E21c - 4…c5 - Three Knights (1927)

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E21c — Three Knights
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3 c5
Les coups candidats
Ambassadeurs : Stocek, Jiri (36x), Bacrot, Etienne (32x), Chatalbashev, Boris (28x), Ubilava, Elizbar (27x), Moiseenko, Alexander (27x), Farago, Ivan (25x), Gaprindashvili, Nona (23x), Zvjaginsev, Vadim (20x)
Ambassadeurs : Borisenko, Georgy K (32x), Pinter, Jozsef (23x), Korchnoi, Viktor (13x), Kolanek, Roman (13x), Pachman, Ludek (8x), Taimanov, Mark (8x), Wade, Robert G (8x), Osnos, Viatcheslav (7x)
5.a3 — 4.4% (252 parties)
Ambassadeurs : Botvinnik, Mikhail (2x), Schroecker, Maria-Luise (2x), Vetter, Udo (2x), Lukasevicius, Petras (2x), Stocek, Jiri (2x), Ryska, Jirí (2x), Grigoriev, A. (1x), Petrosian, Tigran A. (1x)
5.d5 — 3.4% (198 parties)
Ambassadeurs : Kluger, Gyula (6x), Horvath, Peter (4x), Antoshin, Vladimir S (3x), Pachman, Ludek (3x), Borisenko, Georgy K (3x), Korchnoi, Viktor (3x), Paasikangas, Johanna (3x), Ravnik, Ivan (3x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5.g3 5.e3 5.a3 5.d5
<1800 126 18% 43% 10% 5%
1800-2200 1234 34% 43% 8% 4%
2200-2600 2950 67% 24% 1% 2%
2600+ 360 91% 8% — 0%
Évolution par décennie (% des parties)
Décennie N parties 5.g3 5.e3 5.a3 5.d5
1910s 1 — 100% — —
1920s 7 29% 43% — —
1930s 8 — 50% 38% —
1940s 6 — 33% 33% —
1950s 89 — 73% 8% 11%
1960s 161 2% 77% 2% 15%
1970s 135 18% 65% 3% 6%
1980s 587 68% 23% 2% 2%
1990s 1019 53% 27% 5% 4%
2000s 1841 56% 28% 4% 3%
2010s 1691 53% 33% 5% 3%
2020s 222 52% 31% 5% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5.g3 53% 52% ▼ -0.6%
5.e3 33% 31% ▼ -1.5%
5.a3 5% 5% ▲ +0.9%
5.d5 3% 3% -0.3%
Joueurs célèbres
Champions du monde dans cette position
Kasparov, Garry — 10 parties
Karpov, Anatoly — 10 parties
Anand, Viswanathan — 10 parties
Carlsen, Magnus — 10 parties
Kramnik, Vladimir — 9 parties
Tal, Mikhail — 7 parties
Karpov, Aleksandr — 7 parties
Botvinnik, Mikhail — 3 parties
Hou, Yifan — 2 parties
Ju, Wenjun — 2 parties
Lasker, Emanuel — 1 partie
Euwe, Max — 1 partie
Smyslov, Vladimir — 1 partie
Gukesh D — 1 partie
Parties historiques
5.g3 — 52.4% (3020 parties)
1921 — Liberman Rubinstein, Joseph vs Maroczi — 1-0 — Lancashire
1922 — Rubinstein, Akiba vs Maroczy, Geza — 1-0 — Londen
1968 — De Carbonnel, Heinz vs Sanakoev, Grigory — 1/2-1/2 — 6th CC World Ch Final 6871
1968 — Liptay, Laszlo Dr. vs Dely, Peter — 1/2-1/2 — HUN
1968 — Liptay, Laszlo Dr. vs Janata, Michael — 1/2-1/2 — Moscow RUS
5.e3 — 31.7% (1827 parties)
1919 — Maier, Gennadi vs Lasker, Emanuel — 1/2-1/2 — sim Munich
1920 — Johner, Paul vs Berndtsson, Karl — 1-0 — Goteborg SWE
1920 — Euwe, Max vs Berndtsson, Karl — 1-0 — Goteborg SWE
1928 — Saemisch, Friedrich vs Steiner, Lajos — 1-0 — Berlin GER
1931 — Michlo, Joseph vs Steiner, Endre — 0-1 — Budapest HUN
5.a3 — 4.4% (252 parties)
1934 — Dyner, Israel Boruch vs Dreyer, Martin P — 1-0 — ?
1938 — Kouzmine, Karawaeff vs Znosko-Borovsky, Eugene — 0-1 — Paris FRA
1939 — Botvinnik, Mikhail vs Kan, Ilya A — 1-0 — Leningrad ch-URS
1945 — Grigoriev, A. vs Petrosian, Tigran A. — 0-1 — Tbilisi Tbilisi GEO
1945 — Puc, Stojan vs Pachman, Ludek — 1/2-1/2 — Ljubljana
5.d5 — 3.4% (198 parties)
1954 — Castillo Larenas, Mariano vs Shocron, Ruben — 1/2-1/2 — Mar del Plata ARG
1956 — Olivera, Alfredo vs Bauza, Lorenzo — 0-1 — Montevideo URU
1957 — Szabo, Laszlo vs Donner, Jan-Hein — 1-0 — Wageningen zt
1957 — Tolush, Alexander V vs Nedeljkovic, Srecko M — 1/2-1/2 — Leningrad RUS
1957 — Korchnoi, Viktor vs Nedeljkovic, Srecko M — 1-0 — Vienna AUT