E31l — Leningrad Main Line
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Bg5 h6 5.Bh4 c5 6.d5 d6 7.e3 Bxc3+ 8.bxc3 e5 9.Qc2
Les coups candidats
9…Qe7 — 50.2% (202 parties)
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 — ?