Ambassadeurs : Zylla, Johannes (15x), Gaertner, Guntram (7x), Chetvertakov, Valery (4x), Reinke, Kurt (3x), Jussupow, Artur (3x), Matveeva, Svetlana (3x), Glavas, Dragan (3x), Eriksson, Johan (3x)
9…Nbd7 — 29.1% (117 parties)
Ambassadeurs : Gaertner, Guntram (4x), Macdonald-Ross, Michael (3x), Keres, Paul (2x), O'Kelly de Galway, Alberic (2x), Keene, Raymond D (2x), Grinza, Andrea (2x), Peralta, Fernando (2x), Cherniack, Alex (2x)
9…g5 — 12.4% (50 parties)
Ambassadeurs : Ivelinov, Hristo (4x), Zylla, Johannes (3x), Prohaszka, Peter (2x), Babula, Vlastimil (2x), Marovic, Drazen (1x), Ree, Hans (1x), Benko, Pal (1x), Lengyel, Levente (1x)
9…O-O — 7.5% (30 parties)
Ambassadeurs : Bindrich, Oswald (1x), Sheth, Ramesh (1x), Korsakov B (1x), Lazarev, Gennady (1x), Korsakov, Aleksandr (1x), Lasarev, Alexander (1x), Ghitescu, Theodor (1x), Kozma, Julius (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo
N parties
9…Qe7
9…Nbd7
9…g5
9…O-O
<1800
3
100%
—
—
—
1800-2200
101
45%
33%
16%
6%
2200-2600
202
52%
27%
13%
7%
2600+
10
80%
20%
—
—
Évolution par décennie (% des parties)
Décennie
N parties
9…Qe7
9…Nbd7
9…g5
9…O-O
1950s
12
42%
25%
8%
25%
1960s
18
39%
44%
11%
6%
1970s
18
17%
67%
17%
—
1980s
28
64%
21%
4%
11%
1990s
86
51%
29%
14%
5%
2000s
111
57%
31%
5%
6%
2010s
109
50%
24%
17%
9%
2020s
20
40%
15%
30%
10%
Tendances récentes (2010s → 2020s)
Coup
2010s
2020s
Δ
9…Qe7
50%
40%
▼ -9.5%
9…Nbd7
24%
15%
▼ -8.9%
9…g5
17%
30%
▲ +12.6%
9…O-O
9%
10%
▲ +0.8%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 1 partie
Parties historiques
9…Qe7 — 50.2% (202 parties)
1955 — Tolush, Alexander V vs Antoshin, Vladimir S — 0-1 — Moscow RUS 1957 — Cherepkov, Alexander V vs Nikitin, Aleksander S — 1/2-1/2 — Leningrad RUS 1957 — Spassky, Boris Vasily vs Kholmov, Ratmir D — 1/2-1/2 — Moskou ch-URS 1959 — Penrose, Jonathan vs Kostro, Jerzy — 1-0 — Budapest HUN 1959 — Vyslouzil, Antonin vs Nikitin, Aleksander S — 0-1 — Budapest HUN
9…Nbd7 — 29.1% (117 parties)
1952 — Keres, Paul vs O'Kelly de Galway, Alberic — 1/2-1/2 — Budapest HUN 1952 — Keres, Paul vs O'Kelly, Albéric de Galway — 1-0 — Budapest HUN 1956 — Van Seters, Frits vs O'Kelly de Galway, Alberic — 1/2-1/2 — Brussels BEL 1960 — Beyen, Roland vs Kolarov, Atanas S. — 0-1 — Leningrad RUS 1960 — Lazarev, Efim M. vs Zimin Yuri A — 0-1 — ?
9…g5 — 12.4% (50 parties)
1957 — Benko, Pal vs Lengyel, Levente — 1-0 — HUN-ch Budapest HUN 1968 — Marovic, Drazen vs Ree, Hans — 0-1 — Amsterdam NED 1969 — Kliukin, Boris P vs Shalnev, Nikolai — 1-0 — ? 1971 — Middelkoop, Arno vs Ligterink, Gert — 0-1 — Nederland tt 1975 — Willaert, Robert vs Wostyn, Hendrik — 1/2-1/2 — Ghent
9…O-O — 7.5% (30 parties)
1957 — Korsakov B vs Lazarev, Gennady — 1-0 — Kiev UKR 1957 — Korsakov, Aleksandr vs Lasarev, Alexander — 1-0 — Ukraine ch 1957 — Ghitescu, Theodor vs Kozma, Julius — 0-1 — Bratislava Bratislava SVK 1969 — Bindrich, Oswald vs Sheth, Ramesh — 0-1 — Leipzig GER 1983 — Bourgoin, Denis vs Bouttier, Pierre — 0-1 — ?
1957 — Cherepkov, Alexander V vs Nikitin, Aleksander S — 1/2-1/2 — Leningrad RUS
1957 — Spassky, Boris Vasily vs Kholmov, Ratmir D — 1/2-1/2 — Moskou ch-URS
1959 — Penrose, Jonathan vs Kostro, Jerzy — 1-0 — Budapest HUN
1959 — Vyslouzil, Antonin vs Nikitin, Aleksander S — 0-1 — Budapest HUN
1952 — Keres, Paul vs O'Kelly, Albéric de Galway — 1-0 — Budapest HUN
1956 — Van Seters, Frits vs O'Kelly de Galway, Alberic — 1/2-1/2 — Brussels BEL
1960 — Beyen, Roland vs Kolarov, Atanas S. — 0-1 — Leningrad RUS
1960 — Lazarev, Efim M. vs Zimin Yuri A — 0-1 — ?
1968 — Marovic, Drazen vs Ree, Hans — 0-1 — Amsterdam NED
1969 — Kliukin, Boris P vs Shalnev, Nikolai — 1-0 — ?
1971 — Middelkoop, Arno vs Ligterink, Gert — 0-1 — Nederland tt
1975 — Willaert, Robert vs Wostyn, Hendrik — 1/2-1/2 — Ghent
1957 — Korsakov, Aleksandr vs Lasarev, Alexander — 1-0 — Ukraine ch
1957 — Ghitescu, Theodor vs Kozma, Julius — 0-1 — Bratislava Bratislava SVK
1969 — Bindrich, Oswald vs Sheth, Ramesh — 0-1 — Leipzig GER
1983 — Bourgoin, Denis vs Bouttier, Pierre — 0-1 — ?