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A38i — Symmetrical, Main Line (1952)
1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.O-O O-O 7.a3
Les coups candidats
Ambassadeurs : Zahilas, Loukas N. (3x), Szmetan, Jorge (3x), Filipowicz, Andrzej (2x), Schmidt, Wlodzimierz (2x), Doda, Zbigniew (2x), Ankjer, Kenneth (2x), Aoyama, Yoshiaki (2x), Christiansen, Larry (2x)
7…d5 — 33.7% (330 parties)
Ambassadeurs : Udovcic, Mijo (3x), Andersson, Ulf (3x), Hulak, Krunoslav (2x), Antunes, Antonio (2x), Verduga Zavala, Denis (2x), Hickl, Norbert (2x), Stefanovic, Bosko (2x), Shamkovich, Leonid (1x)
7…a6 — 12.1% (119 parties)
Ambassadeurs : Larsen, Bent Ravn (2x), Ivkov, Borislav (2x), Hegeler, Anja (2x), Filipowicz, Andrzej (1x), Adamski, Jan (1x), Flesch, Janos (1x), Toran Albero, Roman (1x), Forintos, Gyozo V (1x)
7…e6 — 5.2% (51 parties)
Ambassadeurs : Homes, Helmut (2x), Huebner, Robert (1x), Tringov, Georgi P (1x), Stegmann, Volker (1x), Kuebert, Bernhard (1x), Todorcevic Antic, Miodrag (1x), Ivanov, Spiridon (1x), Hollsberg, Per (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…d6 7…d5 7…a6 7…e6
<1800 115 41% 26% 15% 6%
1800-2200 465 43% 31% 9% 5%
2200-2600 233 27% 43% 17% 4%
2600+ 1 — — — 100%
Évolution par décennie (% des parties)
Décennie N parties 7…d6 7…d5 7…a6 7…e6
1950s 2 — 100% — —
1960s 21 38% 24% 29% 5%
1970s 52 29% 44% 8% 8%
1980s 56 34% 39% 9% 2%
1990s 168 32% 42% 12% 5%
2000s 251 41% 25% 14% 6%
2010s 367 40% 31% 12% 5%
2020s 63 40% 44% 8% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…d6 40% 40% ▼ -0.6%
7…d5 31% 44% ▲ +13.1%
7…a6 12% 8% ▼ -3.8%
7…e6 5% 2% ▼ -3.9%
Parties historiques
7…d6 — 38.0% (372 parties)
1963 — Forintos, Gyozo V vs Flesch, János — 1/2-1/2 — Miskolc
1964 — Filipowicz, Andrzej vs Schmidt, Wlodzimierz — 1/2-1/2 — Polanica Zdroj POL
1964 — Doda, Zbigniew vs Parma, Bruno — 1/2-1/2 — Polanica Zdroj POL
1966 — Herstein, Ruth vs Fagin, Vernon — 1-0 — Seattle, WA USA
1967 — Schaufelberger, Heinz vs Meulders, Richard — 1-0 — ?
7…d5 — 33.7% (330 parties)
1952 — Krzisnik, Zvonko vs Udovcic, Mijo — 0-1 — Belgrade SRB
1959 — Wotulo, Max vs Campomanes, Florencio — 1-0 — Sydney AUS
1961 — Udovcic, Mijo vs Bertok, Mario Jr. — 0-1 — Portoroz SLO
1964 — Shamkovich, Leonid vs Krogius, Nikolai V — 1/2-1/2 — Ch URS Kiev UKR
1965 — Korzin, V vs Shipov, B — 0-1 — ?
7…a6 — 12.1% (119 parties)
1963 — Brandler, Anneliese vs Bain, Mary — 0-1 — Split CRO
1965 — Flesch, Janos vs Toran Albero, Roman — 1-0 — Malaga ESP
1966 — Forintos, Gyozo V vs Matanovic, Aleksandar — 1/2-1/2 — Titovo Uzice
1967 — Filipowicz, Andrzej vs Adamski, Jan — 1/2-1/2 — Szczecin ch POL
1967 — Larsen, Bent Ravn vs Ivkov, Borislav — 1-0 — Palma de Majorca ESP
7…e6 — 5.2% (51 parties)
1968 — Huebner, Robert vs Tringov, Georgi P — 1/2-1/2 — It Buesum GER
1971 — Benoit, Michel vs Cormier, K. — 1-0 — France
1973 — Christiansen, Larry vs Prundeanu, Horia — 1/2-1/2 — Bamberg
1977 — Todorcevic Antic, Miodrag vs Ivanov, Spiridon — 0-1 — Odessos
1978 — Hollsberg, Per vs Christensen, Allan — 1/2-1/2 — Ribe DEN