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B20h — Keres Variation (1933)
1.e4 c5 2.Ne2
Les coups candidats
2…Nc6 — 39.9% (3793 parties)
Ambassadeurs : Kontic, Djordjije (34x), Zhong, Kevin (28x), Knoppert, Erik (25x), Szymanski, Robert (24x), Suetin, Alexey S (21x), Barle, Janez (20x), Mariano, Jose Carlos N (19x), Steffens, Olaf (16x)
2…d6 — 29.2% (2782 parties)
Ambassadeurs : Kubicka, Anna (17x), Suarez Uriel, Adrian (15x), Kupreichik, Viktor D (14x), Vallejo Pons, Francisco (14x), Zhong, Kevin (14x), Kuijf, Marinus (13x), Balashov, Yuri (13x), Kontic, Djordjije (13x)
2…e6 — 12.8% (1218 parties)
Ambassadeurs : Kuijf, Marinus (18x), Kontic, Djordjije (17x), Knoppert, Erik (12x), Reinderman, Dimitri (8x), Cadis, Gheorghe (7x), Zhong, Kevin (7x), Kubicka, Anna (7x), Balinas, Rosendo C (5x)
2…Nf6 — 10.9% (1034 parties)
Ambassadeurs : Szymanski, Robert (39x), Koch, Christian (20x), Kontic, Djordjije (10x), Antonov, Nikola (8x), Ilonen, Ilmari (8x), Fedorov, Mikhail Alex (8x), Kuijf, Marinus (6x), Keres, Paul Petrovich (5x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 2…Nc6 2…d6 2…e6 2…Nf6
<1800 620 41% 30% 13% 8%
1800-2200 3723 41% 30% 13% 8%
2200-2600 3918 38% 30% 13% 13%
2600+ 125 30% 22% 9% 38%
Évolution par décennie (% des parties)
Décennie N parties 2…Nc6 2…d6 2…e6 2…Nf6
1950s 185 46% 22% 4% 21%
1960s 266 44% 23% 12% 9%
1970s 170 40% 31% 17% 8%
1980s 349 35% 33% 22% 6%
1990s 1366 51% 24% 14% 5%
2000s 2221 42% 31% 13% 7%
2010s 3799 36% 30% 12% 13%
2020s 1160 35% 28% 11% 18%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
2…Nc6 36% 35% ▼ -0.6%
2…d6 30% 28% ▼ -2.1%
2…e6 12% 11% ▼ -1.2%
2…Nf6 13% 18% ▲ +4.7%
Joueurs célèbres
Champions du monde dans cette position
Hou, Yifan — 10 parties
Carlsen, Magnus — 6 parties
Tal, Mikhail — 2 parties
Kasparov, Garry — 2 parties
Ju, Wenjun — 2 parties
Botvinnik, Mikhail — 1 partie
Anand, Viswanathan — 1 partie
Karpov, Anatoly — 1 partie
Ding, Liren — 1 partie
Parties historiques
2…Nc6 — 39.9% (3793 parties)
1950 — Madsen, Sami vs Napolitano, Matteo — 0-1 — corr Wch1
1950 — Keres, Paul Petrovich vs Averbakh, Yuri L — 1/2-1/2 — Szcawno Zdroj
1950 — Keres, Paul vs Aronin, Lev — 1-0 — Moskou ch-URS
1950 — Bogoljubow, Efim vs Abhay Sheshrao Thorat — 1-0 — Southsea
1950 — Averbakh, Yuri L vs Korchnoi, Viktor — 1-0 — Tula RUS
2…d6 — 29.2% (2782 parties)
1950 — Tartakower, Savielly vs Stahlberg, Gideon — 1/2-1/2 — Amsterdam NED
1950 — Smyslov, Vasily vs Eugenio, Sarah De Oliveira — 1-0 — Venice ITA
1950 — Cartwright, Albert vs Holowach, Walter — 0-1 — Edmonton CAN
1950 — Rellstab, Ludwig vs Matanovic, Aleksandar — 1/2-1/2 — Bled SLO
1951 — Paoli, Enrico vs Lob, Chris — 1-0 — Venice ITA
2…e6 — 12.8% (1218 parties)
1950 — Averbakh, Yuri L vs Moiseev, Oleg — 1-0 — Moscow RUS
1953 — Adaos, Dimitrios vs Keller-Hermann, Edith — 1-0 — Sofia BUL
1955 — Bialas, Wolfram vs Schmid, Lothar — 1-0 — Hoechst ch-GER
1956 — Afizov, Marsel vs Parak, Frantisek — 1/2-1/2 — Podebrady CZE
1956 — Penrose, Jonathan vs Rantanen, Matti — 1-0 — Moskou olm
2…Nf6 — 10.9% (1034 parties)
1950 — Chistiakov, Alexander vs Averbakh, Yuri L — 1/2-1/2 — Moscow-ch Moscow RUS
1950 — Madsen, Svend Aage vs Bosch van Rosenthal, Edzard — 1-0 — ?
1950 — Tartakower, Savielly vs Van den Berg, Cees — 1/2-1/2 — Amsterdam NED
1951 — Byrne, Ray vs Kramer, George — 1-0 — New York, NY USA
1951 — Byrne, Robert E vs Kramer, George — 1-0 — New York, NY USA