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A29a — Four Knights
1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3
Eval: [+0.24]
Les coups candidats
Ambassadeurs : Zielinski, Sergej (173x), Belchev, Branimir Petrov (75x), Morley, Paul (66x), Szerlak, Andrzej (66x), Coyne, David W. (50x), Uhlmann, Wolfgang (45x), Beck, Georges (41x), Nývlt, Zdenek (41x)
Ambassadeurs : Zielinski, Sergej (95x), Uhlmann, Wolfgang (52x), Belchev, Branimir Petrov (49x), Portych, Václav (46x), Beck, Georges (34x), Morley, Paul (33x), Tsenkov, Ljubomir (28x), Korchnoi, Viktor (24x)
Ambassadeurs : Vujadinovic, Milan (24x), Alvebring, Martin (22x), Fabri Peter (20x), Sanchez Carol, Jesus (20x), McKlveen, Paul (20x), Loeschnauer, Ruediger (19x), Cervinka Rudolf (19x), Beck, Georges (17x)
4…Nd4 — 4.1% (928 parties)
Ambassadeurs : Gelfand, Boris (16x), Aronian, Levon (16x), Uhlmann, Wolfgang (12x), Svidler, Peter (12x), Van Wely, Loek (10x), Romanov, Egor (10x), Timman, Jan H (8x), Tomashevsky, Evgeny (8x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…d5 4…Bb4 4…Bc5 4…Nd4
<1800 770 38% 24% 24% 2%
1800-2200 6794 44% 30% 13% 2%
2200-2600 8993 47% 33% 10% 6%
2600+ 1046 38% 34% 8% 15%
Évolution par décennie (% des parties)
Décennie N parties 4…d5 4…Bb4 4…Bc5 4…Nd4
1860s 1
1910s 3 67%
1920s 13 23% 38%
1930s 34 53% 6% 12%
1940s 27 59% 7% 15%
1950s 50 40% 4% 28%
1960s 114 48% 17% 11%
1970s 697 18% 55% 10% 6%
1980s 1197 36% 41% 7% 5%
1990s 3553 34% 34% 17% 2%
2000s 6136 37% 33% 16% 5%
2010s 8728 48% 30% 12% 4%
2020s 2323 60% 27% 6% 4%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…d5 48% 60% ▲ +11.7%
4…Bb4 30% 27% ▼ -2.6%
4…Bc5 12% 6% ▼ -5.5%
4…Nd4 4% 4% +0.1%
Joueurs célèbres
Champions du monde dans cette position
Smyslov, Vladimir — 10 parties
Tal, Mikhail — 10 parties
Karpov, Anatoly — 10 parties
Karpov, Aleksandr — 10 parties
Kasparov, Garry — 10 parties
Kramnik, Vladimir — 10 parties
Anand, Viswanathan — 10 parties
Carlsen, Magnus — 10 parties
Ding, Liren — 10 parties
Ju, Wenjun — 3 parties
Botvinnik, Mikhail — 2 parties
Gukesh D — 2 parties
Steinitz, Wilhelm — 1 partie
Alekhine, Alexander — 1 partie
Hou, Yifan — 1 partie
Parties historiques
4…d5 — 42.5% (9724 parties)
1914 — Carls, Carl vs Flamberg, Alexander — 1/2-1/2 — Mannheim GER
1917 — Bogoljubow, Efim vs Selezniev, Alexey — 1/2-1/2 — Triberg m
1926 — Ostrovsky, Pavel vs Ravinsky, Grigory — 1-0 — Leningrad RUS
1928 — Carls, Carl vs Cova Krause, Juan Pablo — 1-0 — Hamburg GER
1928 — Capablanca, Jose vs Cuero Reid, Maximo Javier — 0-1 — Imperial CC, London ENG
4…Bb4 — 32.1% (7341 parties)
1935 — Kashdan, Isaac vs Belson, John Harold — 1-0 — Milwaukee, WI USA
1938 — Hanauer, Anthony vs Reshevsky, Samuel — 0-1 — New York, NY USA
1940 — Zíta, František vs Hromadka, Karel — 0-1 — Rakovnik
1949 — Piskov, Kamen Penev vs Dimitrov Krastev, Krastjo — 0-1 — Sofia BUL
1959 — Petrosian, Tigran V. vs Keres, Paul Petrovich — 1/2-1/2 — Bled/Zagreb/Belgrade
4…Bc5 — 12.8% (2925 parties)
1925 — Carls, Carl vs Bogoljubow, Efim — 1/2-1/2 — Baden-Baden GER
1926 — Antze, Oskar vs Saemisch, Friedrich — 1-0 — Hannover GER
1927 — Antze, Oskar vs Bogoljubow, Efim — 1-0 — Bremen GER
1927 — Carls, Carl vs Bogoljubow, Efim — 1/2-1/2 — Bremen GER
1929 — Menchik, Vera vs Lohmann, B.H — 0-1 — Ramsgate /Living Che
4…Nd4 — 4.1% (928 parties)
1972 — Uhlmann, Wolfgang vs Rossetto, Hector — 1-0 — Skopje ol (Men) fin-A
1972 — Tal, Mikhail vs Korchnoi, Viktor — 1/2-1/2 — Leningrad RUS
1972 — Smejkal, Jan vs Korchnoi, Viktor — 1/2-1/2 — Palma de Majorca ESP
1972 — Averbakh, Yuri L vs Korchnoi, Viktor — 1/2-1/2 — Palma de Majorca ESP
1972 — Uhlmann, Wolfgang vs Korchnoi, Viktor — 1/2-1/2 — Amsterdam NED