A89g - 9.Nd2 - Leningrad, Main Line (1956)

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A89g — Leningrad, Main Line (1956)
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.Nd2
Les coups candidats
9…c5 — 96.9% (683 parties)
Ambassadeurs : Zeitlein, Michael (9x), Kaenel, Hansjuerg (7x), Matulovic, Milan (6x), Ghitescu, Theodor (5x), Reilly, Tim (4x), Kolcak, Marek (4x), Haag, Ervin (4x), Vukic, Milan (3x)
9…b6 — 1.6% (11 parties)
Ambassadeurs : Muhtarov, Leonid (1x), Reitinger, Petr (1x), Sperrer, Reinhard (1x), Topot, Iwan (1x), Bui Ha Duc (1x), Nguyen, Van Thanh (1x), Barnes, Joel (1x), Bartron, Paul (1x)
9…Ng4 — 1.1% (8 parties)
Ambassadeurs : Backe, Peter (2x), Olsson, Krister (2x), Nei, Iivo (1x), Vaskans, Uldis (1x), Berglund, Per-Erik (1x), Breimar, Sven (1x), Gruskovnjak, Tomislav (1x), Olle, Peter (1x)
9…c6 — 0.1% (1 parties)
Ambassadeurs : Plantet, Sebastien (1x), Eichwald, Herve (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…c5 9…b6 9…Ng4 9…c6
<1800 14 86% 14% — —
1800-2200 208 95% 2% 1% 0%
2200-2600 380 99% 0% 1% —
2600+ 1 100% — — —
Évolution par décennie (% des parties)
Décennie N parties 9…c5 9…b6 9…Ng4 9…c6
1950s 7 100% — — —
1960s 25 96% — 4% —
1970s 50 100% — — —
1980s 59 100% — — —
1990s 187 97% 1% 2% 1%
2000s 182 97% 2% — —
2010s 179 94% 3% 2% —
2020s 16 94% 6% — —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…c5 94% 94% ▼ -0.7%
9…b6 3% 6% ▲ +3.5%
9…Ng4 2% 0% ▼ -2.2%
9…c6 0% 0% +0.0%
Joueurs célèbres
Champions du monde dans cette position
Botvinnik, Mikhail — 2 parties
Tal, Mikhail — 1 partie
Parties historiques
9…c5 — 96.9% (683 parties)
1956 — Portisch, Lajos vs Haag, Ervin — 1/2-1/2 — Budapest HUN
1957 — Olafsson, Thorir vs Haag, Ervin — 1-0 — Reykjavik ISL
1958 — Averbakh, Yuri L vs Spassky, Boris Vasily — 1/2-1/2 — Riga LAT
1958 — Salov, Sergej vs Ivanov, Michail Petrovich — 1-0 — ?
1958 — Kluger, Gyula vs Haag, Ervin — 0-1 — HUN-ch Budapest HUN
9…b6 — 1.6% (11 parties)
1996 — Muhtarov, Leonid vs Reitinger, Petr — 1-0 — Decin CZE
2000 — Barnes, Joel vs Bartron, Paul — 1/2-1/2 — Seattle, WA USA
2003 — Sperrer, Reinhard vs Topot, Iwan — 1/2-1/2 — ?
2003 — Bui Ha Duc vs Nguyen, Van Thanh — 1-0 — Can Tho
2008 — Grishina, Irina vs Zarivkina, Victorya — 0-1 — Moscow RUS
9…Ng4 — 1.1% (8 parties)
1960 — Nei, Iivo vs Vaskans, Uldis — 1-0 — Riga LAT
1994 — Berglund, Per-Erik vs Breimar, Sven — 1-0 — ?
1995 — Backe, Peter vs Olsson, Krister — 1/2-1/2 — Ch Sweden (master's
1995 — Backe, Peter vs Olsson, Krister — 1/2-1/2 — Sweden ch
2011 — Gruskovnjak, Tomislav vs Olle, Peter — 1-0 — HUN
9…c6 — 0.1% (1 parties)
1999 — Plantet, Sebastien vs Eichwald, Herve — 1-0 — FRA chT youth