Ambassadeurs : Arkell, Keith C (10x), Zapata, Alonso (8x), Nikolic, Predrag (8x), Geller, Efim P. (7x), Koehler, Josef (6x), Goldin, Alexander (5x), Kupreichik, Viktor D (5x), Bayer, Ernst-Wolfgang (5x)
9…Nd7 — 13.6% (242 parties)
Ambassadeurs : Huebner, Robert (4x), Sznapik, Aleksander (3x), Rjanova, Valery (3x), Thorbergsson, Freysteinn (2x), Barden, Leonard (2x), Dembo, Yelena (2x), Erdogdu, Muammer Mustafa (2x), Weinwurm, Wolfgang (2x)
9…e5 — 12.8% (228 parties)
Ambassadeurs : Krogius, Nikolai V (2x), Manor, Ilan (2x), Istratescu, Andrei (2x), Arkell, Keith C (2x), Tregubov, Pavel V. (2x), McShane, Luke J (2x), Born, Mario (2x), Flores, Diego (2x)
9…Na5 — 2.4% (42 parties)
Ambassadeurs : Cruz, Raul C. (1x), Scanavino, Eduardo (1x), Pigusov, Evgeny (1x), Gleizerov, Evgeny (1x), Meinberger, Leo (1x), Muench, Klaus-Norbert, Dr. (1x), Whiteley, Andrew J (1x), Kunsztowicz, Uwe (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo
N parties
9…b5
9…Nd7
9…e5
9…Na5
<1800
18
78%
—
17%
—
1800-2200
505
65%
12%
15%
3%
2200-2600
997
70%
14%
12%
2%
2600+
34
88%
9%
3%
—
Évolution par décennie (% des parties)
Décennie
N parties
9…b5
9…Nd7
9…e5
9…Na5
1950s
21
62%
29%
10%
—
1960s
29
38%
34%
17%
3%
1970s
49
67%
18%
8%
4%
1980s
157
76%
16%
5%
2%
1990s
260
67%
15%
13%
3%
2000s
442
60%
18%
14%
4%
2010s
725
73%
9%
13%
2%
2020s
95
71%
9%
18%
—
Tendances récentes (2010s → 2020s)
Coup
2010s
2020s
Δ
9…b5
73%
71%
▼ -2.9%
9…Nd7
9%
9%
▲ +0.8%
9…e5
13%
18%
▲ +4.7%
9…Na5
2%
0%
▼ -1.7%
Joueurs célèbres
Champions du monde dans cette position
Ju, Wenjun — 2 parties Ding, Liren — 2 parties Kasparov, Garry — 1 partie Hou, Yifan — 1 partie
Parties historiques
9…b5 — 68.3% (1214 parties)
1955 — Lilienthal, Andor vs Vasiukov, Evgeni — 0-1 — Moscow RUS 1955 — Kjaer Larsen, Maximillian C vs Olafsson, Fridrik — 1-0 — Reykjavik ISL 1957 — Portisch, Lajos vs Mednis, Aleksandrs — 0-1 — Reykjavik ol stud tt 1957 — Fuchs, Reinhart vs Beni, Alfred — 1-0 — Sofia zt Sofia BUL 1957 — Boleslavsky, Isaac vs Shagalovich, Abo — 1-0 — Minsk BLR
9…Nd7 — 13.6% (242 parties)
1956 — Larsen, Bent Ravn vs Thorbergsson, Freysteinn — 1/2-1/2 — Copenhagen DEN 1958 — Florian, Tibor vs Bilek, Istvan — 1/2-1/2 — HUN-ch Budapest HUN 1958 — Malich, Burkhard, Dr. vs Bobocov, M. — 1-0 — Balatonfured 1958 — Furman, Semyon vs Vasiukov, Evgeni — 1-0 — Vilnius LTU 1958 — Thorbergsson, Freysteinn vs Donner, Jan-Hein — 0-1 — Munchen olm
9…e5 — 12.8% (228 parties)
1958 — Thorbergsson, Freysteinn vs Pakdaman, Mehdi Col — 1-0 — Munich GER 1959 — Stupica, Janez vs Sofrevski, Jovan — 1/2-1/2 — Kragujevac ch14-YUG 1960 — Lehmann, Heinz vs Attard, Wilfred — 1-0 — Madrid ESP 1961 — Goldenberg, Edgardo vs Quinones Carrillo, Oscar — 1-0 — Mar del Plata ARG 1962 — Reefschlaeger, Helmut, Dr. vs Huebner, Robert — 1/2-1/2 — Kiel GER
9…Na5 — 2.4% (42 parties)
1961 — Cruz, Raul C. vs Scanavino, Eduardo — 1-0 — Buenos Aires ARG 1973 — Whiteley, Andrew J vs Kunsztowicz, Uwe — 1-0 — Gstaad 1976 — Meinberger, Leo vs Muench, Klaus-Norbert, Dr. — 1-0 — Germany South 1983 — Ivanov, Igor V. vs Zapata, Alonso — 1/2-1/2 — New York, NY USA 1988 — Pigusov, Evgeny vs Gleizerov, Evgeny — 1-0 — Voronezh RUS
Ding, Liren — 2 parties
Kasparov, Garry — 1 partie
Hou, Yifan — 1 partie
1955 — Kjaer Larsen, Maximillian C vs Olafsson, Fridrik — 1-0 — Reykjavik ISL
1957 — Portisch, Lajos vs Mednis, Aleksandrs — 0-1 — Reykjavik ol stud tt
1957 — Fuchs, Reinhart vs Beni, Alfred — 1-0 — Sofia zt Sofia BUL
1957 — Boleslavsky, Isaac vs Shagalovich, Abo — 1-0 — Minsk BLR
1958 — Florian, Tibor vs Bilek, Istvan — 1/2-1/2 — HUN-ch Budapest HUN
1958 — Malich, Burkhard, Dr. vs Bobocov, M. — 1-0 — Balatonfured
1958 — Furman, Semyon vs Vasiukov, Evgeni — 1-0 — Vilnius LTU
1958 — Thorbergsson, Freysteinn vs Donner, Jan-Hein — 0-1 — Munchen olm
1959 — Stupica, Janez vs Sofrevski, Jovan — 1/2-1/2 — Kragujevac ch14-YUG
1960 — Lehmann, Heinz vs Attard, Wilfred — 1-0 — Madrid ESP
1961 — Goldenberg, Edgardo vs Quinones Carrillo, Oscar — 1-0 — Mar del Plata ARG
1962 — Reefschlaeger, Helmut, Dr. vs Huebner, Robert — 1/2-1/2 — Kiel GER
1973 — Whiteley, Andrew J vs Kunsztowicz, Uwe — 1-0 — Gstaad
1976 — Meinberger, Leo vs Muench, Klaus-Norbert, Dr. — 1-0 — Germany South
1983 — Ivanov, Igor V. vs Zapata, Alonso — 1/2-1/2 — New York, NY USA
1988 — Pigusov, Evgeny vs Gleizerov, Evgeny — 1-0 — Voronezh RUS