A43l —
1.d4 c5 2.d5 Nf6 3.Nf3 e6 4.Nc3
Eval: [+0.40]
Les coups candidats
4…exd5 — 46.6% (857 parties)
Ambassadeurs : Armas, Jules (6x), Miezis, Normunds (6x), Liardet, Fabrice (5x), Gurevich, Dmitry (4x), Veingold, Aleksandr (4x), Sadykov, Ramil (4x), Flores Quillas, Diego Saul Rodri (4x), Lerner, Konstantin Z (3x)
4…d6 — 26.3% (483 parties)
Ambassadeurs : Szalanczi, Emil (11x), Levitina, Irina (4x), Pasztor, Ferenc (3x), Andrianov, Nikolai (2x), Perenyi, Bela (2x), Garcia Palermo, Carlos Horacio (2x), Quinteros, Miguel A. (2x), Agzamov, Georgy (2x)
4…b5 — 17.3% (319 parties)
Ambassadeurs : Alburt, Lev (6x), Kanovsky, David (6x), Miezis, Normunds (4x), Hebden, Mark L (4x), Kalinitschew, Sergey (3x), Porrasmaa, Timo (3x), Bach, Matthias (3x), Smieszek, Wojciech (3x)
4…Nxd5 — 5.2% (96 parties)
Ambassadeurs : Cramling, Pia (4x), Loeffler, Stefan (2x), Pinski, Jan (2x), De Abreu, Roberto N (2x), Mirzoev, Azer (2x), Fairhurst, William (1x), Friedgood, David (1x), Anastasian, Ashot (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…exd5 4…d6 4…b5 4…Nxd5
<1800 30 43% 37% 7% 3%
1800-2200 562 46% 31% 12% 4%
2200-2600 1073 47% 23% 20% 6%
2600+ 14 71% 14% 7% 7%
Évolution par décennie (% des parties)
Décennie N parties 4…exd5 4…d6 4…b5 4…Nxd5
1910s 1 100%
1920s 2 100%
1930s 3 33% 33%
1950s 2 100%
1960s 5 20% 20% 40% 20%
1970s 10 50% 50%
1980s 147 37% 25% 24% 7%
1990s 332 46% 30% 15% 4%
2000s 574 46% 27% 19% 4%
2010s 626 51% 23% 14% 6%
2020s 137 45% 27% 20% 6%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…exd5 51% 45% ▼ -6.1%
4…d6 23% 27% ▲ +3.5%
4…b5 14% 20% ▲ +6.1%
4…Nxd5 6% 6% -0.4%
Joueurs célèbres
Champions du monde dans cette position
Kasparov, Garry — 2 parties
Karpov, Anatoly — 2 parties
Hou, Yifan — 2 parties
Karpov, Aleksandr — 1 partie
Kramnik, Vladimir — 1 partie
Parties historiques
4…exd5 — 46.6% (857 parties)
1918 — Winter, William vs Griffith, Richard Clewin — 0-1 — Hampstead club ch
1922 — Gruenfeld, Ernst vs Spielmann, Rudolf — 1/2-1/2 — Innsbruck AUT
1926 — Michel, Walter vs Spielmann, Rudolf — 1/2-1/2 — Semmering AUT
1968 — German, Eugenio vs Rooze, Jan — 1/2-1/2 — Lugano olm
1977 — Shereshevski, Mikhail vs Gusev, Yuri S — 1-0 — ?
4…d6 — 26.3% (483 parties)
1931 — Weissgerber, Gerhard vs Rellstab, Ludwig Sr — 1-0 — Saarbruecken
1955 — Bauza, Lorenzo vs Wexler, Bernardo — 1-0 — Mar del Plata ARG
1957 — Skuja Roberts vs Zilber, Israel — 0-1 — Minsk BLR
1969 — Shaw, Terrey I vs De Castro, Edgar — 1-0 — Singapore SIN
1972 — Selick, Paul vs Smook, Roger — 1-0 — Canada
4…b5 — 17.3% (319 parties)
1936 — Chekhover, Vitaly vs Alatortsev, Vladimir N. — 1-0 — Leningrad RUS
1962 — Marthaler, Otto vs Contedini, Ennio — 1/2-1/2 — Lugano SUI
1969 — Rakic, Tomislav vs Messing, Hanna — 1-0 — Yugoslavia
1980 — Cifuentes Parada, Roberto vs Velasquez Ojeda, Cesar — 1/2-1/2 — Santiago de Chile
1980 — Piarnpuu, Leili vs Voronova, Tatiana — 1/2-1/2 — Jurmala LAT
4…Nxd5 — 5.2% (96 parties)
1968 — Fairhurst, William vs Friedgood, David — 1/2-1/2 — Lugano olm
1980 — Marovic, Ante vs Alburt, Lev — 1-0 — La Valetta
1980 — Backwinkel, Paul vs Lau, Ralf — 1-0 — Brilon
1982 — Stean, Michael F vs Sax, Gyula — 0-1 — Smederevska Palanka
1984 — Tibensky, Robert vs Ftacnik, Lubomir — 1/2-1/2 — Sumperk