Ambassadeurs : Byrne, Ray (8x), Podzielny, Karl-Heinz (5x), Nickl, Klaus (4x), Jansa, Vlastimil (3x), Balcerowski, Witold (3x), Gheorghiu, Florin (3x), Benko, Pal (2x), Bobotsov, Milko G (2x)
7…Nbd7 — 8.3% (35 parties)
Ambassadeurs : Byrne, Ray (2x), Bobotsov, Milko G (1x), Addison, Wiliam G (1x), Saidy, Anthony (1x), Bertok, Mario Jr. (1x), Tichy, Vladimir (1x), Meduna, Eduard (1x), Bjerre, Troels (1x)
7…O-O — 8.1% (34 parties)
Ambassadeurs : Day, Lawrence A. (1x), Grimshaw, David (1x), Ziembinski, Marian (1x), Schmidt, Wlodzimierz (1x), Renee Wood (1x), Goethals F (1x), Benko, Pal (1x), Byrne, Ray (1x)
7…Qa5 — 4.5% (19 parties)
Ambassadeurs : Ungureanu, Elena-Alexandra (1x), Norby, Peter H. (1x), Fazekas, Stephan (1x), Wade, Robert G (1x), Petrosian, Tigran V. (1x), Byrne, Robert E (1x), Kuszko, Juliusz (1x), Pietrusiak, Bogdan (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo
N parties
7…a5
7…Nbd7
7…O-O
7…Qa5
<1800
10
50%
10%
30%
10%
1800-2200
145
77%
8%
9%
4%
2200-2600
158
86%
6%
6%
3%
2600+
3
100%
—
—
—
Évolution par décennie (% des parties)
Décennie
N parties
7…a5
7…Nbd7
7…O-O
7…Qa5
1950s
2
50%
—
—
50%
1960s
34
68%
9%
12%
12%
1970s
40
82%
2%
8%
8%
1980s
42
86%
7%
5%
2%
1990s
83
76%
11%
7%
5%
2000s
87
72%
15%
8%
2%
2010s
114
83%
4%
9%
3%
2020s
18
72%
11%
11%
6%
Tendances récentes (2010s → 2020s)
Coup
2010s
2020s
Δ
7…a5
83%
72%
▼ -11.1%
7…Nbd7
4%
11%
▲ +7.6%
7…O-O
9%
11%
▲ +2.3%
7…Qa5
3%
6%
▲ +2.9%
Parties historiques
7…a5 — 77.9% (327 parties)
1957 — Koblents, Aleksandrs N vs Dubinin, Peter — 1/2-1/2 — ? 1961 — Anokhin, Yuri vs Nei, Iivo — 0-1 — URS-ch sf Batumi GEO 1963 — Damjanovic, Mato vs Bertok, Mario Jr. — 1/2-1/2 — Zenica ch YUG 1964 — Bronstein, David I vs Evans, Larry — 1-0 — Amsterdam NED 1965 — Khodos, German vs Pavlov, Mircea-Sergiu-Aurelian — 1/2-1/2 — Sinaia
7…Nbd7 — 8.3% (35 parties)
1965 — Addison, Wiliam G vs Byrne, Ray — 1/2-1/2 — New York, NY USA 1966 — Bobotsov, Milko G vs Byrne, Ray — 1-0 — Havana CUB 1967 — Saidy, Anthony vs Bertok, Mario Jr. — 1-0 — Reggio Emilia ITA 1978 — Tichy, Vladimir vs Meduna, Eduard — 1-0 — Marianske Lazne 1986 — Andrianov, Nikolai vs Hesse, Peter — 1-0 — Olomouc CZE
7…O-O — 8.1% (34 parties)
1963 — Day, Lawrence A. vs Grimshaw, David — 1/2-1/2 — Toronto CAN 1965 — Renee Wood vs Goethals F — 0-1 — Sinaia 1966 — Ziembinski, Marian vs Schmidt, Wlodzimierz — 1/2-1/2 — Rzeszow ch POL 1966 — Benko, Pal vs Byrne, Ray — 1-0 — New York, NY USA 1972 — Cunningham, Sherman B vs Stevens, Lawrence — 0-1 — ?
7…Qa5 — 4.5% (19 parties)
1959 — Fazekas, Stephan vs Wade, Robert G — 1/2-1/2 — York ch-BCF 1964 — Petrosian, Tigran V. vs Byrne, Robert E — 1-0 — Buenos Aires ARG 1965 — Kuszko, Juliusz vs Pietrusiak, Bogdan — 0-1 — Poznan POL 1968 — Ungureanu, Elena-Alexandra vs Norby, Peter H. — 1-0 — Lugano SUI 1968 — Konopleva, Natalia vs Zvorykina, Kira — 1-0 — Ashkhabad
1961 — Anokhin, Yuri vs Nei, Iivo — 0-1 — URS-ch sf Batumi GEO
1963 — Damjanovic, Mato vs Bertok, Mario Jr. — 1/2-1/2 — Zenica ch YUG
1964 — Bronstein, David I vs Evans, Larry — 1-0 — Amsterdam NED
1965 — Khodos, German vs Pavlov, Mircea-Sergiu-Aurelian — 1/2-1/2 — Sinaia
1966 — Bobotsov, Milko G vs Byrne, Ray — 1-0 — Havana CUB
1967 — Saidy, Anthony vs Bertok, Mario Jr. — 1-0 — Reggio Emilia ITA
1978 — Tichy, Vladimir vs Meduna, Eduard — 1-0 — Marianske Lazne
1986 — Andrianov, Nikolai vs Hesse, Peter — 1-0 — Olomouc CZE
1965 — Renee Wood vs Goethals F — 0-1 — Sinaia
1966 — Ziembinski, Marian vs Schmidt, Wlodzimierz — 1/2-1/2 — Rzeszow ch POL
1966 — Benko, Pal vs Byrne, Ray — 1-0 — New York, NY USA
1972 — Cunningham, Sherman B vs Stevens, Lawrence — 0-1 — ?
1964 — Petrosian, Tigran V. vs Byrne, Robert E — 1-0 — Buenos Aires ARG
1965 — Kuszko, Juliusz vs Pietrusiak, Bogdan — 0-1 — Poznan POL
1968 — Ungureanu, Elena-Alexandra vs Norby, Peter H. — 1-0 — Lugano SUI
1968 — Konopleva, Natalia vs Zvorykina, Kira — 1-0 — Ashkhabad