E00o — Catalan:
1.d4 Nf6 2.c4 e6 3.g3 d5 4.Nf3
Eval: [+0.11]
Les coups candidats
Ambassadeurs : Kozul, Zdenko (61x), Beliavsky, Alexander G (54x), Konopka, Michal (44x), Wosch, Arkadiusz (43x), Ftacnik, Lubomir (41x), Rawlings, Alan J C (37x), Veingold, Aleksandr (36x), Wojtkiewicz, Aleksander (35x)
Ambassadeurs : Rawlings, Alan J C (73x), Sveshnikov, Evgeny (72x), Grammatica, Andrea (52x), Andersson, Ulf (51x), Inkiov, Ventzislav (49x), Beliavsky, Alexander G (48x), Ilincic, Zlatko (46x), Deforel, Jorge Eduardo (46x)
Ambassadeurs : Salzmann, Stefan (68x), Burmeister, Ferdinand (62x), Gelfand, Boris (61x), Pogonina, Natalija (55x), Fridman, Daniel (52x), Sargissian, Gabriel (49x), Cheparinov, Ivan (40x), Grabarczyk, Miroslaw (39x)
Ambassadeurs : Volodin, Viktor (12x), Raetsky, Alexander (9x), Wojtkiewicz, Aleksander (9x), Tratar, Marko (8x), Jablonicky, Frantisek (8x), Heinig, Wolfram, Dr. (7x), Lieb, Harald (7x), Spacek, Oliver (6x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…Be7 4…dxc4 4…Bb4+ 4…c6
<1800 1970 30% 17% 15% 14%
1800-2200 25168 35% 24% 18% 11%
2200-2600 44053 32% 32% 27% 4%
2600+ 3721 32% 28% 37% 0%
Évolution par décennie (% des parties)
Décennie N parties 4…Be7 4…dxc4 4…Bb4+ 4…c6
10s 1 100%
1920s 2 50%
1930s 55 20% 35% 2% 13%
1940s 155 29% 41% 5% 7%
1950s 193 26% 42% 3% 12%
1960s 199 33% 41% 5% 4%
1970s 551 40% 32% 4% 6%
1980s 2277 41% 35% 9% 5%
1990s 5901 40% 24% 9% 13%
2000s 13782 35% 30% 12% 11%
2010s 38274 31% 30% 25% 7%
2020s 20031 31% 25% 35% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…Be7 31% 31% +0.2%
4…dxc4 30% 25% ▼ -4.5%
4…Bb4+ 25% 35% ▲ +10.6%
4…c6 7% 3% ▼ -3.9%
Joueurs célèbres
Champions du monde dans cette position
Alekhine, Alexander — 10 parties
Smyslov, Vladimir — 10 parties
Tal, Mikhail — 10 parties
Karpov, Aleksandr — 10 parties
Karpov, Anatoly — 10 parties
Anand, Viswanathan — 10 parties
Kramnik, Vladimir — 10 parties
Carlsen, Magnus — 10 parties
Hou, Yifan — 10 parties
Ju, Wenjun — 10 parties
Ding, Liren — 10 parties
Gukesh D — 10 parties
Kasparov, Garry — 9 parties
Botvinnik, Mikhail — 8 parties
Euwe, Max — 2 parties
Parties historiques
4…Be7 — 32.7% (26620 parties)
1927 — Prokes, Ladislav vs Wagner, Heinrich — 0-1 — London ENG
1935 — Alatortsev, Vladimir N. vs Bohatirchuk, Fedor — 1/2-1/2 — ?
1935 — Alatortsev, Vladimir N. vs Bohatyrchuk, Fedir Parfenovych — 1/2-1/2 — Moscow RUS
1937 — Keres, Paul Petrovich vs Gudmundsson, Jon Jorundur — 1-0 — Stockholm SWE
1937 — Flohr, Salo vs Ragozin, Viacheslav — 1/2-1/2 — Semmering AUT
4…dxc4 — 28.3% (23052 parties)
1937 — Petrov, Vladimir (ENG) vs Fine, Reuben — 1/2-1/2 — Semmering AUT
1937 — Koshnitsky, Gregory vs Purdy, Cecil J S — 1/2-1/2 — corr Australia
1937 — Alekhine, Alexander vs Euwe, Max — 1-0 — Amsterdam wch-m
1937 — Flohr, Salo vs Fine, Richard Alvaro Adrien — 1/2-1/2 — Kemeri LAT
1938 — Belchikov, Nikolay Ivanovich vs Grechkin, Dmitry M — 0-1 — Gorky
4…Bb4+ — 23.1% (18817 parties)
11 — Foulds, Edmund vs Goodman, Conrad — 1/2-1/2 — IECC
1938 — Brueder, M. vs Tartakower, Savielly — 0-1 — Ljubljana
1941 — Fine, Reuben vs Steiner, Herman — 1-0 — Saint Louis
1941 — Fine, Reuben vs Lasker, Edward — 1-0 — Hamilton
1944 — Fine, Reuben vs Denker, Arnold S — 1-0 — New York, NY USA
4…c6 — 6.8% (5548 parties)
1937 — Opocensky, Karel vs Zinner, Emil — 0-1 — Prague CZE
1937 — Fine, Reuben vs Ragozin, Viacheslav — 1/2-1/2 — Semmering AUT
1937 — Flohr, Salo vs Steiner, Andreas — 1/2-1/2 — Kemeri LAT
1937 — Opocensky, Karel vs Prokop, Frantisek — 0-1 — Prague CZE
1937 — Flohr, Salo vs Steiner, Endre — 1/2-1/2 — Kemeri LAT