A37l - 6…Nge7 - Symmetrical (1949)

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A37l — Symmetrical (1949)
1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 e6 6.O-O Nge7
Les coups candidats
Ambassadeurs : Larsen, Bent Ravn (12x), Koehler, Josef (11x), Larsen, Bent (8x), Pfleger, Helmut, Dr. (7x), Smejkal, Jan (6x), Wheeler, Cameron (6x), Browne, Walter Shawn (5x), Malich, Burkhard, Dr. (5x)
Ambassadeurs : Doda, Zbigniew (6x), Vastrukhin, Oleg (6x), Espig, Lutz (5x), Adorjan, Andras (4x), Pfleger, Helmut, Dr. (3x), Suetin, Alexey S (3x), Karlsson, Lars 1937 (3x), Ribli, Zoltan (3x)
7.d4 — 7.0% (312 parties)
Ambassadeurs : Wrba, Klaus (5x), Feustel, Bernd (4x), Leitner, Maximilian (2x), Schwartzman, Gabriel (2x), Ruck, Robert (2x), Adorjan, Andras (2x), McGarrett, Ian (2x), Angelov, Georgi (2x)
7.a3 — 6.9% (309 parties)
Ambassadeurs : Navrotescu, Andreea (3x), Faibisovich, Vadim Z (2x), Bove Quist, Viggo (2x), Radziejewski, Dariusz (2x), Kaid, Almar, Dr. (2x), Peptan, Corina-Isabela (2x), Szmetan, Jorge (2x), Turner, Radek (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7.d3 7.e3 7.d4 7.a3
<1800 201 54% 21% 3% 6%
1800-2200 1689 53% 20% 7% 6%
2200-2600 2066 49% 24% 8% 8%
2600+ 45 40% 27% 9% 13%
Évolution par décennie (% des parties)
Décennie N parties 7.d3 7.e3 7.d4 7.a3
1950s 10 100% — — —
1960s 97 52% 28% 1% 5%
1970s 241 54% 29% 2% 4%
1980s 280 51% 29% 3% 3%
1990s 724 54% 22% 5% 6%
2000s 936 51% 22% 7% 7%
2010s 1764 52% 19% 8% 9%
2020s 424 40% 28% 13% 5%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7.d3 52% 40% ▼ -12.1%
7.e3 19% 28% ▲ +8.5%
7.d4 8% 13% ▲ +4.7%
7.a3 9% 5% ▼ -4.4%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 8 parties
Karpov, Anatoly — 3 parties
Carlsen, Magnus — 2 parties
Anand, Viswanathan — 1 partie
Ding, Liren — 1 partie
Parties historiques
7.d3 — 51.3% (2294 parties)
1956 — Koblencs, Alexander vs Korchnoi, Viktor — 1/2-1/2 — Tbilisi GEO
1957 — Uhlmann, Wolfgang vs Trifunovic, Petar — 1/2-1/2 — Wageningen NED
1957 — Kholmov, Ratmir D vs Korchnoi, Viktor — 1/2-1/2 — Sverdlovsk
1957 — Kolarov, Atanas S. vs Donner, Jan-Hein — 0-1 — Wageningen NED
1958 — Lombardy, William J vs Bobotsov, Milko G — 1/2-1/2 — Varna BUL
7.e3 — 22.3% (996 parties)
1960 — Hoen, Ragnar Harald vs Raisa, Unto — 1/2-1/2 — Leipzig GER
1963 — Zakharov, Igor vs Shamkovich, Leonid — 1/2-1/2 — Moscow RUS
1964 — Bannik, Anatolij vs Shamkovich, Leonid — 0-1 — Kiev ch-URS
1965 — Doda, Zbigniew vs Fischer, Robert J — 0-1 — Havana CUB
1965 — Doda, Zbigniew vs Donner, Jan-Hein — 1/2-1/2 — Havana CUB
7.d4 — 7.0% (312 parties)
1966 — Steiner, Adam vs Tukmakov, Vladimir B — 0-1 — Orel
1976 — Zabala, Adriel vs Fernandez Garcia, Jose Luis(2) — 0-1 — Bilbao
1976 — Feustel, Bernd vs Hartmann, Gerald — 1-0 — Gauting
1976 — Kestler, Hans-Guenther vs Franke, Reiner, Prof. Dr. — 1/2-1/2 — Hallstadt
1978 — Jussupow, Artur vs Cordes, Hans-Joerg, Dr. — 1/2-1/2 — Graz AUT
7.a3 — 6.9% (309 parties)
1964 — Rapaka Samuel Paul vs Bak, Istvan — 1/2-1/2 — Amsterdam izt
1965 — Neikirkh, Oleg vs Matulovic, Milan — 0-1 — Polanica Zdroj POL
1967 — Suetin, Alexey S vs Hort, Vlastimil — 1/2-1/2 — Hastings ENG
1967 — Babev, Aleksandar vs Faibisovich, Vadim Z — 0-1 — Harrachov
1968 — Bykov, Valery vs Faibisovich, Vadim Z — 0-1 — ?