A44e — Czech
1.d4 c5 2.d5 e5 3.c4 d6 4.e4
Eval: [+0.93]
Les coups candidats
Ambassadeurs : Rahls, Peter (8x), Kosanovic, Goran A (8x), Brodowski, Piotr (8x), Vaisman, Volodia (6x), Backwinkel, Paul (6x), Arkell, Keith C (6x), Brandics, Jozsef (6x), Ostojic, Predrag (5x)
Ambassadeurs : Nitin, S. (4x), Gaprindashvili, Nona (4x), Paoli, Enrico (3x), Zsinka, Laszlo (3x), Kislinsky, Alexey (3x), Kuci, Blerim (3x), Papadimitriou, Athanasios 46920 (3x), Krajnak, Juraj (3x)
4…Nf6 — 12.3% (268 parties)
Ambassadeurs : Auchenberg, Per (4x), Ciocaltea, Victor (3x), Lagergren, Henry (3x), Engels, Ludwig (2x), Donnelly, Mike J Dr (2x), Thomas, Richard Huw (2x), Vaisman, Volodia (2x), Chaves, Jussara (2x)
4…f5 — 8.2% (180 parties)
Ambassadeurs : Mester, Robert (5x), Chepurnov, Anatoly A (2x), Hoffmann, Werner (2x), Trockmann Rafael (2x), Bince, Rolando (2x), Hagner, Bennet (2x), Duran Reca, Mateo (1x), Alhuay Grau, Dominick Fabricio (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…Be7 4…g6 4…Nf6 4…f5
<1800 78 26% 28% 24% 15%
1800-2200 870 46% 22% 13% 10%
2200-2600 742 61% 22% 7% 2%
2600+ 5 100%
Évolution par décennie (% des parties)
Décennie N parties 4…Be7 4…g6 4…Nf6 4…f5
1910s 1 100%
1920s 8 25% 75%
1930s 5 60% 20% 20%
1940s 5 40% 20% 40%
1950s 14 36% 21% 14%
1960s 71 10% 41% 17% 11%
1970s 65 38% 17% 15% 2%
1980s 104 59% 21% 11% 2%
1990s 494 50% 23% 10% 5%
2000s 707 48% 22% 12% 11%
2010s 617 50% 21% 13% 8%
2020s 91 54% 21% 11% 5%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…Be7 50% 54% ▲ +3.4%
4…g6 21% 21% -0.2%
4…Nf6 13% 11% ▼ -2.5%
4…f5 8% 5% ▼ -2.8%
Joueurs célèbres
Champions du monde dans cette position
Kasparov, Garry — 1 partie
Parties historiques
4…Be7 — 47.6% (1038 parties)
1962 — Incutto, Carlos vs Bazan, Osvaldo — 1/2-1/2 — Buenos Aires ARG
1963 — Boehlig, Heinz, Dr. vs Pietzsch, Wolfgang — 0-1 — Leipzig GER
1963 — Bobotsov, Milko G vs Bilek, Istvan — 1/2-1/2 — Sochi RUS
1965 — Kluger, Gyula vs Gasztonyi, Endre — 1-0 — Gyula HUN
1965 — Ghitescu, Theodor vs Lein, Anatoly — 1/2-1/2 — It Zinnowitz GER
4…g6 — 22.7% (496 parties)
1912 — Folch Brach, Jordi vs Wegemund, Hubert — 0-1 — Breslau GER
1927 — Tackels, Andre vs Colle, Edgar — 0-1 — Brussels BEL
1928 — Borgman vs Batik, Frantisek — 1/2-1/2 — cr.
1935 — Danielsson, Gosta vs Hasenfuss, Wolfgang — 1-0 — Warsaw POL
1935 — Danielsson, Gosta vs Hasenfuss, Volfgangs — 1-0 — ?
4…Nf6 — 12.3% (268 parties)
1938 — Gotti, Marco vs Raizman, Maurice — 0-1 — Nice FRA
1945 — Poliak, Abram vs Simagin, Vladimir — 1-0 — Moscow RUS
1952 — Cruz, Walter vs Engels, Ludwig — 0-1 — Rio de Janeiro BRA
1957 — Rubio Aguado, Fernando vs Engels, Ludwig — 0-1 — Rio de Janeiro BRA
1958 — Buj, Pablo vs Rossetto, Hector — 0-1 — Buenos Aires ARG
4…f5 — 8.2% (180 parties)
1924 — Vajda, Arpad vs Chepurnov, Anatoly A — 0-1 — Paris FRA
1924 — Palau, Luis vs Chepurnov, Anatoly A — 1/2-1/2 — Paris FRA
1925 — Romih, Max vs Savage, Louis — 1-0 — Bromley
1925 — Waechter, Paul vs Richter, Kurt P — 1-0 — Berlin GER
1926 — Duran Reca, Mateo vs Alhuay Grau, Dominick Fabricio — 0-1 — Buenos Aires ch-ARG