E62s - 8.d5 - Fianchetto, Simagin (1936)

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E62s — Fianchetto, Simagin (1936)
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nc6 7.O-O Bg4 8.d5
Les coups candidats
8…Na5 — 75.6% (696 parties)
Ambassadeurs : Taimanov, Mark (9x), Ciocaltea, Victor (9x), Velimirovic, Dragoljub (7x), Quinteros, Miguel A. (6x), Martin Del Campo Cardenas, Roberto Abel (6x), Hort, Vlastimil (5x), Bak, Istvan (5x), Westerinen, Heikki M.J. (5x)
8…Bxf3 — 22.1% (204 parties)
Ambassadeurs : Osnos, Viatcheslav (2x), Petrosian, Tigran V. (2x), Gurgenidze, Bukhuti (2x), Westerinen, Heikki M.J. (2x), Schweber, Samuel (2x), Kraidman, Yair (2x), Ibrayev, Nurlan (2x), ? (1x)
8…Nb8 — 1.1% (10 parties)
Ambassadeurs : Ardeleanu, Alin (2x), Keene, Raymond D (1x), Woodcock, Christopher Francis (1x), Van Antwerpen (1x), Van der By (1x), Rotstein, Arkadij (1x), Lauria, Amilcare (1x), Fancsy, Imre (1x)
8…Ne5 — 1.0% (9 parties)
Ambassadeurs : Eken, Max (1x), Filip, Miroslav (1x), Hadi, Adrian (1x), Stepak, Yedael (1x), Atanasov, Petko (1x), Peev, Peicho (1x), Lindholm, Pertti (1x), Antas, Bartlomiej (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8…Na5 8…Bxf3 8…Nb8 8…Ne5
<1800 23 57% 35% 4% 4%
1800-2200 181 69% 30% — 1%
2200-2600 561 80% 18% 1% 1%
2600+ 7 86% 14% — —
Évolution par décennie (% des parties)
Décennie N parties 8…Na5 8…Bxf3 8…Nb8 8…Ne5
1950s 26 54% 42% — 4%
1960s 80 68% 30% 1% 1%
1970s 97 90% 10% — —
1980s 81 80% 19% — 1%
1990s 125 70% 26% 3% 1%
2000s 112 73% 24% 1% 2%
2010s 303 76% 22% 1% 1%
2020s 97 79% 19% 2% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8…Na5 76% 79% ▲ +3.5%
8…Bxf3 22% 19% ▼ -3.6%
8…Nb8 1% 2% ▲ +1.4%
8…Ne5 1% 0% ▼ -1.0%
Joueurs célèbres
Champions du monde dans cette position
Ju, Wenjun — 2 parties
Tal, Mikhail — 1 partie
Ding, Liren — 1 partie
Parties historiques
8…Na5 — 75.6% (696 parties)
1953 — Klasup, Karlis vs Tal, Mikhail — 1-0 — Riga LAT
1954 — Wade, Robert G vs Djurasevic, Bozidar — 1/2-1/2 — Belgrade SRB
1957 — Portisch, Lajos vs Kozma, Julius — 1-0 — Reykjavik ISL
1957 — Filip, Miroslav vs Unzicker, Ferdinand, Dr. — 1/2-1/2 — Wenen etc
1957 — Heinicke, Herbert vs Taimanov, Mark — 0-1 — Wenen etc
8…Bxf3 — 22.1% (204 parties)
1954 — Rolland, Pierre vs Mazzoni, Guy — 1-0 — Paris FRA
1954 — Stahlberg, Gideon vs Voiculescu, Paul — 1-0 — Bucharest ROU
1956 — Petrosian, Tigran V. vs Gurgenidze, Bukhuti — 1-0 — Tbilisi GEO
1956 — Petrosian, Tigran V. vs Gurgenidze, Bukhuti — 1-0 — Tbilisi GEO
1956 — Osnos, Viatcheslav vs Stein, Leonid — 1/2-1/2 — Soviet Union
8…Nb8 — 1.1% (10 parties)
1968 — Keene, Raymond D vs Woodcock, Christopher Francis — 1-0 — Univ of London Union
1991 — Van Antwerpen vs Van der By — 1-0 — corr Netherlands
1997 — Fancsy, Imre vs Ardeleanu, Alin — 1/2-1/2 — Gyula HUN
1997 — Navrotescu, Catalin vs Ardeleanu, Alin — 1-0 — Tusnad
1998 — Rotstein, Arkadij vs Lauria, Amilcare — 1-0 — San Benedetto
8…Ne5 — 1.0% (9 parties)
1955 — Eken, Max vs Filip, Miroslav — 1/2-1/2 — Rotterdam NED
1962 — Hadi, Adrian vs Stepak, Yedael — 1-0 — Marianske Lazne
1983 — Atanasov, Petko vs Peev, Peicho — 1/2-1/2 — Ruse
1999 — Lindholm, Pertti vs Antas, Bartlomiej — 1-0 — ICCF
2001 — Podzielny, Karl-Heinz vs Curic, Drazen — 1-0 — Essen-Borbeck GER