E69u - 10…a5 - Fianchetto, Classical (1951)

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E69u — Fianchetto, Classical (1951)
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 Re8 10.Re1 a5
Les coups candidats
Ambassadeurs : Portisch, Ferenc (3x), Incutto, Carlos (2x), Whiteley, Andrew Jonathan (2x), Timar, Zsolt (2x), Blees, Albert (2x), Van der Weide, Karel (2x), Onley, David E (2x), Furman, Semyon (1x)
11.Rb1 — 15.9% (67 parties)
Ambassadeurs : Neckar, Lubomir (3x), Gasztonyi, Endre (2x), Vukic, Milan (2x), Andersson, Ulf (2x), Cebalo, Miso (2x), O'Kelly de Galway, Alberic (1x), Donner, Jan-Hein (1x), Jansa, Vlastimil (1x)
11.b3 — 15.4% (65 parties)
Ambassadeurs : Salov, Sergej (3x), Bernal Moro, Luis Javier (2x), Stahlberg, Gideon (1x), Gunnarsson, Gunnar K (1x), Jelinek, Petr (1x), Chloupek, Stanislav (1x), Nemeth, Zoltan (1x), Portisch, Ferenc (1x)
11.Qc2 — 12.6% (53 parties)
Ambassadeurs : Keene, Raymond D (4x), Raupp, Thomas (3x), Szabo, Laszlo (2x), Portisch, Ferenc (2x), Littke, Adam (2x), Vladimirov, Boris T (1x), Novopashin, Arkady (1x), Korchnoi, Viktor (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 11.Be3 11.Rb1 11.b3 11.Qc2
<1800 5 20% — 20% 40%
1800-2200 127 50% 13% 17% 9%
2200-2600 232 50% 17% 16% 12%
2600+ 1 100% — — —
Évolution par décennie (% des parties)
Décennie N parties 11.Be3 11.Rb1 11.b3 11.Qc2
1950s 19 58% 21% 5% 11%
1960s 4 75% 25% — —
1970s 17 59% 6% — 35%
1980s 45 38% 27% 11% 22%
1990s 125 42% 22% 18% 12%
2000s 94 54% 15% 16% 11%
2010s 77 48% 8% 21% 9%
2020s 40 55% 2% 15% 8%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
11.Be3 48% 55% ▲ +6.9%
11.Rb1 8% 2% ▼ -5.3%
11.b3 21% 15% ▼ -5.8%
11.Qc2 9% 8% ▼ -1.6%
Parties historiques
11.Be3 — 48.5% (204 parties)
1950 — Fridstein, German vs Petrosian, Tigran V. — 1/2-1/2 — Moscow RUS
1951 — Szapiel, Henryk vs Stein, Georg — 1/2-1/2 — Bucharest ROU
1953 — Dworzynski, Roman vs Doda, Zbigniew — 1/2-1/2 — Krakow POL
1954 — Furman, Semyon vs Lutikov, Anatoly S — 0-1 — Riga LAT
1954 — Lipnitsky, Isaac vs Gusjkov, Yuri P. — 1-0 — ?
11.Rb1 — 15.9% (67 parties)
1955 — Haag, Ervin vs Gasztonyi, Endre — 1/2-1/2 — Voros Lobogo
1955 — Forintos, Gyozo V vs Gasztonyi, Endre — 1-0 — Voros Lobogo
1956 — O'Kelly de Galway, Alberic vs Donner, Jan-Hein — 1/2-1/2 — Ostend
1957 — Dunkelblum, Arthur vs Durão, Joaquim Manuel — 1-0 — Dublin zt
1969 — Jansa, Vlastimil vs Honfi, Karoly — 1/2-1/2 — Zalaegerszeg
11.b3 — 15.4% (65 parties)
1957 — Stahlberg, Gideon vs Gunnarsson, Gunnar K — 1-0 — Reykjavik ISL
1982 — Mariotti, Sergio vs Tatai, Stefano — 1-0 — Rome ITA
1988 — Kirov, Nino vs Brendel, Oliver — 1-0 — Bern op Bern SUI
1988 — Stempin, Pawel vs Ferreira, Abraao Souto — 1/2-1/2 — Thessaloniki GRE
1989 — Jelinek, Petr vs Chloupek, Stanislav — 1-0 — Karvina
11.Qc2 — 12.6% (53 parties)
1954 — Vladimirov, Boris T vs Novopashin, Arkady — 1-0 — Gorki ch22-SU sf
1954 — Korchnoi, Viktor vs Vasyukov, Egor — 1-0 — Riga LAT
1973 — Keene, Raymond D vs Szabo, Laszlo — 1/2-1/2 — Hastings Hastings ENG
1973 — Keene, Raymond D vs Szabo, Laszlo — 1/2-1/2 — Hastings ENG
1973 — Keene, Raymond D vs Ciocaltea, Victor — 1-0 — Bath etc