D86k - 7…O-O 8.Ne2 Nc6 9.O-O - Classical Exchange, Simagin Improved (1951)

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D86k — Classical Exchange Simagin Improved
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 Nc6 9.O-O
Les coups candidats
Ambassadeurs : Uhlmann, Wolfgang (13x), Van Leeuwen, Etienne (7x), Ftacnik, Lubomir (7x), Martinovsky, Eugene (6x), Veroci, Zsuzsa (6x), Gburek, Juergen (6x), Hartston, William R (5x), Berndt, Stephan (5x)
9…Na5 — 20.4% (164 parties)
Ambassadeurs : Yandemirov, Valeri (20x), Dubinin, Peter (4x), Zilberberg, Alik (3x), Ilivitsky, Georgy A (2x), Zagorovsky, Vladimir (2x), Isaev, Jamshed (2x), Shariyazdanov, Andrey (2x), Zakharchenko, Alexander (2x)
Ambassadeurs : Khachiyan, Melikset (5x), Razuvaev, Yuri S (4x), Stohl, Igor (3x), Moscoso Sanchez, Fernando (3x), De La Villa Garcia, Jesus Maria (3x), Tukmakov, Vladimir B (3x), Ftacnik, Lubomir (3x), Aronian, Levon (3x)
9…Qd7 — 1.1% (9 parties)
Ambassadeurs : Lilienthal, Andor (1x), Korchnoi, Viktor (1x), Asanov, Bolat (1x), Tseshkovsky, Vitaly (1x), Rubinetti, Jorge (1x), Zarlenga, Marcelo (1x), Ligterink, Gert (1x), Krnic, Zdenko (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…b6 9…Na5 9…e5 9…Qd7
<1800 12 33% 42% 8% —
1800-2200 179 59% 23% 15% 2%
2200-2600 356 65% 14% 20% 1%
2600+ 15 53% 20% 27% —
Évolution par décennie (% des parties)
Décennie N parties 9…b6 9…Na5 9…e5 9…Qd7
1950s 25 44% 52% — 4%
1960s 53 55% 45% — —
1970s 86 91% 7% — 2%
1980s 88 67% 18% 10% 3%
1990s 185 68% 12% 18% —
2000s 191 54% 18% 23% 2%
2010s 142 59% 25% 14% —
2020s 33 45% 36% 18% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…b6 59% 45% ▼ -13.7%
9…Na5 25% 36% ▲ +11.7%
9…e5 14% 18% ▲ +4.1%
9…Qd7 0% 0% +0.0%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 1 partie
Smyslov, Vladimir — 1 partie
Kramnik, Vladimir — 1 partie
Parties historiques
9…b6 — 63.0% (506 parties)
1952 — Pedersen, Ebbe vs Platz, Hans — 1-0 — Helsinki FIN
1952 — Bobotsov, Milko G vs Filchev, Rusko — 1/2-1/2 — Sofia BUL
1952 — Sanchez Alpizar, Luis Alberto vs Pachman, Ludek — 1/2-1/2 — Saltsjobaden SWE
1952 — Gadalinski, Jan vs Sowinski, Jerzy — 0-1 — Katowice POL
1955 — Kozma, Julius vs Sajtar, Jaroslav — 1/2-1/2 — Prague tm Prague CZE
9…Na5 — 20.4% (164 parties)
1951 — Kindij Igor vs Milic, Borislav — 0-1 — Sarajevo BIH
1952 — Boleslawski Zbigniew vs Plater, Kazimierz — 1/2-1/2 — Katowice POL
1953 — Bermudez Adams, William vs Crofut, Francis — 1-0 — San Jose, CA USA
1953 — Levandowsky, A. vs Geller, Alexander — 0-1 — Leningrad RUS
1953 — Schumacher, Helmut vs Dunkelblum, Arthur — 1/2-1/2 — Eupen BEL
9…e5 — 13.9% (112 parties)
1980 — Butnorius, Algimantas vs Tseshkovsky, Vitaly — 0-1 — Krasnodar RUS
1981 — Panczyk, Krzysztof vs Pribyl, Josef — 1/2-1/2 — Warsaw Cup Warsaw POL
1985 — Ftacnik, Lubomir vs Vaganian Rafael Agred — 0-1 — Moscow RUS
1985 — Rashkovsky, Nukhim N vs Yermolinsky, Alex — 1/2-1/2 — Aktiubinsk URS sf
1985 — Rashkovsky, Nukhim N vs Yermolinsky, Alex — 1/2-1/2 — Aktjubinsk
9…Qd7 — 1.1% (9 parties)
1954 — Lilienthal, Andor vs Korchnoi, Viktor — 0-1 — Kiev ch-URS
1974 — Rubinetti, Jorge vs Zarlenga, Marcelo — 1-0 — Zarate
1979 — Spraggett, Kevin vs Hebert, Jean — 1-0 — Boucherville
1981 — Sandvik, Carl vs Osterman, Erkki — 1-0 — corr NS/ME
1985 — Asanov, Bolat vs Tseshkovsky, Vitaly — 1/2-1/2 — Volgograd RUS