D86j - 7…O-O 8.Ne2 Nc6 9.Be3 - Classical Exchange, Simagin Improved (1952)

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D86j — 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.Be3
Les coups candidats
9…b6 — 54.4% (131 parties)
Ambassadeurs : Pein, Malcolm (3x), Valchanov, Mihail (2x), Kozma, Julius (2x), Tukmakov, Vladimir B (2x), Peelen, Piet (2x), Mohr, Stefan (2x), Harper, Bruce (2x), Foisor, Ovidiu-Doru (2x)
9…e5 — 24.1% (58 parties)
Ambassadeurs : Licina Vrabic, Anita (5x), Stohl, Igor (4x), Miklosi, Attila (3x), Nestorovic, Dejan (2x), Orel Music, Simona (2x), Khachiyan, Melikset (2x), Degtiarev, Evgeny (2x), Marin, Mihail (2x)
9…Na5 — 19.1% (46 parties)
Ambassadeurs : Yandemirov, Valeri (5x), Nickoloff, Bryon (2x), Iljin, Timofey (2x), Wexler, Bernardo (1x), Najdorf, Miguel (1x), Thiellement, Andre (1x), Maury, Claude (1x), Spassky, Boris Vasily (1x)
9…... — 0.8% (2 parties)
Ambassadeurs : Spassky, Boris V. (1x), Stein, Leonid (1x), Donner, Jan-Hein (1x), Darga, Klaus (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…b6 9…e5 9…Na5 9…...
<1800 6 67% 33% — —
1800-2200 57 44% 39% 16% —
2200-2600 101 54% 27% 18% —
Évolution par décennie (% des parties)
Décennie N parties 9…b6 9…e5 9…Na5 9…...
1950s 5 60% — 40% —
1960s 19 53% — 37% 11%
1970s 32 69% — 28% —
1980s 30 70% 10% 17% —
1990s 69 45% 36% 16% —
2000s 48 52% 33% 15% —
2010s 29 45% 41% 14% —
2020s 9 67% 22% 11% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…b6 45% 67% ▲ +21.8%
9…e5 41% 22% ▼ -19.2%
9…Na5 14% 11% ▼ -2.7%
9…... 0% 0% +0.0%
Parties historiques
9…b6 — 54.4% (131 parties)
1952 — Valchanov, Mihail vs Milev, Zdravko — 1/2-1/2 — Sofia BUL
1952 — Kottnauer, Cenek vs Sajtar, Jaroslav — 0-1 — Tatranska Lomnica
1957 — Valchanov, Mihail vs Bobekov, Radko — 1/2-1/2 — Sofia BUL
1961 — Shahar, Shimon vs Persitz, Raaphi — 0-1 — Netanya ISR
1963 — Lokvenc, Josef vs Filip, Miroslav — 0-1 — Miskolc Asztalos mem
9…e5 — 24.1% (58 parties)
1988 — Sapi, Laszlo vs Stohl, Igor — 0-1 — Tatran Cup Stary Smokovec SVK
1988 — Sapiecha, Michael vs Vann, Monica S — 1-0 — England
1989 — Lazic, Miroljub vs Bojkovic, Natasa — 1/2-1/2 — Yugoslavia
1990 — Ionescu, Constantin vs Stohl, Igor — 1/2-1/2 — Stara Zagora
1990 — Van der Meiden, Dirk vs Rijnbergen, M — 1/2-1/2 — Haarlem NED
9…Na5 — 19.1% (46 parties)
1952 — Kramer, Hanspeter vs Van Scheltinga, Theo — 1/2-1/2 — Beverwijk NED
1955 — Wexler, Bernardo vs Najdorf, Miguel — 1-0 — Buenos Aires ARG
1964 — Spassky, Boris Vasily vs Stein, Leonid — 1/2-1/2 — Moscow RUS
1964 — Aguayo Cruz, Ramon Uriel vs Spiridonov, Nik. — 1-0 — Tel Aviv ISR
1964 — Pedersen, Eigil vs From, Sigfred — 1/2-1/2 — DEN-ch Holstebro
9…... — 0.8% (2 parties)
1964 — Spassky, Boris V. vs Stein, Leonid — 1/2-1/2 — Zonal tournament
1968 — Donner, Jan-Hein vs Darga, Klaus — 1/2-1/2 — Hengelo NED