D87j - 9.O-O Nc6 10.Be3 Qc7 - Classical Exchange (1939)

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D87j — Classical Exchange
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 c5 9.O-O Nc6 10.Be3 Qc7
Les coups candidats
11.Rc1 — 83.8% (4244 parties)
Ambassadeurs : Pribyl, Josef (24x), Packroff, Hermann (20x), Ylönen, Olli (19x), Tleptsok, Ruslan (15x), Ederer, Karel (14x), Boll, Peter (13x), Hoegerl, Gerd (13x), Laghetti, Gaetano (13x)
11.Rb1 — 4.8% (244 parties)
Ambassadeurs : Malmstroem, Jan Hendrik (6x), Lautier, Joel (5x), Laine, Jari (4x), Lukacs, Peter (3x), Danner, Georg (3x), Kamsky, Gata (3x), Eldridge, Mark (3x), Ylönen, Olli (3x)
11.Qc1 — 3.8% (191 parties)
Ambassadeurs : Donner, Jan-Hein (5x), Adorjan, Andras (3x), Gulko, Boris (2x), Szabo, Ladislav (2x), Gheorghiu, Florin (2x), Gragger, Anton Fritz (2x), Van Dop, Arend (2x), Gerndorf, Michael (2x)
11.Qc2 — 2.1% (107 parties)
Ambassadeurs : Darazs, Zoltan (2x), Frigerio Marco (1x), Moncelli, Giorgio (1x), Ahmed Said, Mohamed (1x), Omuku, Emmanuel (1x), Van de Bersselaar, H (1x), Boll, Peter (1x), Knudsen, John C (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 11.Rc1 11.Rb1 11.Qc1 11.Qc2
<1800 101 64% 8% 6% 5%
1800-2200 1840 79% 5% 5% 3%
2200-2600 1913 89% 5% 2% 0%
2600+ 72 83% 12% 1% —
Évolution par décennie (% des parties)
Décennie N parties 11.Rc1 11.Rb1 11.Qc1 11.Qc2
1930s 1 — — 100% —
1950s 14 86% — 7% —
1960s 78 83% — 12% —
1970s 324 93% — 5% 0%
1980s 448 91% 3% 2% 2%
1990s 810 83% 3% 4% 3%
2000s 1030 82% 2% 5% 3%
2010s 2147 82% 8% 3% 2%
2020s 213 87% 3% 2% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
11.Rc1 82% 87% ▲ +5.1%
11.Rb1 8% 3% ▼ -5.4%
11.Qc1 3% 2% ▼ -1.4%
11.Qc2 2% 1% -0.4%
Joueurs célèbres
Champions du monde dans cette position
Carlsen, Magnus — 3 parties
Smyslov, Vladimir — 2 parties
Tal, Mikhail — 2 parties
Botvinnik, Mikhail — 1 partie
Gukesh D — 1 partie
Parties historiques
11.Rc1 — 83.8% (4244 parties)
1951 — Sherwin, James T vs Kashdan, Isaac — 0-1 — Forth Worth
1954 — Livshin, Iosif vs Nikitin, Aleksander S — 1-0 — Moscow RUS
1954 — Sokolsky, Boris vs Shamkovich — 0-1 — corr USSR
1954 — Sokolsky, Alexey vs Shamkovich, Leonid — 1-0 — ?
1955 — Akampa Dickson vs Bolshoi Theater — 1-0 — Altshuler
11.Rb1 — 4.8% (244 parties)
1987 — Zueger, Beat vs Kyhle, Bo — 1-0 — Stockholm SWE
1987 — Gutman, Asaf vs Pein, Malcolm — 0-1 — ?
1987 — Gutman, Leni vs Pein, Malcolm — 0-1 — Brussels BEL
1988 — Murey, Jacob vs Gutman, Lev — 1-0 — Paris FRA
1988 — Lautier, Joel vs Khalifman, Alexander — 1/2-1/2 — Groningen NED
11.Qc1 — 3.8% (191 parties)
1939 — Bondarevsky, Igor vs Levenfish, Grigory — 0-1 — Leningrad ch-URS
1952 — Konstantinopolsky, Alexander vs Shamkovich, Leonid — 0-1 — USSR ch-02 5255
1961 — Farias, Sergio A. B. Lopes de vs Nasser Sergio — 1-0 — Vitoria
1964 — Berz, E. vs Gragger, Anton Fritz — 0-1 — cr.
1964 — Miranda, Marcio Marcos do Carmo vs Gragger, Anton Fritz — 0-1 — Tel Aviv ISR
11.Qc2 — 2.1% (107 parties)
1974 — Akkerman E vs Goedbloed, Piet — 1-0 — Rotterdam NED
1980 — Walther, Alexander vs Weder, Axel — 1-0 — DDR-ch H corr
1982 — Behrenfelt vs Ceschia, Ivano — 0-1 — Lucerne SUI
1983 — Van de Bersselaar, H vs Boll, Peter — 0-1 — Den Bosch
1983 — Knudsen, John C vs Sahu Thompson — 1-0 — ASPCC, corr