D86j - 9.Be3 - Classical Exchange, Simagin Improved (1952)

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D86j — Classical Exchange, Simagin Improved (1952)
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 — 54.7% (133 parties)
Ambassadeurs : Valchanov, Mihail (2x), Kozma, Julius (2x), Tukmakov, Vladimir B (2x), Foisor, Ovidiu-Doru (2x), Gligoric, Sofija (2x), Peek, Elizabeth Adele (2x), Milesi, Laurent (2x), Habulezi Joseph (1x)
9…e5 — 24.7% (60 parties)
Ambassadeurs : Licina Vrabic, Anita (5x), Stohl, Igor (4x), Nestorovic, Dejan (2x), Orel Music, Simona (2x), Khachiyan, Melikset (2x), Degtiarev, Evgeny (2x), Marin, Mihail (2x), Sapi, Laszlo (1x)
9…Na5 — 18.9% (46 parties)
Ambassadeurs : Nickoloff, Bryon (2x), Spassky, Boris Vasily (1x), Stein, Leonid (1x), Kramer, Haije (1x), Bosch van Rosenthal, Edzard (1x), Spiller, Arthur R (1x), Maillard, William E (1x), Cruz, Raul C. (1x)
9…Qd7 — 0.8% (2 parties)
Ambassadeurs : Aubry, Claude (1x), Beauchamp, Jean-Pierre (1x), Starck, Bodo (1x), Gross, Stefan (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…b6 9…e5 9…Na5 9…Qd7
<1800 10 90% 10% — —
1800-2200 75 47% 35% 17% 1%
2200-2600 96 53% 29% 17% 1%
Évolution par décennie (% des parties)
Décennie N parties 9…b6 9…e5 9…Na5 9…Qd7
1950s 5 60% — 40% —
1960s 18 61% — 39% —
1970s 33 70% — 27% 3%
1980s 30 70% 10% 17% 3%
1990s 69 45% 36% 16% —
2000s 49 51% 35% 14% —
2010s 30 43% 43% 13% —
2020s 9 67% 22% 11% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…b6 43% 67% ▲ +23.3%
9…e5 43% 22% ▼ -21.1%
9…Na5 13% 11% ▼ -2.2%
9…Qd7 0% 0% +0.0%
Parties historiques
9…b6 — 54.7% (133 parties)
1952 — Valchanov, Mihail vs Milev, Zdravko — 1/2-1/2 — Sofia BUL
1952 — Kottnauer, Cenek vs Sajtar, Jaroslav — 0-1 — Tatranska ch CZE
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 — 24.7% (60 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, Michel — 1/2-1/2 — Haarlem NED
9…Na5 — 18.9% (46 parties)
1952 — Kramer, Haije vs Bosch van Rosenthal, Edzard — 1/2-1/2 — Beverwijk NED
1955 — Wexler, Bernardo vs Miguel, Nahuel — 1-0 — Buenos Aires ARG
1964 — Spassky, Boris Vasily vs Stein, Leonid — 1/2-1/2 — Moskou zt
1964 — Cruz, Raul C. vs Spiridonov, Nikola — 1-0 — Tel Aviv olm
1964 — Pedersen, Eigil vs From, Sigfred — 1/2-1/2 — DEN-ch Holstebro
9…Qd7 — 0.8% (2 parties)
1979 — Aubry, Claude vs Beauchamp, Jean-Pierre — 1-0 — Montreal CAN
1981 — Starck, Bodo vs Gross, Stefan — 1-0 — Leipzig GER