 10.5% (253 parties)
Ambassadeurs : Razuvaev, Yuri S (2x), Alburt, Lev (2x), Olafsson, Helgi (2x), Ree, Hans (2x), Moran Nuque, Bernardo (2x), Donner, Jan-Hein (2x), Ermenkov, Evgenij (2x), Magerramov, Elmar (2x)
11.e4 — 4.6% (112 parties)
Ambassadeurs : Ligterink, Gert (8x), Sosonko, Gennadi (3x), Franco Ocampos, Zenon (3x), Behrensen, Jorge (2x), Miguel, Nahuel (2x), Piket, Jeroen (2x), Winants, Luc (2x), Short, Nigel D (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 11.Nd2 11.Bf4 11.h3 11.e4
<1800 61 33% 48% 5% 7%
1800-2200 701 41% 37% 10% 6%
2200-2600 1372 43% 38% 12% 4%
2600+ 32 41% 47% 3% —
Évolution par décennie (% des parties)
Décennie N parties 11.Nd2 11.Bf4 11.h3 11.e4
1950s 23 65% 26% — —
1960s 33 73% 9% 3% 9%
1970s 120 82% 8% 6% 1%
1980s 241 50% 24% 11% 9%
1990s 371 45% 32% 11% 6%
2000s 573 43% 36% 12% 5%
2010s 919 39% 43% 11% 3%
2020s 129 16% 66% 7% 4%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
11.Nd2 39% 16% ▼ -23.5%
11.Bf4 43% 66% ▲ +22.7%
11.h3 11% 7% ▼ -4.0%
11.e4 3% 4% ▲ +0.7%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 4 parties
Ju, Wenjun — 2 parties
Kasparov, Garry — 1 partie
Hou, Yifan — 1 partie
Gukesh D — 1 partie
Parties historiques
11.Nd2 — 43.6% (1051 parties)
1953 — Eken, Max vs Kotov, Alexander — 1-0 — Zurich SUI
1954 — Donner, Jan-Hein vs Filip, Miroslav — 0-1 — Amsterdam olm
1954 — Smyslov, Vasily vs Pachman, Ludek — 1/2-1/2 — Amsterdam NED
1954 — Smyslov, Vasily vs Pachman Ludek — 1/2-1/2 — Olympiad, Amsterdam NED
1955 — Rossolimo, Nicolas vs Sherwin, James T — 1-0 — Long Beach, CA USA
11.Bf4 — 36.7% (884 parties)
1955 — Wexler, Bernardo vs Pachman, Ludek — 0-1 — Mar del Plata ARG
1955 — Turner, Abe J vs Saidy, Anthony — 0-1 — Long Beach, CA USA
1958 — Olivera, Alfredo vs Letelier Martner, Rene — 0-1 — Mar del Plata ARG
1959 — Barenboim, Grigory vs Keres, Paul — 0-1 — Moscow RUS
1959 — Bernstein, Sidney vs Rapaka Samuel Paul — 0-1 — New York ch-USA
11.h3 — 10.5% (253 parties)
1960 — Abad Calderon, Abraham vs Hindle, Owen Mark — 1/2-1/2 — Leicester
1970 — Hernandez Ronny vs Holm, Sejer — 0-1 — Siegen olm
1972 — Ivkov, Borislav vs Ree, Hans — 1/2-1/2 — Wijk aan Zee NED
1972 — Artiunov, Kirkor vs Ermenkov, Evgenij — 0-1 — Sofia BUL
1973 — Weyerstrass, Ronald vs Baart, Joan — 0-1 — Blaricum
11.e4 — 4.6% (112 parties)
1964 — Behrensen, Jorge vs Miguel, Nahuel — 1/2-1/2 — Buenos Aires ch-AR (
1964 — Behrensen, Jorge vs Miguel, Nahuel — 1/2-1/2 — Buenos Aires ARG
1964 — Mello, Jose Benicio vs Alves, Francisco H B Severino — 0-1 — Brasilia BRA
1977 — Sosonko, Gennadi vs Ligterink, Gert — 1-0 — Wijk aan Zee NED
1981 — Ligterink, Gert vs Van der Poel, Henk — 1/2-1/2 — Utrecht tt