A37b —
1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 a6
Eval: [+0.26]
Les coups candidats
6.O-O — 70.8% (267 parties)
Ambassadeurs : Rantanen, Yrjo A. (8x), Benko, Pal (5x), Evans, Larry (3x), Osthof, Alfred, Prof. Dr. (3x), Malich, Burkhard, Dr. (2x), Kupper, Josef (2x), Kiffmeyer, Constanz (2x), Barcza, Gedeon (2x)
6.a3 — 13.0% (49 parties)
Ambassadeurs : Hoensch, Matthias (3x), Barcza, Gedeon (2x), Reshevsky, Samuel (2x), Krebs, Johann (2x), Ballmann, Martin (2x), Schmidt, Waldemar (1x), Blumenfeld Fernandez, Ilan (1x), Blumenfeld, Rudy (1x)
6.d3 — 6.9% (26 parties)
Ambassadeurs : De Bruycker, Bernard (3x), Pira, Davoud (3x), Benoit, Michel (2x), Stoliar, Efim Samoilovich (1x), Shmit, Anatoly (1x), Fuller, Roberto Antonio (1x), Penrose, Justin (1x), Arnaudov, Petar (1x)
6.e3 — 3.2% (12 parties)
Ambassadeurs : Lukic, Arsenije (1x), Bertok, Mario Jr. (1x), Dobosz, Henryk (1x), Schmidt, Wlodzimierz (1x), Gerusel, Mathias (1x), Kiffmeyer, Constanz (1x), Vigus, James E (1x), Beaumont, Chris R (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6.O-O 6.a3 6.d3 6.e3
<1800 3 33% 33% 33%
1800-2200 95 78% 8% 3% 3%
2200-2600 187 68% 16% 8% 3%
2600+ 2 100%
Évolution par décennie (% des parties)
Décennie N parties 6.O-O 6.a3 6.d3 6.e3
1920s 1 100%
1950s 9 33% 33% 11%
1960s 45 73% 9% 11%
1970s 23 57% 22% 9% 9%
1980s 25 80% 8% 4%
1990s 79 65% 16% 9% 4%
2000s 95 76% 11% 8% 2%
2010s 93 74% 12% 3% 4%
2020s 7 71% 14%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6.O-O 74% 71% ▼ -2.8%
6.a3 12% 14% ▲ +2.5%
6.d3 3% 0% ▼ -3.2%
6.e3 4% 0% ▼ -4.3%
Joueurs célèbres
Champions du monde dans cette position
Euwe, Max — 1 partie
Gukesh D — 1 partie
Parties historiques
6.O-O — 70.8% (267 parties)
1927 — Takacs, Sandor vs Beutum, Sigmund — 1-0 — Vienna AUT
1957 — Papp, Laszlo vs Barcza, Gedeon — 0-1 — Budapest HUN
1958 — Euwe, Max vs Szabo, Ladislav — 0-1 — Munchen olm
1958 — Reshevsky, Samuel vs Kupper, Josef — 1/2-1/2 — Munich GER
1960 — Radulescu, Mihai vs Soos, Bela — 0-1 — Bucharest ROU
6.a3 — 13.0% (49 parties)
1958 — Blumenfeld Fernandez, Ilan vs Reshevsky, Samuel — 0-1 — Nuerenberg GER
1958 — Blumenfeld, Rudy vs Reshevsky, Samuel — 0-1 — Haifa/Tel Aviv
1958 — Portisch, Lajos vs Szabo, Ladislav — 1/2-1/2 — Balatonfured
1965 — Barcza, Gedeon vs O'Kelly, Albéric de Galway — 1/2-1/2 — corr Ragosin
1968 — Barcza, Gedeon vs Schmidt, Waldemar — 1/2-1/2 — Lugano SUI
6.d3 — 6.9% (26 parties)
1962 — Fuller, Roberto Antonio vs Penrose, Justin — 1/2-1/2 — Whitby ch-BCF
1963 — Addison, Wiliam G vs Evans, Larry — 0-1 — New York ch-USA
1964 — Stoliar, Efim Samoilovich vs Shmit, Anatoly — 1/2-1/2 — Riga LAT
1965 — Arnaudov, Petar vs Kapengut, Albert — 0-1 — Sinaia stud ol prel
1968 — Dresen, Ulrich vs Kiffmeyer, Constanz — 0-1 — Saarbruecken
6.e3 — 3.2% (12 parties)
1959 — Lukic, Arsenije vs Bertok, Mario Jr. — 1-0 — JUG-ch Kragujevac YUG
1970 — Gerusel, Mathias vs Kiffmeyer, Constanz — 0-1 — Bad Pyrmont GER
1977 — Dobosz, Henryk vs Schmidt, Wlodzimierz — 0-1 — Piotrkow Trybunalski
1995 — Enzendorfer, Alfred vs Krebs, Johann — 1-0 — Austria Tch 9495
1998 — Vigus, James E vs Beaumont, Chris R — 1-0 — Warwick ENG