A12b — Bogoljubow Variation (1925)
1.c4 c6 2.Nf3 d5 3.b3 Bg4
Les coups candidats
4.Bb2 — 47.6% (615 parties)
Ambassadeurs : McNab, Colin A (8x), Hennings, Artur (5x), Krnic, Zdenko (5x), Uhlmann, Wolfgang (4x), Winants, Luc (3x), Przewoznik, Jan (3x), Khenkin, Igor (3x), Nyback, Tomi (3x)
4.e3 — 25.3% (327 parties)
Ambassadeurs : Spiridonov, Nikola (4x), Telljohann, Sven (3x), Heidtmann, Dirk (3x), Lloyd, Adrian (2x), Manouck, Thierry (2x), Babenko, S (2x), Nedochetov, Mikhail (2x), Alfaro, Carrillo Emanuel (2x)
4.Ne5 — 18.3% (237 parties)
Ambassadeurs : Krnic, Zdenko (3x), Ivacic, Vladimir (2x), Forintos, Gyozo V (2x), Ager, Josef (2x), Wiedner, Robert (2x), Aadhitha Karikalan (2x), Sandmeier, Toni (2x), Wolf, Ulrich (2x)
4.g3 — 5.8% (75 parties)
Ambassadeurs : Przewoznik, Jan (3x), Mammadova, Nargiz (3x), Fisher-Kirshner, Micah (2x), Derikum, Axel (1x), Hermann, Manfred (1x), Knudsen, Ole (1x), Bang, Andreas (1x), Ludgate, Alan (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4.Bb2 4.e3 4.Ne5 4.g3
<1800 35 31% 40% 14% 11%
1800-2200 389 44% 19% 24% 10%
2200-2600 738 50% 28% 16% 4%
2600+ 4 75% 25% — —
Évolution par décennie (% des parties)
Décennie N parties 4.Bb2 4.e3 4.Ne5 4.g3
1950s 5 40% 20% — —
1960s 9 78% 11% 11% —
1970s 36 44% 39% 6% —
1980s 63 52% 30% 11% 3%
1990s 369 51% 23% 18% 5%
2000s 457 46% 23% 20% 8%
2010s 313 44% 29% 20% 5%
2020s 40 58% 25% 8% 5%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4.Bb2 44% 58% ▲ +13.7%
4.e3 29% 25% ▼ -4.4%
4.Ne5 20% 8% ▼ -12.6%
4.g3 5% 5% -0.1%
Joueurs célèbres
Champions du monde dans cette position
Gukesh D — 2 parties
Anand, Viswanathan — 1 partie
Smyslov, Vladimir — 1 partie
Parties historiques
4.Bb2 — 47.6% (615 parties)
1954 — Milic, Borislav vs Aadhitha Karikalan — 1-0 — Belgrade SRB
1957 — Keres, Paul Petrovich vs Pachman, Ludek — 1-0 — Vienna AUT
1964 — Bordell Rosell, Roman vs Tejero Royo, Fermin — 1-0 — Las Palmas ESP
1968 — Timman, Jan H vs Van der Spek, Hein Piet — 1-0 — It The Hague NED
1968 — Dietze, Wolfgang, Dr. vs Knaak, Joachim — 1-0 — Neukieritzsch
4.e3 — 25.3% (327 parties)
1956 — Ignatiev, Felix N vs Chistiakov, Alexander — 1-0 — Moscow RUS
1962 — Hort, Vlastimil vs Zinn, Lothar — 0-1 — Marianske Lazne
1973 — Smyslov, Vasily vs Sveshnikov, Evgeny — 1/2-1/2 — Moskou ch-URS
1973 — Frolov, Artur vs Lukashkin, Andrey — 1-0 — Leningrad RUS
1974 — Urankar, Hans-Peter vs Becker, Peter — 1/2-1/2 — Ibbenbueren
4.Ne5 — 18.3% (237 parties)
1968 — Byrne, Donald vs Pomar Salamanca, Arturo — 1/2-1/2 — Palma de Majorca ESP
1977 — Belov, Lev A vs Filipenko, Alexander V — 1-0 — Volgograd RUS
1979 — Sula, Zeqir vs Trikaliotis, Georgios — 1/2-1/2 — Bihac BIH
1981 — Levitina, Irina vs Zaitseva, Ludmila G. — 1/2-1/2 — Ivano-Frankovsk
1985 — Halgekar Swetank vs Hugger , Marcel — 1-0 — Badenweiler op
4.g3 — 5.8% (75 parties)
1985 — Derikum, Axel vs Hermann, Manfred — 1/2-1/2 — GER
1989 — Knudsen, Ole vs Bang, Andreas — 1/2-1/2 — Aalborg DEN
1991 — Zoldi, Zoltan vs Forgacs, Jozsef — 0-1 — HUN
1992 — Van Hoolandt, Patrick vs Henris, Luc — 1-0 — Belgium
1994 — Ludgate, Alan vs Ballon, Guenther — 1-0 — Isle of Man open