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A32t — Symmetrical, Two Knights (1929)
1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Bb4 6.Nb5
Les coups candidats
6…d5 — 41.0% (180 parties)
Ambassadeurs : Polugaevsky, Lev (3x), Gipslis, Aivars (2x), Olafsson, Thorir (2x), Debarnot, Roberto (2x), Rubinetti, Jorge (2x), Lengyel, Levente (2x), Tal, Mikhail (2x), Dubin, Adi (2x)
6…O-O — 40.8% (179 parties)
Ambassadeurs : Planinec, Albin (3x), Rapaka Samuel Paul (2x), Espinosa Flores, Rafael Emilio (2x), Vaganian, Rafael A (2x), Onoda, Hirokaz (2x), Renteria Becerra, Jorge Eliecer (2x), Hnydiuk, Aleksander (2x), Alster, Ladislav (1x)
6…a6 — 11.8% (52 parties)
Ambassadeurs : McCormick, James (2x), Xu, Jun (2x), Portisch, Lajos (2x), Groth, Klaus-Ulrich Dr (2x), Arnold, Marc (2x), Pomar Salamanca, Arturo (1x), Marovic, Drazen (1x), Rantanen, Yrjo A. (1x)
Ambassadeurs : Bystrov, Sergey V. (1x), Maryasin, Boris (1x), Amos, Bruce M. (1x), Evans, Larry (1x), Mascarenhas, Alberto Pinheiro (1x), Van Riemsdijk, Herman C. (1x), Gunawan, Ronny (1x), Hulak, Krunoslav (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6…d5 6…O-O 6…a6 6…Nc6
<1800 8 25% 25% 38%
1800-2200 112 41% 40% 9% 4%
2200-2600 236 41% 41% 14% 3%
2600+ 2 50% 50%
Évolution par décennie (% des parties)
Décennie N parties 6…d5 6…O-O 6…a6 6…Nc6
1950s 11 55% 27% 18%
1960s 7 29% 57% 14%
1970s 60 55% 30% 8% 3%
1980s 59 34% 53% 8% 5%
1990s 82 38% 39% 16%
2000s 107 41% 43% 10% 4%
2010s 102 41% 37% 13% 2%
2020s 11 18% 64% 18%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6…d5 41% 18% ▼ -23.0%
6…O-O 37% 64% ▲ +26.4%
6…a6 13% 18% ▲ +5.4%
6…Nc6 2% 0% ▼ -2.0%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 3 parties
Botvinnik, Mikhail — 1 partie
Ju, Wenjun — 1 partie
Parties historiques
6…d5 — 41.0% (180 parties)
1957 — Olafsson, Fridrik vs Gipslis, Aivars — 1/2-1/2 — WchT U26 Reykjavik ISL
1957 — Roos, Michel vs Saint-Germain, Gaston de — 1-0 — cr ch FRA
1957 — Miroshnichenko, Aleksander vs Abanin, Vladimir — 1/2-1/2 — Ashkhabad
1957 — Bykov, Valery N. vs Efimov, Kondrat — 1-0 — Leningrad RUS
1957 — Olafsson, Thorir vs Gipslis, Aivars — 0-1 — Reykjavik ISL
6…O-O — 40.8% (179 parties)
1954 — Pedersen, Ebbe vs Filip, Marius Liviu — 0-1 — Prague zt
1956 — Letelier Martner, Rene vs Johannsson, Isak Gunnsteinn — 1/2-1/2 — Moskou olm
1959 — Alster, Ladislav vs Pachman, Ludek — 1/2-1/2 — Bratislava SVK
1960 — Espinosa Flores, Rafael Emilio vs Goldenberg, Edgardo — 1-0 — Buenos Aires ch-ARG
1960 — Espinosa Flores, Rafael Emilio vs Miguel, Nahuel — 1/2-1/2 — Buenos Aires ch-ARG
6…a6 — 11.8% (52 parties)
1957 — Bykov, Vladimir vs Spassky, Boris V. — 1/2-1/2 — Leningrad RUS
1958 — Rantanen, Yrjo A. vs Prins, Lodewijk — 1/2-1/2 — Munchen olm
1969 — Pomar Salamanca, Arturo vs Marovic, Drazen — 1/2-1/2 — Malaga ESP
1971 — Benko, Pal vs Quinteros, Miguel A. — 1/2-1/2 — Malaga ESP
1972 — Krisko, Milan vs Sikora-Lerch, Jan — 0-1 — Trinec CZE
6…Nc6 — 2.5% (11 parties)
1973 — Amos, Bruce M. vs Evans, Larry — 1/2-1/2 — USA op Chicago, IL USA
1976 — Rath, Ulrik vs Fedder, Steen — 1/2-1/2 — Aarhus DEN
1983 — Gunawan, Ronny vs Hulak, Krunoslav — 1/2-1/2 — Jakarta / Yogya / Bali
1986 — Mascarenhas, Alberto Pinheiro vs Van Riemsdijk, Herman C. — 1/2-1/2 — Garanhuns
1987 — Bystrov, Sergey V. vs Maryasin, Boris — 1/2-1/2 — Minsk BLR