A37h - 6…Nh6 - Symmetrical (1955)

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A37h — Symmetrical (1955)
1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 d6 6.O-O Nh6
Les coups candidats
7.d3 — 30.2% (180 parties)
Ambassadeurs : Ebner, Hubert (3x), Petrov, Georgi (3x), Rapaka Samuel Paul (2x), Pils, Walter (2x), Meszaros, Michal (2x), Maryasin, Boris (2x), Evans, Larry (1x), Naranja, Renato (1x)
7.d4 — 25.5% (152 parties)
Ambassadeurs : Ben Artzi, Ido (5x), Loginov, Valery A (2x), Andersson, Ulf (2x), Carvalho, Guillermo (2x), Onur, Cem (2x), Anay Barche (1x), Damjanovic, Mato (1x), Feustel, Bernd (1x)
7.a3 — 19.3% (115 parties)
Ambassadeurs : Enchev, Ivajlo (2x), Etruk, Rein T (1x), Bannik, Anatolij (1x), Uhlmann, Wolfgang (1x), Filip, Miroslav (1x), Portisch, Lajos (1x), Gufeld, Eduard (1x), Neikirkh, Oleg (1x)
7.b3 — 9.2% (55 parties)
Ambassadeurs : Pirc, Vasja (2x), Bak, Istvan (2x), Milic, Borislav (1x), Haag, Ervin (1x), Kotov, Alexander (1x), Korchnoi, Viktor (1x), Chernin, Alexander (1x), Olafsson, Helgi (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7.d3 7.d4 7.a3 7.b3
<1800 9 44% 11% 44% —
1800-2200 153 29% 23% 16% 7%
2200-2600 374 30% 29% 20% 9%
2600+ 14 14% 36% 14% 29%
Évolution par décennie (% des parties)
Décennie N parties 7.d3 7.d4 7.a3 7.b3
1950s 10 70% — 20% 10%
1960s 14 36% — 29% 21%
1970s 14 21% 14% 36% 14%
1980s 25 20% 8% 32% 8%
1990s 92 29% 18% 20% 12%
2000s 101 51% 14% 17% 4%
2010s 288 23% 35% 19% 8%
2020s 53 26% 28% 11% 19%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7.d3 23% 26% ▲ +3.2%
7.d4 35% 28% ▼ -7.1%
7.a3 19% 11% ▼ -7.8%
7.b3 8% 19% ▲ +11.2%
Joueurs célèbres
Champions du monde dans cette position
Carlsen, Magnus — 4 parties
Botvinnik, Mikhail — 1 partie
Hou, Yifan — 1 partie
Gukesh D — 1 partie
Parties historiques
7.d3 — 30.2% (180 parties)
1956 — Evans, Larry vs Rapaka Samuel Paul — 1/2-1/2 — New York, NY USA
1956 — Furman, Semyon vs Petrosian, Tigran V. — 1/2-1/2 — URS-ch sf Tbilisi GEO
1957 — Filip, Miroslav vs Neikirkh, Oleg — 1/2-1/2 — Sofia zt Sofia BUL
1957 — Rapaka Samuel Paul vs Byrne, David — 1-0 — New York, NY USA
1958 — Filchev, Rusko vs Orev, Petar — 1-0 — Sofia BUL
7.d4 — 25.5% (152 parties)
1972 — Anay Barche vs Damjanovic, Mato — 1/2-1/2 — Zagreb CRO
1975 — Feustel, Bernd vs Tauber, Manfred — 1/2-1/2 — Coburg
1983 — Andersson, Ulf vs Van der Wiel, John T.H. — 1-0 — Wijk aan Zee NED
1985 — Haritakis, Theodoros vs Bousios, Hristos — 1-0 — ?
1990 — Mueller, Norbert vs Simonov, Viktor — 0-1 — Moscow op Moscow RUS
7.a3 — 19.3% (115 parties)
1958 — Neikirkh, Oleg vs Bronstein, David I — 1/2-1/2 — Portoroz SLO
1958 — Larsen, Benjamin Holsko vs Sanguinetti, Ricardo — 1-0 — Mar del Plata ARG
1961 — Uhlmann, Wolfgang vs Filip, Miroslav — 1/2-1/2 — Budapest HUN
1961 — Portisch, Lajos vs Gufeld, Eduard — 1/2-1/2 — Moskou ZShK
1962 — Etruk, Rein T vs Bannik, Anatolij — 1/2-1/2 — Leningrad RUS
7.b3 — 9.2% (55 parties)
1955 — Kotov, Alexander vs Korchnoi, Viktor — 1-0 — Moskou ch-URS
1962 — Pirc, Vasja vs Bak, Istvan — 1/2-1/2 — Kecskemet HUN
1962 — Pirc, Vasja vs Milic, Borislav — 1/2-1/2 — Vrnjacka Banja SRB
1963 — Haag, Ervin vs Bak, Istvan — 0-1 — Budapest ch-HUN
1970 — ABDELMUNEM SAAD vs Garces, Napoleon — 1/2-1/2 — Cordoba ARG