D21u — Alekhine Defense, Borisenko-Furman Variation (1947)
1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e4
Les coups candidats
4…b5 — 87.8% (258 parties)
Ambassadeurs : Bronstein, David I (4x), Kohlweyer, Bernd (4x), Bakheet Farag (4x), Henke, Simon (4x), ? (3x), Baburin, Alexander (3x), Schmidt, Roland (3x), Hilchenbach, Hubertus (3x)
4…Bg4 — 5.1% (15 parties)
Ambassadeurs : Balanel, Ion (2x), Gawlikowski, Stanislaw (1x), Lundin, Erik (1x), Borisenko, Georgy K (1x), Flohr, Salo (1x), Chachere, Lawrence (1x), Szpisjak, Steven (1x), Vorovitch, A. (1x)
4…Nf6 — 5.1% (15 parties)
Ambassadeurs : Alster, Ladislav (1x), Szilagyi, Gyorgy Laszlo (1x), Berzzarins Gunars E (1x), Bowman, DN. (1x), Geller, Efim P. (1x), Nilsson, Zandor (1x), Garcia Cervigon, Cecilio (1x), Sanz Bosc, Narciso (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 12 75% — 8% 8%
1800-2200 72 86% 6% 7% —
2200-2600 131 94% 3% 3% —
2600+ 6 83% — 17% —
Évolution par décennie (% des parties)
Décennie N parties 4…b5 4…Bg4 4…Nf6 4…c5
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 13 77% — 23% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…b5 86% 77% ▼ -9.2%
4…Bg4 6% 0% ▼ -5.6%
4…Nf6 4% 23% ▲ +18.9%
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 — 87.8% (258 parties)
1953 — Bronstein, David I vs Beilin, Mikhail — 1-0 — Moscow RUS
1953 — Bronstein, David I vs Simagin, Vladimir — 1/2-1/2 — Moscow-ch Moscow RUS
1954 — Efimov, Kondrat vs Zamkovskaya, Violetta Aleks — 0-1 — Leningrad RUS
1955 — Vladimirov, Boris vs Gusev, Yuri — 0-1 — USSR
1957 — Borisenko, Aleksei V vs Aratovsky, Nikolay — 1-0 — corr ch-SU
4…Bg4 — 5.1% (15 parties)
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 — ?
1982 — Chachere, Lawrence vs Szpisjak, Steven — 0-1 — Midwest Masters Inv
4…Nf6 — 5.1% (15 parties)
1951 — Berzzarins Gunars E vs Bowman, DN. — 1/2-1/2 — ?
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