A36c - 4.Nf3 - Symmetrical (1923)

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A36c — Symmetrical (1923)
1.c4 c5 2.Nc3 Nc6 3.g3 e6 4.Nf3
Les coups candidats
Ambassadeurs : Petursson, Margeir (3x), Bischoff, Klaus (2x), Hernandez Onna, Roman (2x), Renman, Nils-Gustaf (2x), Gil Reguera, Juan Carlos (2x), Almarza Mato, Carlos (2x), Petrosian, Tigran V. (1x), Borisenko, Georgy K (1x)
4…d5 — 23.8% (132 parties)
Ambassadeurs : Haussernot, Cecile (3x), Shamkovich, Leonid (2x), Pérez Jorrín, Enri Arturo (2x), Stelmaszyk, Nico (2x), Szabo, Laszlo (1x), Passerotti, Pierluigi (1x), Bozzo, Rodolfo (1x), Spraggett, Kevin (1x)
4…g6 — 9.7% (54 parties)
Ambassadeurs : Bykov, Valery (1x), Faibisovich, Vadim Z (1x), Litynska, Marta (1x), Kellner, Nikolaus (1x), Osieka, Udo (1x), Huisl, Wolfgang (1x), Law, Andrew P (1x), O`Connell, Kevin J. (1x)
4…b6 — 7.0% (39 parties)
Ambassadeurs : Tomkins, Ken (2x), Welin, Thomas (2x), Schneider, Lars-Ake (2x), Lisenko, Alexander V (2x), Pedersen, Jens Otto (1x), Fries-Nielsen, Niels Jorgen (1x), Salmon, Neil V. (1x), Zuk, Robert D. (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…Nf6 4…d5 4…g6 4…b6
<1800 60 58% 13% 13% —
1800-2200 216 41% 24% 14% 8%
2200-2600 173 47% 31% 5% 9%
2600+ 2 50% — — —
Évolution par décennie (% des parties)
Décennie N parties 4…Nf6 4…d5 4…g6 4…b6
1960s 5 60% 20% 20% —
1970s 13 62% 23% 15% —
1980s 38 24% 47% 11% 18%
1990s 98 55% 22% 4% 9%
2000s 156 46% 23% 12% 4%
2010s 175 47% 18% 11% 9%
2020s 70 44% 30% 7% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…Nf6 47% 44% ▼ -2.6%
4…d5 18% 30% ▲ +12.3%
4…g6 11% 7% ▼ -4.3%
4…b6 9% 3% ▼ -5.7%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 2 parties
Parties historiques
4…Nf6 — 46.5% (258 parties)
1964 — Petrosian, Tigran V. vs Borisenko, Georgy K — 1-0 — Moscow RUS
1964 — Taimanov, Mark vs Padevsky, Nikola — 1/2-1/2 — Havana CUB
1967 — Nei, Iivo vs Pavlenko, Oleg — 1/2-1/2 — Moscow RUS
1972 — Garcia, Eder Raimundo vs Garcia, Horacio Pedro — 1-0 — Buenos Aires ch-ARG
1973 — Osterman, Rudolf vs Parma, Bruno — 0-1 — Vidmar mem Ljubljana/Portoroz
4…d5 — 23.8% (132 parties)
1963 — Szabo, Laszlo vs Shamkovich, Leonid — 1/2-1/2 — Sarajevo BIH
1970 — Huebner, Robert vs Penrose, Jonathan — 1/2-1/2 — Paignton
1976 — Spiridonov, Nikola vs Espig, Lutz — 1/2-1/2 — Halle GER
1978 — Budt, Karl-Heinz vs Geisler, Reinhard — 1-0 — Borgholzhausen
1980 — Cramling, Dan vs Strauss, David — 1-0 — Gausdal NOR
4…g6 — 9.7% (54 parties)
1968 — Bykov, Valery vs Faibisovich, Vadim Z — 0-1 — ?
1976 — Litynska, Marta vs Kellner, Nikolaus — 1-0 — Tbilisi izt wmn
1977 — Law, Andrew P vs O`Connell, Kevin J. — 1-0 — Piccadilly Hotel London
1984 — Marfia James vs Kabuye Micheal Ronald — 1-0 — Plymouth ch-MI op
1986 — Hoffmann, Guenter vs Kribben, Matthias, Dr. — 1-0 — Baltic tt5 corr8691
4…b6 — 7.0% (39 parties)
1980 — Pedersen, Jens Otto vs Fries-Nielsen, Niels Jorgen — 1/2-1/2 — Odense DEN
1982 — Welin, Thomas vs Lachendro, Karol — 0-1 — Ystad ch-SE
1982 — Welin, Thomas vs Schneider, Lars-Ake — 0-1 — Gavle
1983 — Hansen, Curt vs Schneider, Lars-Ake — 1/2-1/2 — Esbjerg DEN
1984 — Salmon, Neil V. vs Tomkins, Ken — 0-1 — NWC April Seattle, WA USA