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A90c —
1.d4 f5 2.c4 Nf6 3.g3 e6 4.Nf3
Les coups candidats
Ambassadeurs : Gleizerov, Evgeny (38x), Ulybin, Mikhail (19x), Agdestein, Simen (9x), Petursson, Margeir (7x), Voyska, Margarita (7x), Vihinen, Teemu (7x), Karlsson, Lars 1937 (6x), Brodie, Hugh (6x)
4…Be7 — 31.6% (1762 parties)
Ambassadeurs : Naumkin, Igor (14x), Roos, Jean-Luc (7x), Bischoff, Klaus (6x), Zalys, Ignas (5x), Bakheet Farag (4x), Annakov, Babakuli (4x), Spraggett, Kevin (4x), Akguney, Hasim (4x)
4…c6 — 10.4% (578 parties)
Ambassadeurs : Moskalenko, Viktor (6x), Ranfagni, Stefano (6x), Escofet, Jaime (4x), Machulsky, Anatoly D (3x), Hoang, Thanh Trang (3x), Abhishek Mari S (2x), Fohler, Martin (2x), Becking, Stephan (2x)
4…Bb4+ — 9.6% (536 parties)
Ambassadeurs : Karlsson, Lars 1937 (11x), Naumkin, Igor (8x), Just, Gabriele, Dr. (5x), Groenegress, Wilfried (4x), Popov, Vladimir L. (2x), Glek, Igor (2x), Taylor, Timothy (2x), Akguney, Hasim (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…d5 4…Be7 4…c6 4…Bb4+
<1800 345 34% 32% 13% 8%
1800-2200 2505 35% 33% 10% 10%
2200-2600 2020 43% 27% 11% 9%
2600+ 21 67% 14% 5%
Évolution par décennie (% des parties)
Décennie N parties 4…d5 4…Be7 4…c6 4…Bb4+
1950s 57 11% 61% 5% 19%
1960s 73 5% 67% 1% 15%
1970s 100 16% 53% 2% 21%
1980s 322 41% 31% 6% 14%
1990s 1020 40% 32% 12% 8%
2000s 1347 36% 31% 12% 9%
2010s 1921 40% 28% 12% 8%
2020s 728 34% 34% 6% 12%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…d5 40% 34% ▼ -6.6%
4…Be7 28% 34% ▲ +6.4%
4…c6 12% 6% ▼ -5.0%
4…Bb4+ 8% 12% ▲ +3.9%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 3 parties
Hou, Yifan — 2 parties
Gukesh D — 2 parties
Botvinnik, Mikhail — 1 partie
Karpov, Anatoly — 1 partie
Ju, Wenjun — 1 partie
Parties historiques
4…d5 — 37.2% (2071 parties)
1951 — Andrich, Alexander vs Ivkov, Bojidar — 0-1 — Sarajevo BIH
1954 — Weigelt, Horst vs Besser, Hans — 1/2-1/2 — Schkopau
1955 — Fortune, Robert vs Bekerman, Ignaz — 1-0 — ?
1955 — Jenei, Ferenc vs Weinberger, Tibor — 1/2-1/2 — Budapest HUN
1956 — Hacsak, Istvan vs Szobi, Tibor — 1-0 — Debrecen HUN
4…Be7 — 31.6% (1762 parties)
1950 — Sanguinetti, Ricardo vs Maderna, Carlos — 1-0 — Mar del Plata ARG
1951 — Keres, Paul Petrovich vs Bronstein, David I — 1-0 — Training game
1952 — Brilla-Banfalvi, Sandor vs Kenez, Pal — 1-0 — Paloc beker corr
1953 — Herbin, J. vs Mellberg, B. — 1/2-1/2 — Copenhagen DEN
1953 — Burgalat, Francisco J vs Jauregui, Carlos — 0-1 — Mar del Plata ARG
4…c6 — 10.4% (578 parties)
1951 — Giustolisi, Alberto vs Sanz, Joel — 1-0 — Madrid ESP
1954 — Borisenko, Georgy K vs Shamaev, Leonid — 1/2-1/2 — Leningrad RUS
1957 — Koska, Josef vs Novotny, Oldrich — 1-0 — Brno CZE
1967 — Popov, Luben vs Abhishek Mari S — 1/2-1/2 — Skopje MKD
1970 — Sahovic, Dragutin vs Abhishek Mari S — 1/2-1/2 — Yugoslavia
4…Bb4+ — 9.6% (536 parties)
1952 — Grynfeld, Izaak vs Boleslawski, Zbigniew — 1/2-1/2 — Katowice POL
1953 — Huehnel, Rainer vs Schmidt, Hermann — 1-0 — Brandenburg/Havel
1953 — Cuellar Gacharna, Miguel vs Guimard, Carlos E — 0-1 — Mar del Plata ARG
1953 — Granger, W. vs Steiner, Herman — 0-1 — Hollywood, CA
1956 — Nielsen, Axel vs Pedersen, Eigil — 1/2-1/2 — Copenhagen DEN