E63k - 9.e4 - Fianchetto, Panno (1956)

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E63k — Fianchetto, Panno (1956)
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nc6 7.O-O a6 8.h3 Rb8 9.e4
Les coups candidats
9…b5 — 68.0% (1224 parties)
Ambassadeurs : Hebden, Mark L (24x), Arkell, Keith C (10x), Zapata, Alonso (8x), Nikolic, Predrag (7x), Geller, Efim P. (6x), Vaganian, Rafael A (6x), Portisch, Lajos (5x), Kupreichik, Viktor D (5x)
9…Nd7 — 13.6% (245 parties)
Ambassadeurs : Huebner, Robert (4x), Thorbergsson, Freysteinn (2x), Larsen, Bent Ravn (2x), Sznapik, Aleksander (2x), Yoos, John C. (2x), Magnussen, Helge (2x), Erdogdu, Aziz Mert (2x), Yarmolyuk, Yury (2x)
9…e5 — 12.9% (233 parties)
Ambassadeurs : Krogius, Nikolai V (2x), Arkell, Keith C (2x), Born, Mario (2x), Tregubov, Pavel V. (2x), Di Cecco, Giuseppe (2x), Hilton, Stephen H (2x), Miguel, Nahuel (1x), De Las Heras, Juan Carlos (1x)
9…Bd7 — 2.4% (43 parties)
Ambassadeurs : Neamtu, Serban-Constantin (1x), Ghitescu, Theodor (1x), Miguel, Nahuel (1x), Burger, Karl (1x), Lappoehn, Hardy (1x), Rostalski, Walter (1x), Helmers, Wim (1x), Oney, Adil Feridun (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…b5 9…Nd7 9…e5 9…Bd7
<1800 45 69% 2% 20% —
1800-2200 591 65% 13% 15% 3%
2200-2600 960 70% 14% 12% 2%
2600+ 31 90% 6% 3% —
Évolution par décennie (% des parties)
Décennie N parties 9…b5 9…Nd7 9…e5 9…Bd7
1950s 21 62% 29% 10% —
1960s 28 39% 32% 18% 7%
1970s 50 68% 18% 8% 2%
1980s 156 76% 16% 5% 1%
1990s 259 66% 15% 13% 1%
2000s 444 60% 18% 14% 3%
2010s 729 73% 9% 13% 3%
2020s 113 68% 11% 18% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…b5 73% 68% ▼ -4.8%
9…Nd7 9% 11% ▲ +2.0%
9…e5 13% 18% ▲ +4.3%
9…Bd7 3% 3% +0.0%
Joueurs célèbres
Champions du monde dans cette position
Ju, Wenjun — 2 parties
Ding, Liren — 2 parties
Hou, Yifan — 2 parties
Kasparov, Garry — 1 partie
Parties historiques
9…b5 — 68.0% (1224 parties)
1955 — Larsen, Bent Ravn vs Olafsson, Fridrik — 1-0 — Oslo NOR
1955 — Lilienthal, Andor vs Vasiukov, Evgeni — 0-1 — Moscow RUS
1957 — Portisch, Lajos vs Mednis, Edmar J — 0-1 — Reykjavik ol stud tt
1957 — Portisch, Lajos vs Florian, Tibor — 1-0 — HUN-ch Budapest HUN
1957 — Fuchs, Reinhart vs Beni, Alfred — 1-0 — Sofia zt Sofia BUL
9…Nd7 — 13.6% (245 parties)
1956 — Larsen, Bent Ravn vs Thorbergsson, Freysteinn — 1/2-1/2 — Copenhagen DEN
1958 — Furman, Semyon vs Vasiukov, Evgeni — 1-0 — Vilnius LTU
1958 — Florian, Tibor vs Bak, Istvan — 1/2-1/2 — HUN-ch Budapest HUN
1958 — Malich, Burkhard, Dr. vs Bobotsov, Milko G — 1-0 — Balatonfured
1958 — Thorbergsson, Freysteinn vs Donner, Jan-Hein — 0-1 — Munchen olm
9…e5 — 12.9% (233 parties)
1958 — Thorbergsson, Freysteinn vs Mehdi Hasan Parag — 1-0 — Munich GER
1959 — Stupica, Janez vs Sofrevski, Jovan — 1/2-1/2 — Kragujevac ch14-YUG
1960 — Lehmann, Heinz vs Attard, Wilfred — 1-0 — Madrid zt
1961 — Goldenberg, Edgardo vs Quinones Carrillo, Oscar — 1-0 — Mar del Plata ARG
1962 — Reefschlaeger, Helmut, Dr. vs Huebner, Robert — 1/2-1/2 — Kiel GER
9…Bd7 — 2.4% (43 parties)
1964 — Miguel, Nahuel vs Burger, Karl — 0-1 — Sim. New York
1966 — Neamtu, Serban-Constantin vs Ghitescu, Theodor — 1/2-1/2 — Bucharest ROU
1979 — Lappoehn, Hardy vs Rostalski, Walter — 1/2-1/2 — Buchholz in der Nordheide
1984 — Helmers, Wim vs Oney, Adil Feridun — 1/2-1/2 — Thessaloniki GRE
1984 — Zysk, Robert vs Lane, Gary W — 0-1 — Oakham ENG