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A44m — Czech
1.d4 c5 2.d5 e5 3.e4 d6
Eval: [+1.28]
Les coups candidats
Ambassadeurs : Rahls, Peter (32x), Ivanovic, Bozidar (19x), Kosanovic, Goran A (18x), Piesik, Piotr (12x), Vokac, Marek (11x), Arkell, Keith C (11x), Moravec, Michal (10x), Brandics, Jozsef (8x)
Ambassadeurs : Vaisman, Volodia (6x), Arkell, Keith C (5x), Ostojic, Predrag (4x), Fekete, Albert (4x), Taylor, Dale C (4x), Goltseva, Ekaterina (4x), Ciocaltea, Victor (3x), Gross, Stefan (3x)
Ambassadeurs : Rahls, Peter (8x), Achenbach, Manfred (8x), Grivas, Efstratios (6x), Seletsky, Grigory (5x), Woloch, Oskar (5x), Siebrecht, Sebastian (4x), Vaisman, Volodia (4x), Mateuta, Gabriel (4x)
Ambassadeurs : Vokac, Marek (4x), Scarella, Enrique Alejandro (3x), Arkell, Keith C (3x), Balala, Anton (3x), Glek, Igor (2x), Vreeken, Corry (2x), Fedorowicz, John (2x), Cooper, John G (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4.Nc3 4.c4 4.Bb5+ 4.Nf3
<1800 91 30% 31% 11% 10%
1800-2200 1990 44% 17% 14% 8%
2200-2600 2692 58% 10% 12% 6%
2600+ 10 60% 10% 10% 10%
Évolution par décennie (% des parties)
Décennie N parties 4.Nc3 4.c4 4.Bb5+ 4.Nf3
1840s 1
1900s 1 100%
1910s 2 50%
1920s 4 50% 50%
1930s 65 35% 5%
1940s 20 15% 15%
1950s 68 34% 13% 1% 3%
1960s 152 41% 20% 1% 3%
1970s 131 45% 21% 2% 2%
1980s 292 55% 12% 4% 9%
1990s 1257 52% 14% 9% 8%
2000s 1859 54% 13% 10% 7%
2010s 1673 48% 14% 18% 6%
2020s 279 44% 11% 20% 5%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4.Nc3 48% 44% ▼ -3.6%
4.c4 14% 11% ▼ -2.2%
4.Bb5+ 18% 20% ▲ +2.1%
4.Nf3 6% 5% ▼ -1.4%
Joueurs célèbres
Champions du monde dans cette position
Alekhine, Alexander — 8 parties
Karpov, Anatoly — 2 parties
Euwe, Max — 1 partie
Botvinnik, Mikhail — 1 partie
Smyslov, Vladimir — 1 partie
Kramnik, Vladimir — 1 partie
Ding, Liren — 1 partie
Parties historiques
4.Nc3 — 50.2% (2915 parties)
1902 — Von Scheve, Theodor vs Agnivesh Albin — 0-1 — Monte Carlo MNC
1920 — Kostic, Boris vs Spielmann, Rudolf — 1-0 — Goteborg SWE
1920 — Kostic, Barbara vs Spielmann, Rudolf — 1-0 — Goteborg SWE
1931 — Sanz Aguado, Jose vs Hasenfuss, Wolfgang — 0-1 — Prague CZE
1931 — Lundin, Erik vs Hasenfuss, Wolfgang — 1-0 — Praag olm
4.c4 — 13.8% (800 parties)
1912 — Folch Brach, Jordi vs Wegemund, Hubert — 0-1 — Breslau GER
1925 — Waechter, Paul vs Richter, Kurt P — 1-0 — Berlin GER
1929 — Rochlin vs Alatortsev, Vladimir N. — 1-0 — Leningrad RUS
1935 — Danielsson, Gosta vs Hasenfuss, Wolfgang — 1-0 — Warsaw POL
1935 — Danielsson, Gosta vs Hasenfuss, Volfgangs — 1-0 — ?
4.Bb5+ — 11.6% (676 parties)
1959 — Saigin, Ian vs Konovalov, Aleksandr — 0-1 — Moscow RUS
1961 — Firth, Malcolm vs Havansi, Erkki E.T. — 1/2-1/2 — Helsinki FIN
1964 — Thiellement, Andre vs Rometti, Nicola Barbatto — 1-0 — Montpellier FRA
1972 — Thal, Olaf vs Baersch Andreas — 1-0 — Goerlitz
1979 — Kochyev, Alexander vs Campioli, Giuseppe — 1-0 — Reggio Emilia ITA
4.Nf3 — 6.7% (389 parties)
1953 — Wexler, Bernardo vs Trifunovic, Petar — 1/2-1/2 — Mar del Plata ARG
1959 — Volpert, Juri vs Nakhimovsky — 1-0 — Moscow RUS
1962 — Kampenuss Peteris vs Mileika, Janis — 1-0 — Riga LAT
1962 — Gutierrez, Albogeo vs Kupka, Slavoj — 0-1 — Marianske Lazne
1964 — Gaya, Lindolfo vs De Souza Mendes, Joao — 1-0 — Rio de Janeiro BRA