A26n — Botvinnik System (1956)
1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.e4 Nge7 7.Nge2
Les coups candidats
7…O-O — 72.4% (1323 parties)
Ambassadeurs : Miezis, Normunds (21x), Lanzani, Paolo (10x), Lauer, Roland (8x), Grant, Jonathan I M (7x), Bischoff, Klaus (6x), Araújo, Hélio da Silva (5x), Brusiani, Angelo (5x), Kraschl, Joerg (4x)
7…Be6 — 15.2% (277 parties)
Ambassadeurs : McNab, Colin A (4x), Schmidt, Wlodzimierz (2x), Botvinnik, Mikhail (2x), Ribli, Zoltan (2x), Jansa, Vlastimil (2x), Kopec, Danny (2x), Wotulo, Max (1x), Kinzel, Anton (1x)
7…f5 — 3.0% (55 parties)
Ambassadeurs : Benko, Pal (2x), Botvinnik, Mikhail (1x), Byrne, David (1x), Ornithopoulos, Nikolaos (1x), Cappello, Giovanni (1x), Hantke, Rolf (1x), Diekmann, Hans-Joachim, Dr. (1x), McGrath, Frank B (1x)
7…Bg4 — 2.9% (53 parties)
Ambassadeurs : Fischer, Robert J (2x), Shtern, Igor (2x), Karlsson, Lars 1937 (2x), Allor, Chukwuka (2x), Al Husari, Zita Fatima (1x), Beni, Alfred (1x), Eising, Johannes (1x), Ueter, Heinz-Dieter (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…O-O 7…Be6 7…f5 7…Bg4
<1800 77 74% 9% 3% 10%
1800-2200 819 73% 16% 3% 2%
2200-2600 712 71% 16% 2% 2%
2600+ 16 56% 19%
Évolution par décennie (% des parties)
Décennie N parties 7…O-O 7…Be6 7…f5 7…Bg4
1950s 1 100%
1960s 31 65% 16% 13%
1970s 45 80% 16%
1980s 81 77% 11% 2% 4%
1990s 340 74% 17% 2% 3%
2000s 533 72% 17% 2% 3%
2010s 675 72% 13% 4% 3%
2020s 121 69% 17% 2% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…O-O 72% 69% ▼ -2.9%
7…Be6 13% 17% ▲ +3.0%
7…f5 4% 2% ▼ -2.5%
7…Bg4 3% 2% -0.3%
Joueurs célèbres
Champions du monde dans cette position
Botvinnik, Mikhail — 4 parties
Kasparov, Garry — 2 parties
Tal, Mikhail — 1 partie
Ju, Wenjun — 1 partie
Gukesh D — 1 partie
Parties historiques
7…O-O — 72.4% (1323 parties)
1960 — Uhlmann, Wolfgang vs Kholmov, Ratmir D — 1-0 — Moscow RUS
1960 — Lombardy, William J vs Malich, Burkhard, Dr. — 1-0 — Leningrad RUS
1962 — Eliskases, Erich vs Benzaquen, Pablo — 1-0 — Argentina
1962 — Seliger, Bedrich vs Smejkal, Jan — 0-1 — Sternberk
1962 — Byrne, David vs Penrose, Jonathan — 1/2-1/2 — Mar del Plata ARG
7…Be6 — 15.2% (277 parties)
1965 — Botvinnik, Mikhail vs Kort, Jacob — 1-0 — Noordwijk
1965 — Botvinnik, Mikhail vs Kort, Alfred — 1-0 — Noordwijk
1966 — Wotulo, Max vs Kinzel, Anton — 1/2-1/2 — Havana CUB
1969 — Schmidt, Wlodzimierz vs Jansa, Vlastimil — 0-1 — Polanica Zdroj POL
1969 — De Veauce, Louis vs Haygarth, Michael J — 0-1 — Rhyl ch-BCF
7…f5 — 3.0% (55 parties)
1966 — Byrne, David vs Benko, Pal — 0-1 — New York ch-USA
1968 — Benko, Pal vs Botvinnik, Mikhail — 0-1 — Monte Carlo MNC
1968 — Ornithopoulos, Nikolaos vs Cappello, Giovanni — 0-1 — Lugano olm
1968 — Hantke, Rolf vs Diekmann, Hans-Joachim, Dr. — 0-1 — Hagen
1986 — Delaney, Ann Teresa vs Ribeiro, Regina — 1/2-1/2 — Dubai ol women
7…Bg4 — 2.9% (53 parties)
1956 — Al Husari, Zita Fatima vs Beni, Alfred — 1-0 — Marianske Lazne
1986 — Fischer, Robert J vs Shtern, Igor — 0-1 — Philadelphia, PA USA
1986 — Fischer, Robert J vs Shtern, Igor — 0-1 — Midwest Masters op
1989 — Eising, Johannes vs Ueter, Heinz-Dieter — 0-1 — GER
1990 — Karlsson, Lars 1937 vs Hruschka, Friedrich — 1-0 — ICCF World Cup6-7 sf27