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A31d — Symmetrical, Two Knights
1.c4 c5 2.Nf3 Nf6 3.d4 cxd4
Les coups candidats
Ambassadeurs : Gheorghiu, Florin (39x), Rashkovsky, Nukhim N (32x), Raetsky, Alexander (29x), Hausner, Ivan (25x), Pomar Salamanca, Arturo (24x), Alburt, Lev (24x), Lesiege, Alexandre (23x), Quinteros, Miguel A. (22x)
4.Qxd4 — 0.6% (97 parties)
Ambassadeurs : Wade, Robert G (1x), Potter, Albert John (1x), Gouret, Thierry (1x), Conquest, Stuart C (1x), Herrera, Laura (1x), Hausner, Alfreda (1x), Bebaker Ely Cheikhe (1x), Correa, Aron Antunes (1x)
4.g3 — 0.1% (14 parties)
Ambassadeurs : Chenoukh, Nabila (1x), Gatine, Aurelia (1x), Garcia Garrido, Enric (1x), Narciso Dublan, Marc (1x), Baloutsou, Vasiliki (1x), Kondou, Eva (1x), Kota, Istvan (1x), Csoma, Robert (1x)
4.e3 — 0.1% (9 parties)
Ambassadeurs : Papesh, C. (1x), Sprago, J. (1x), Van Zon, Tim (1x), Duijn, Rob (1x), Coetzer, Lourens (1x), Michael, Thomas Cartmell (1x), Kuenzel, Ulrich (1x), Mackie, John J (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4.Nxd4 4.Qxd4 4.g3 4.e3
<1800 793 98% 2% 0%
1800-2200 6350 99% 1% 0% 0%
2200-2600 6369 100% 0% 0%
2600+ 207 100%
Évolution par décennie (% des parties)
Décennie N parties 4.Nxd4 4.Qxd4 4.g3 4.e3
1950s 110 100%
1960s 203 100% 0%
1970s 786 100% 0% 0%
1980s 1235 100% 0% 0%
1990s 3015 99% 1% 0% 0%
2000s 4385 99% 1% 0% 0%
2010s 5189 99% 1% 0%
2020s 1091 99% 1% 0%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4.Nxd4 99% 99% +0.1%
4.Qxd4 1% 1% -0.1%
4.g3 0% 0% -0.0%
4.e3 0% 0% +0.0%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 10 parties
Kasparov, Garry — 10 parties
Carlsen, Magnus — 8 parties
Kramnik, Vladimir — 6 parties
Karpov, Anatoly — 5 parties
Hou, Yifan — 5 parties
Ju, Wenjun — 5 parties
Smyslov, Vladimir — 2 parties
Anand, Viswanathan — 2 parties
Botvinnik, Mikhail — 1 partie
Parties historiques
4.Nxd4 — 99.2% (15881 parties)
1950 — Decker, Arnold Sheldon vs Rabar, Braslav — 1-0 — telex
1950 — Hogenauer, N.J vs Muir, Walter G — 0-1 — Golden Knights 5051
1950 — Alatortsev, Vladimir N. vs Kopilov, Nikolay Georgiyevich — 1-0 — Leningrad RUS
1950 — Werner, Stephan vs Osterwald, Karl Heinz — 1-0 — ?
1951 — Muller, Hans vs Eugenio, Sarah De Oliveira — 1-0 — Venezia ITA-AUT
4.Qxd4 — 0.6% (97 parties)
1967 — Wade, Robert G vs Potter, Albert John — 0-1 — Roanoke City
1976 — Herrera, Laura vs Hausner, Alfreda — 1/2-1/2 — Haifa ISR
1985 — Gouret, Thierry vs Conquest, Stuart C — 0-1 — Guernsey GCI
1988 — Bebaker Ely Cheikhe vs Correa, Aron Antunes — 0-1 — Thessaloniki GRE
1990 — Clever, Hans-Hermann vs Kopec, Mariusz — 0-1 — ?
4.g3 — 0.1% (14 parties)
1988 — Chenoukh, Nabila vs Gatine, Aurelia — 0-1 — Timisoara
1991 — Kota, Istvan vs Csoma, Robert — 1/2-1/2 — ?
1992 — Johansson, Jan vs Fant, Goran — 0-1 — Stockholm SWE
1996 — Baloutsou, Vasiliki vs Kondou, Eva — 0-1 — Volos
1997 — Garcia Garrido, Enric vs Narciso Dublan, Marc — 0-1 — La Pobla de Lillet
4.e3 — 0.1% (9 parties)
1972 — Papesh, C. vs Sprago, J. — 0-1 — Berkeley
1994 — Van Zon, Tim vs Duijn, Rob — 0-1 — Haarlem NED
1999 — Coetzer, Lourens vs Michael, Thomas Cartmell — 0-1 — ?
2000 — Kuenzel, Ulrich vs Mackie, John J — 1/2-1/2 — ?
2004 — De Mayolas, Flavio vs Arias, Juan Carlos — 0-1 — Ushuaia