A34l — Symmetrical, 3 Knights (1929)
1.c4 c5 2.Nc3 Nf6 3.Nf3 b6
Les coups candidats
4.g3 — 49.5% (1808 parties)
Ambassadeurs : Rajkovic, Dusan (17x), Stangl, Markus (12x), Kudrin, Sergey (10x), Marinkovic, Ivan (10x), Janssen, Ruud (10x), Grooten, Herman (10x), Mannion, Stephen R (9x), Psakhis, Lev (8x)
4.e4 — 25.8% (945 parties)
Ambassadeurs : Kudrin, Sergey (12x), Gurevich, Dmitry (10x), Uhlmann, Wolfgang (10x), Yermolinsky, Alex (9x), Suba, Mihai (9x), Rajkovic, Dusan (9x), Stocek, Jiri (8x), Korchnoi, Viktor (7x)
4.d4 — 13.3% (486 parties)
Ambassadeurs : Gheorghiu, Florin (9x), Milanovic, Danilo (8x), Pogorelov, Ruslan (7x), Schlosser, Philipp (5x), Marinkovic, Ivan (5x), Horvath, Gyula (4x), Wojtkiewicz, Aleksander (4x), Psakhis, Lev (3x)
4.e3 — 10.7% (391 parties)
Ambassadeurs : Kudrin, Sergey (9x), Eingorn, Vereslav S (7x), Speelman, Jon S (6x), Chekhov, Valery A (4x), Frey Beckman, Kenneth (4x), Goldberg, Alexander, Dr. (4x), Rohde, Michael (4x), Arsovic, Zoran (4x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4.g3 4.e4 4.d4 4.e3
<1800 91 53% 22% 13% 11%
1800-2200 857 58% 20% 12% 9%
2200-2600 2450 47% 27% 14% 11%
2600+ 40 28% 42% 12% 18%
Évolution par décennie (% des parties)
Décennie N parties 4.g3 4.e4 4.d4 4.e3
1950s 2 — 100% — —
1960s 2 — 50% 50% —
1970s 107 41% 31% 10% 18%
1980s 514 41% 29% 16% 13%
1990s 734 51% 26% 13% 10%
2000s 1116 49% 26% 14% 10%
2010s 1017 55% 22% 13% 10%
2020s 164 43% 29% 11% 15%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4.g3 55% 43% ▼ -12.4%
4.e4 22% 29% ▲ +7.3%
4.d4 13% 11% ▼ -1.8%
4.e3 10% 15% ▲ +5.7%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 7 parties
Kasparov, Garry — 4 parties
Kramnik, Vladimir — 4 parties
Hou, Yifan — 4 parties
Karpov, Anatoly — 3 parties
Smyslov, Vladimir — 1 partie
Botvinnik, Mikhail — 1 partie
Carlsen, Magnus — 1 partie
Parties historiques
4.g3 — 49.5% (1808 parties)
1970 — Busch, Raimund vs Ophoff, Rigobert — 1/2-1/2 — Moeller Werke
1974 — Octaviano, Patrick Matheus vs Illijin, Neboisa — 1/2-1/2 — Bucharest ROU
1974 — Schmidt, Wlodzimierz vs Lebredo Zaragoitia, Gerardo — 1/2-1/2 — Tbilisi GEO
1974 — Sznapik, Aleksander vs Rashkovsky, Nukhim N — 1/2-1/2 — Sochi RUS
1974 — Tal, Mikhail vs Ljubojevic, Ljubomir — 1/2-1/2 — Belgrade-Moscow
4.e4 — 25.8% (945 parties)
1955 — Miguel, Nahuel vs Reinhardt, Heinrich — 1-0 — Argentina
1959 — Cafferty, Bernard vs Hoad Philip Charles — 1/2-1/2 — ?
1960 — ? vs Berenstein, Alexander — 1-0 — Kiev UKR
1973 — Portisch, Lajos vs Ljubojevic, Ljubomir — 1/2-1/2 — Madrid ESP
1973 — Bosch van Rosenthal, Edzard vs Hartoch, Robert G — 1/2-1/2 — Leeuwarden ch-NED
4.d4 — 13.3% (486 parties)
1967 — Smyslov, Vladimir vs Botvinnik, Mikhail — 1/2-1/2 — Moscow RUS
1973 — Panno, Oscar vs Smyslov, Vasily — 1/2-1/2 — Petropolis BRA
1974 — Jansson, Borje vs Sanguinetti, Raul — 1/2-1/2 — Nice olm fin-A
1976 — Kaldor, Avraham vs Ungureanu, Emil — 1/2-1/2 — Netanya ISR
1976 — Robatsch, Karl vs Andersson, Ulf — 0-1 — Haifa ISR
4.e3 — 10.7% (391 parties)
1973 — Myyra, Markku vs Pajarinen, Sami — 0-1 — ?
1974 — Frey Beckman, Kenneth vs Campos Moreno, Javier B. — 1-0 — ?
1975 — Vadasz, Laszlo vs Ribli, Zoltan — 1/2-1/2 — HUN
1975 — Keene, Raymond D vs Andersson, Ulf — 1/2-1/2 — Rovinj-Zagreb
1976 — Vaganian, Rafael A vs Ornstein, Axel — 1/2-1/2 — Erevan ARM