D21u — Alekhine Borisenko-Furman Variation
1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e4
Les coups candidats
4…b5 — 87.7% (256 parties)
Ambassadeurs : Kohlweyer, Bernd (4x), Bronstein, David I (4x), Farago, Ivan (4x), Henke, Simon (4x), Hilchenbach, Hubertus (4x), Weber, Aloys (4x), Knaak, Rainer (3x), Gruenberg, Hans-Ulrich (3x)
4…Bg4 — 5.5% (16 parties)
Ambassadeurs : Balanel, Ion (2x), Auer, Franz (1x), Fuster, Geza (1x), Borisenko, Georgy K (1x), Flohr, Salo (1x), Gawlikowski, Stanislaw (1x), Lundin, Erik (1x), Vorovitch, A. (1x)
4…Nf6 — 4.8% (14 parties)
Ambassadeurs : Berzzarins Gunars E (1x), Bowman Bowman, Christopher (1x), Geller, Efim P. (1x), Nilsson, Zandor (1x), Alster, Ladislav (1x), Szilagyi, Gyorgy Laszlo (1x), Salov, Valery (1x), Karpov, Anatoly (1x)
4…c5 — 1.0% (3 parties)
Ambassadeurs : Borisenko, Georgy K (1x), Grechkin, Artem (1x), Botvinnik, Mikhail (1x), Schmid, Leo (1x), Pafnutieff, W. (1x), Gross, Henry (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…b5 4…Bg4 4…Nf6 4…c5
<1800 4 100%
1800-2200 56 86% 7% 5% 2%
2200-2600 135 95% 2% 3%
2600+ 5 100%
Évolution par décennie (% des parties)
Décennie N parties 4…b5 4…Bg4 4…Nf6 4…c5
1940s 1 100%
1950s 13 46% 23% 23% 8%
1960s 9 78% 22%
1970s 8 100%
1980s 34 91% 9%
1990s 91 92% 4% 3%
2000s 54 93% 2% 6%
2010s 72 86% 6% 4%
2020s 10 80% 20%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…b5 86% 80% ▼ -6.1%
4…Bg4 6% 0% ▼ -5.6%
4…Nf6 4% 20% ▲ +15.8%
4…c5 0% 0% +0.0%
Joueurs célèbres
Champions du monde dans cette position
Botvinnik, Mikhail — 1 partie
Karpov, Anatoly — 1 partie
Parties historiques
4…b5 — 87.7% (256 parties)
1953 — Bronstein, David I vs Simagin, Vladimir — 1/2-1/2 — Moscow-ch Moscow RUS
1953 — Bronstein, David I vs Beilin, Mikhail — 1-0 — Moscow RUS
1954 — Kondratiev, Pavel E vs Zamikhovsky, Abram — 0-1 — Leningrad RUS
1955 — Vladimirov, Boris T vs Gusev, Aleksandr — 0-1 — Moscow RUS
1957 — Borisenko, Aleksei V vs Aratovsky, Nikolay — 1-0 — corr ch-SU
4…Bg4 — 5.5% (16 parties)
1947 — Auer, Franz vs Fuster, Geza — 1-0 — Budapest HUN
1950 — Borisenko, Georgy K vs Flohr, Salo — 0-1 — Moskou ch-URS
1952 — Balanel, Ion vs Gawlikowski, Stanislaw — 1-0 — Miedzyzdroje
1954 — Balanel, Ion vs Lundin, Erik — 0-1 — Prague zt Prague CZE
1981 — Vorovitch, A. vs Beliavets, S. — 1-0 — ?
4…Nf6 — 4.8% (14 parties)
1951 — Berzzarins Gunars E vs Bowman Bowman, Christopher — 1/2-1/2 — Brisbane AUS
1954 — Geller, Efim P. vs Nilsson, Zandor — 1-0 — Stockholm SWE
1956 — Alster, Ladislav vs Szilagyi, Gyorgy Laszlo — 1/2-1/2 — Marianske Lazne/Praha
1992 — Salov, Valery vs Karpov, Anatoly — 1/2-1/2 — 07, Moscow Alekhine Mem
1997 — Garcia Cervigon, Cecilio vs Sanz Bosc, Narciso — 1/2-1/2 — Mondariz ESP
4…c5 — 1.0% (3 parties)
1956 — Borisenko, Georgy K vs Grechkin, Artem — 1-0 — corr ch3-SU
1960 — Pafnutieff, W. vs Gross, Henry — 1-0 — San Francisco, CA USA
1965 — Botvinnik, Mikhail vs Schmid, Leo — 1-0 — Hamburg GER