A89f - 9.Qd3 - Leningrad, Main Line (1957)

A89f — Leningrad, Main Line (1957)
1.d4 f5 2.c4 Nf6 3.g3 g6 4.Bg2 Bg7 5.Nf3 O-O 6.O-O d6 7.Nc3 Nc6 8.d5 Na5 9.Qd3
Les coups candidats
9…c5 — 61.7% (525 parties)
Ambassadeurs : Matulovic, Milan (6x), Joksic, Sinisa (5x), Mozes, Ervin (5x), Golcman, Evgeny (5x), Rodriguez Vila, Andres (4x), Kontic, Vladimir (3x), Haag, Ervin (3x), Brekke, Tore (3x)
9…e5 — 37.6% (320 parties)
Ambassadeurs : Knezevic, Milorad (5x), Wozniak, Mariola (5x), Fritsche, Frank (4x), Kun, Gabor (4x), Zapata, Alonso (2x), Coarer, Sterenn (2x), Bjelajac, Milan (2x), Jianu, Vlad-Cristian (2x)
9…b6 — 0.4% (3 parties)
Ambassadeurs : Carril Garcia, Luis (1x), Palacios Gonzalez, Juan Manuel (1x), Dunn, Andrew c (1x), Allis, Richard (1x), Albrecht, Manja (1x), Przybyl, Zbigniew (1x)
9…f4 — 0.1% (1 parties)
Ambassadeurs : Frisk, Ensio (1x), Sairanen, Pekka (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…c5 9…e5 9…b6 9…f4
<1800 20 65% 35% — —
1800-2200 322 52% 47% 1% —
2200-2600 392 66% 33% — —
2600+ 4 25% 75% — —
Évolution par décennie (% des parties)
Décennie N parties 9…c5 9…e5 9…b6 9…f4
1950s 3 100% — — —
1960s 25 84% 16% — —
1970s 34 82% 18% — —
1980s 62 79% 19% — 2%
1990s 216 75% 25% — —
2000s 229 59% 40% 0% —
2010s 261 44% 54% 1% —
2020s 21 52% 48% — —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…c5 44% 52% ▲ +7.9%
9…e5 54% 48% ▼ -6.8%
9…b6 1% 0% ▼ -0.8%
9…f4 0% 0% +0.0%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 1 partie
Botvinnik, Mikhail — 1 partie
Parties historiques
9…c5 — 61.7% (525 parties)
1957 — Bykov, Vladimir vs Alexander Tadala — 1-0 — Leningrad RUS
1959 — Benko, Pal vs Tal, Mikhail — 0-1 — Bled/Zagreb/Belgrade
1959 — Espinosa Flores, Rafael Emilio vs Pelikán, Jiří — 1-0 — Buenos Aires ARG
1960 — Roehrich, E. vs Haag, Ervin — 0-1 — corr FS
1960 — Udovcic, Mijo vs Matulovic, Milan — 1/2-1/2 — Ljubljana
9…e5 — 37.6% (320 parties)
1961 — Pachman, Ludek vs Kozomara, Vlado — 1/2-1/2 — Sarajevo BIH
1963 — Suarez Castro Aidan Fernando vs Herrera, Fernando — 0-1 — Buenos Aires ch-ARG
1963 — Novak, Zbynek vs Fabian, Jan — 1/2-1/2 — Prague CZE
1967 — Schumacher, Helmut vs Franco Raymundo, Eduardo — 1/2-1/2 — Barcelona ESP
1971 — Mititelu, Gheorghe vs Stanciu, Traian — 1/2-1/2 — Bucharest ROU
9…b6 — 0.4% (3 parties)
2008 — Carril Garcia, Luis vs Palacios Gonzalez, Juan Manuel — 1-0 — Ourense ESP
2015 — Dunn, Andrew c vs Allis, Richard — 1-0 — Shrigley Hall ENG
2018 — Albrecht, Manja vs Przybyl, Zbigniew — 1-0 — ICCF
9…f4 — 0.1% (1 parties)
1981 — Frisk, Ensio vs Sairanen, Pekka — 1-0 — corr NS/II