A25q — Closed (1935)
1.c4 e5 2.Nc3 Nc6 3.g3 f5 4.Bg2 Nf6 5.d3
Les coups candidats
5…Bb4 — 50.6% (1617 parties)
Ambassadeurs : Kurajica, Bojan (10x), Lyell, Mark (8x), Sher, Miron (5x), Carlstedt, Jonathan (5x), Spraggett, Kevin (4x), Najer, Evgeniy (4x), Sarenac, David (4x), Glud, Jakob Vang (4x)
5…Bc5 — 22.8% (727 parties)
Ambassadeurs : Mitkov, Nikola (8x), Starr, Nava (4x), Pogosian, Vladimir (3x), Gruskovnjak, Tomislav (3x), Saidy, Anthony (2x), Varnusz, Egon (2x), Maric, Boris (2x), Papp, Nandor (2x)
5…g6 — 9.2% (293 parties)
Ambassadeurs : Uhlmann, Wolfgang (4x), Kafka, Graeme (4x), Savon, Vladimir (2x), Golombek, Harry (2x), Bogoljubow, Efim (2x), Aronin, Lev (2x), Landry-Vuorenpaa, Sirkka (2x), Neber, Akos (2x)
5…Be7 — 8.0% (256 parties)
Ambassadeurs : Kuehn, Manfred (3x), Lombardy, William J (2x), Moody, David W (2x), Kowarsch, Heinrich (2x), Anderson, David (1x), Littrell, W. (1x), Van Seters, Frits (1x), Mollekens, Jozef (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5…Bb4 5…Bc5 5…g6 5…Be7
<1800 241 44% 29% 9% 9%
1800-2200 1655 49% 24% 9% 8%
2200-2600 951 59% 17% 10% 6%
2600+ 8 75% 12% 12% —
Évolution par décennie (% des parties)
Décennie N parties 5…Bb4 5…Bc5 5…g6 5…Be7
1950s 14 29% 21% 21% 21%
1960s 40 32% 8% 15% 20%
1970s 63 32% 37% 14% 8%
1980s 105 41% 24% 11% 11%
1990s 457 38% 24% 13% 12%
2000s 939 47% 25% 9% 7%
2010s 1282 58% 21% 7% 7%
2020s 295 60% 18% 7% 6%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5…Bb4 58% 60% ▲ +1.8%
5…Bc5 21% 18% ▼ -3.7%
5…g6 7% 7% ▼ -0.6%
5…Be7 7% 6% ▼ -0.8%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 4 parties
Fischer, Robert James — 1 partie
Botvinnik, Mikhail — 1 partie
Parties historiques
5…Bb4 — 50.6% (1617 parties)
1955 — Antonio Molina, Zayra Angelina vs Florian, Jaromir — 1-0 — Prague CZE
1956 — Endzelins, Lucius vs Purdy, Cecil J S — 0-1 — Australia
1956 — Tarasov, Vitaly vs Chistiakov, Alexander — 1/2-1/2 — Kharkov UKR
1957 — Goldberg, Grigory vs Chistiakov, Alexander — 1-0 — Kiev UKR
1960 — Langeweg, Kick vs Bisguier, Arthur B — 0-1 — Leipzig GER
5…Bc5 — 22.8% (727 parties)
1955 — De Rycke, Paul vs Boey, Josef — 1-0 — Belgium
1959 — Shekhtman Eduard vs Genin, Adeline — 0-1 — ?
1959 — Edwards, Ray B vs Fazekas, Stephan — 0-1 — York ch-BCF
1961 — Rabar, Braslav vs Dueckstein, Andreas — 1/2-1/2 — Graz AUT
1969 — Saidy, Anthony vs Fischer, Robert James — 1/2-1/2 — ?
5…g6 — 9.2% (293 parties)
1951 — Golombek, Harry vs Bogoljubow, Efim — 1/2-1/2 — Bad Pyrmont GER
1951 — Golombek, Harry vs Bogoljubow, Efim — 1/2-1/2 — Bad Pyrmont GER
1954 — Taimanov, Mark vs Aronin, Lev — 1-0 — Riga LAT
1960 — Enevoldsen, Jens vs Haahr, Thorkild — 1/2-1/2 — Aalborg DEN
1961 — Petrosian, Tigran V. vs Hort, Vlastimil — 1-0 — Oberhausen etc
5…Be7 — 8.0% (256 parties)
1950 — Pirc, Vasja vs Tartakower, Savielly — 0-1 — Amsterdam NED
1952 — Gawlikowski, Stanislaw vs Wozniak, Kazimierz — 1/2-1/2 — Katowice POL
1959 — Bobotsov, Milko G vs Pomar Salamanca, Arturo — 1-0 — Hastings ENG
1964 — Van Seters, Frits vs Mollekens, Jozef — 1/2-1/2 — Mechelen
1966 — Bonifacio, Marino vs Padoan, Antonio — 1/2-1/2 — Venice ITA