Ambassadeurs : Schweber, Samuel (3x), Naumkin, Igor (3x), Chekhover, Vitaly (2x), Langeweg, Kick (2x), Flear, Christine (2x), Kiraly, Istvan (2x), Radomsky, Viacheslav G (2x), Macek, Vlasta (2x)
9…Bg4 — 21.4% (147 parties)
Ambassadeurs : Razuvaev, Yuri S (3x), Verduga Zavala, Denis (2x), Zolnierowicz, Krzysztof (2x), Hamann, Sven (2x), Wahjuwidajat, Utut Adianto (2x), Dimukhametov, Artur (2x), Ragozin, Viacheslav (1x), Yudovich, Mikhail sr (1x)
9…c4 — 19.5% (134 parties)
Ambassadeurs : Naumkin, Igor (7x), Lida Garcia, Fernando (3x), Reides, Marcelo (3x), De Jong, Peter (2x), Razuvaev, Yuri S (2x), Mozny, Milos (2x), Visser, Dirk (2x), Naoum, Spyridon (2x)
9…a6 — 11.9% (82 parties)
Ambassadeurs : Bukal, Vladimir Jr. (1x), Pernisco, Ermanno (1x), Al Ferri, Abdulkhader (1x), Groffen, Hans (1x), Root, Alexey (1x), Burke, Paul (1x), Caetano Netto, Joaquim Gentil (1x), Toth, Peter (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo
N parties
9…Be6
9…Bg4
9…c4
9…a6
<1800
22
9%
14%
23%
18%
1800-2200
254
20%
21%
21%
18%
2200-2600
280
20%
26%
23%
9%
2600+
2
50%
50%
—
—
Évolution par décennie (% des parties)
Décennie
N parties
9…Be6
9…Bg4
9…c4
9…a6
1910s
1
—
—
—
—
1930s
2
—
—
—
—
1940s
4
25%
25%
—
—
1950s
11
36%
—
9%
—
1960s
25
44%
4%
4%
—
1970s
25
20%
8%
8%
4%
1980s
48
33%
29%
6%
6%
1990s
123
20%
31%
14%
12%
2000s
162
23%
25%
15%
14%
2010s
237
17%
18%
30%
14%
2020s
50
20%
18%
30%
16%
Tendances récentes (2010s → 2020s)
Coup
2010s
2020s
Δ
9…Be6
17%
20%
▲ +2.7%
9…Bg4
18%
18%
+0.3%
9…c4
30%
30%
+0.5%
9…a6
14%
16%
▲ +2.5%
Parties historiques
9…Be6 — 21.8% (150 parties)
1949 — Moiseev, Oleg vs Bonch-Osmolovsky, Mikhail — 1-0 — Moscow RUS 1954 — Ragozin, Viacheslav vs Chekhover, Vitaly — 1-0 — URS-ch sf Leningrad RUS 1954 — Shcherbakov, Vitaly vs Chekhover, Vitaly — 1-0 — Leningrad ch22-SU sf 1958 — Green, Arnold Yorwarth vs Lemvig-Fog, Malte — 1/2-1/2 — Hastings ENG 1959 — Ilivitsky, Georgy A vs Grushevsky, Alexander — 1-0 — Frunze KGZ
9…Bg4 — 21.4% (147 parties)
1942 — Ragozin, Viacheslav vs Yudovich, Mikhail sr — 1-0 — Moscow RUS 1969 — Ghitescu, Theodor vs Stanciu, Traian — 1/2-1/2 — Bucharest ROU 1974 — Matera, Salvatore vs Nunn, John D M — 1/2-1/2 — Teesside ENG 1974 — Masic, Ljubomir vs Raicevic, Vladimir — 0-1 — Sombor 1980 — Frias Garcia, Valeria vs Gligoric, Sofija — 0-1 — Lone Pine, CA USA
9…c4 — 19.5% (134 parties)
1959 — Petrosian, Tigran A. vs Aronin, Lev — 1/2-1/2 — Moscow RUS 1969 — Moiseev, Oleg vs Yudovich, Mikhail Jr — 1-0 — Svetlogorsk 1976 — Barth, Rainer vs Mueller, Klaus Uwe — 1/2-1/2 — Spremberg 1977 — Petrosian, Arshak B vs Liavdansky, Vladimir — 1-0 — Kiev tt 1980 — Shestakov, Sergei S vs Fedorov, Vladislav — 1-0 — Volgograd RUS
9…a6 — 11.9% (82 parties)
1971 — Al Ferri, Abdulkhader vs Groffen, Hans — 1-0 — corr Italy 1984 — Root, Alexey vs Burke, Paul — 0-1 — Vancouver 1984 — Caetano Netto, Joaquim Gentil vs Toth, Peter — 1/2-1/2 — BRA-ch 51th Cabo Frio 1989 — Bukal, Vladimir Jr. vs Pernisco, Ermanno — 1/2-1/2 — Mendrisio SUI 1990 — Daniel Fano vs Garcia Perez, Juan Carlos — 1/2-1/2 — ESP
1954 — Ragozin, Viacheslav vs Chekhover, Vitaly — 1-0 — URS-ch sf Leningrad RUS
1954 — Shcherbakov, Vitaly vs Chekhover, Vitaly — 1-0 — Leningrad ch22-SU sf
1958 — Green, Arnold Yorwarth vs Lemvig-Fog, Malte — 1/2-1/2 — Hastings ENG
1959 — Ilivitsky, Georgy A vs Grushevsky, Alexander — 1-0 — Frunze KGZ
1969 — Ghitescu, Theodor vs Stanciu, Traian — 1/2-1/2 — Bucharest ROU
1974 — Matera, Salvatore vs Nunn, John D M — 1/2-1/2 — Teesside ENG
1974 — Masic, Ljubomir vs Raicevic, Vladimir — 0-1 — Sombor
1980 — Frias Garcia, Valeria vs Gligoric, Sofija — 0-1 — Lone Pine, CA USA
1969 — Moiseev, Oleg vs Yudovich, Mikhail Jr — 1-0 — Svetlogorsk
1976 — Barth, Rainer vs Mueller, Klaus Uwe — 1/2-1/2 — Spremberg
1977 — Petrosian, Arshak B vs Liavdansky, Vladimir — 1-0 — Kiev tt
1980 — Shestakov, Sergei S vs Fedorov, Vladislav — 1-0 — Volgograd RUS
1984 — Root, Alexey vs Burke, Paul — 0-1 — Vancouver
1984 — Caetano Netto, Joaquim Gentil vs Toth, Peter — 1/2-1/2 — BRA-ch 51th Cabo Frio
1989 — Bukal, Vladimir Jr. vs Pernisco, Ermanno — 1/2-1/2 — Mendrisio SUI
1990 — Daniel Fano vs Garcia Perez, Juan Carlos — 1/2-1/2 — ESP