A44q — Czech
1.d4 c5 2.d5 e5 3.e4 d6 4.Nc3
Eval: [+1.33]
Les coups candidats
Ambassadeurs : Piesik, Piotr (21x), Kosanovic, Goran A (18x), Ivanovic, Bozidar (15x), Moravec, Michal (14x), Hidegh, Eszter (12x), Daudzvardis, Janis (11x), Arkell, Keith C (11x), Vokac, Marek (10x)
Ambassadeurs : Rahls, Peter (25x), Rashkovsky, Nukhim N (7x), Kosanski, Stanko (7x), Ostojic, Predrag (6x), Litz, Knut (6x), Shchukin, Dmitry (6x), Terreaux, Gilles (5x), Gasztonyi, Endre (4x)
Ambassadeurs : Gaprindashvili, Nona (11x), Kosikov, Andrey (7x), Chernyshov, Konstantin (6x), Tkachuk, Konstantyn (6x), Qalagashvili, Pridon (5x), Asilkefeli, Metin (4x), Stahlberg, Gideon (3x), Hasenfuss, Wolfgang (3x)
Ambassadeurs : Auchenberg, Per (3x), Chavarro, Hugo (3x), Boschetti, Claudio (3x), Camara, Helder (2x), Brameyer, Hermann (2x), Bellon Lopez, Juan Manuel (2x), Bellin, Jana M (2x), Ubilava, Elizbar (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…Be7 4…a6 4…g6 4…Nf6
<1800 40 32% 18% 18% 12%
1800-2200 1079 41% 21% 18% 10%
2200-2600 1829 51% 24% 14% 6%
2600+ 6 83% 17%
Évolution par décennie (% des parties)
Décennie N parties 4…Be7 4…a6 4…g6 4…Nf6
1900s 1 100%
1920s 5 20%
1930s 28 14% 25% 36% 14%
1940s 4 25% 25% 25%
1950s 24 33% 29% 8%
1960s 76 17% 32% 34% 4%
1970s 67 39% 12% 21% 10%
1980s 194 38% 34% 15% 4%
1990s 754 44% 25% 16% 7%
2000s 1177 46% 25% 16% 6%
2010s 1010 46% 21% 15% 11%
2020s 165 50% 18% 11% 15%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…Be7 46% 50% ▲ +3.6%
4…a6 21% 18% ▼ -3.9%
4…g6 15% 11% ▼ -3.9%
4…Nf6 11% 15% ▲ +3.5%
Joueurs célèbres
Champions du monde dans cette position
Alekhine, Alexander — 6 parties
Karpov, Anatoly — 2 parties
Euwe, Max — 1 partie
Botvinnik, Mikhail — 1 partie
Smyslov, Vladimir — 1 partie
Ding, Liren — 1 partie
Parties historiques
4…Be7 — 43.8% (1534 parties)
1926 — Alekhine, Alexander vs Tartakower, Savielly — 1-0 — Dresden GER
1932 — Alekhine, Alexander vs Avilles-Sorales — 0-1 — sim.Mexico City
1934 — Asztalos, Lajos vs Drezga, T. — 1/2-1/2 — Maribor
1935 — Alekhine, Alexander vs Perello allies — 1-0 — Palma de Majorca ESP
1935 — Alekhine, Alexander vs Perello 3 players — 1-0 — Palma de Majorca ESP
4…a6 — 23.8% (834 parties)
1934 — Gruenfeld, Ernst vs Palda, Karl — 1-0 — Klosterneuburg
1934 — Euwe, Max vs Alekhine, Alexander — 1/2-1/2 — NED
1937 — Makogonov, Vladimir vs Kasparian, Genrikh — 1-0 — Baku AZE
1937 — Makogonov, Vladimir vs Kasparian, Genrikh — 1-0 — Baku ch
1937 — Prokop, Fabian vs Pelikan, Jan — 1-0 — Prague CZE
4…g6 — 16.2% (568 parties)
1902 — Von Scheve, Theodor vs Agnivesh Albin — 0-1 — Monte Carlo MNC
1931 — Sanz Aguado, Jose vs Hasenfuss, Wolfgang — 0-1 — Prague CZE
1931 — Lundin, Erik vs Hasenfuss, Wolfgang — 1-0 — Praag olm
1933 — Ahues, Carl vs Elstner, Rudolf — 1-0 — Berlin GER
1934 — Riumin, Nikolai vs Rabinovich, Ilya Mar — 1-0 — Leningrad ch-URS
4…Nf6 — 8.0% (281 parties)
1935 — Goglidze, Viktor vs Chekhover, Vitaly — 1-0 — Moskou
1937 — Budo, Alexander Semenovich vs Panov, Vasily — 0-1 — Tbilisi ch-URS
1938 — Vidmar Milan vs Kostic, Boris — 1/2-1/2 — Ljubljana
1939 — Mueller von Blumencron, Heiko vs Engels, Ludwig — 1-0 — Vienna AUT
1947 — Drescher, Hans vs Bogoljubow, Efim — 1-0 — Hanau