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A31g — Symmetrical Two Knights
1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4
Eval: [+0.12]
Les coups candidats
Ambassadeurs : Bellon Lopez, Juan Manuel (17x), Raetsky, Alexander (16x), Burnett, Jim (12x), Lesiege, Alexandre (11x), Heinig, Wolfram, Dr. (11x), Ritter, Uwe (9x), Rogers, Ian (9x), Kovacs, Arthur Dr. (8x)
Ambassadeurs : Matulovic, Milan (8x), Gheorghiu, Florin (8x), Geller, Efim P. (7x), Raetsky, Alexander (6x), Plat, Vojtech (6x), Vasiukov, Evgeni (5x), Janosevic, Dragoljub (5x), Browne, Walter Shawn (5x)
Ambassadeurs : Rashkovsky, Nukhim N (17x), Quinteros, Miguel A. (17x), Alburt, Lev (14x), Doda, Zbigniew (11x), Szmetan, Jorge (11x), Adamski, Jan (11x), Knaak, Rainer (10x), Gheorghiu, Florin (9x)
Ambassadeurs : Gheorghiu, Florin (8x), Ljubojevic, Ljubomir (7x), Arsovic, Zoran (7x), Kasparov, Sergey (7x), Hausner, Ivan (7x), Debarnot, Roberto (6x), Sergeev, Vladimir (6x), Erdelyi, Tamas Dr (6x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…e5 4…Nc6 4…e6 4…b6
<1800 372 38% 28% 9% 3%
1800-2200 5464 38% 26% 10% 8%
2200-2600 6571 35% 20% 18% 15%
2600+ 235 14% 32% 34% 7%
Évolution par décennie (% des parties)
Décennie N parties 4…e5 4…Nc6 4…e6 4…b6
1920s 21 5% 19% 10% 33%
1930s 46 2% 46% 13% 4%
1940s 30 7% 37% 20% 3%
1950s 110 5% 38% 32% 3%
1960s 202 3% 40% 34% 4%
1970s 781 7% 21% 44% 10%
1980s 1241 35% 13% 27% 14%
1990s 3005 42% 18% 15% 10%
2000s 4361 39% 22% 12% 10%
2010s 5160 35% 27% 11% 11%
2020s 886 35% 31% 13% 8%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…e5 35% 35% -0.3%
4…Nc6 27% 31% ▲ +3.5%
4…e6 11% 13% ▲ +1.8%
4…b6 11% 8% ▼ -2.6%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 10 parties
Kasparov, Garry — 10 parties
Smyslov, Vladimir — 9 parties
Carlsen, Magnus — 8 parties
Alekhine, Alexander — 7 parties
Kramnik, Vladimir — 6 parties
Hou, Yifan — 5 parties
Ju, Wenjun — 5 parties
Karpov, Aleksandr — 4 parties
Euwe, Max — 3 parties
Anand, Viswanathan — 2 parties
Karpov, Anatoly — 1 partie
Botvinnik, Mikhail — 1 partie
Parties historiques
4…e5 — 35.4% (5604 parties)
1929 — Capablanca, Jose vs De La Torre Huertas, Carlos — 1-0 — Barcelona, Spain
1937 — Tims Collins, Francis George vs Kitto, Francis E A — 1-0 — City of London CC
1945 — Mugridge, Donald vs Fine, Reuben — 0-1 — New York, NY USA
1948 — Konstantinopolsky, Alexander vs Taimanov, Mark — 1/2-1/2 — Moskou ch-URS
1954 — Scherbakoff, Georges vs Czerniak, Moshe — 1/2-1/2 — Paris FRA
4…Nc6 — 23.0% (3648 parties)
1924 — Michell, Reginald vs Blake, Joseph — 1/2-1/2 — Southport ENG
1925 — De La Torre Huertas, Carlos vs Alekhine, Alexander — 1/2-1/2 — Baden-Baden GER
1927 — Sergieev, Alexander vs Kubbel, Arvid — 1/2-1/2 — Leningrad tt
1927 — Schmitt, Ludwig vs Machate, Gottlieb — 1-0 — Gleiwitz
1930 — Rejfir, Josef vs Prokop, Frantisek — 1/2-1/2 — Mnichovo Hradiste
4…e6 — 15.7% (2488 parties)
1927 — Reti, Richard vs Norman, George — 1/2-1/2 — Hastings ENG
1928 — Alamo Romano, Juan Francisco vs Palau, Luis — 1/2-1/2 — Mar del Plata ARG
1930 — Nimzowitsch, Aron vs Rubinstein, Akiba — 0-1 — San Remo ITA
1931 — Alekhine, Alexander vs Steiner, Endre — 1-0 — Praag olm
1933 — Kunert, Helmut vs Spielmann, Rudolf — 1-0 — Ebensee
4…b6 — 10.5% (1657 parties)
1925 — Alekhine, Alexander vs Saemisch, Friedrich — 1-0 — Baden-Baden GER
1925 — Alekhine, Alexander vs Saemisch, Friedrich — 1-0 — Baden-Baden GER
1928 — Blanco Cruz, Wara vs Batista Grau, Ricardo — 1/2-1/2 — Mar del Plata ARG
1928 — Kmoch, Hans vs Steiner, Endre — 1/2-1/2 — Wenen Trebitsch
1928 — Engel, Jindrich vs Steiner, Endre — 1-0 — Trencianske Teplice SVK