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E20c — Kmoch Variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.f3
Les coups candidats
Ambassadeurs : Volkov, Sergey (89x), Moskalenko, Viktor (77x), Zubac, Marius (53x), Herzog, Klaus (51x), Ambasa Ingrio (45x), Malaniuk, Vladimir P (39x), Shirov, Alexei (34x), Yakovich, Yuri (32x)
Ambassadeurs : Volkov, Sergey (35x), Moskalenko, Viktor (33x), Sundqvist, Christer (20x), Khenkin, Igor (19x), Amico, Rosario (19x), Partos, Charles (17x), Legemaat, Gert (17x), Herzog, Klaus (15x)
4…O-O — 10.9% (1980 parties)
Ambassadeurs : Volkov, Sergey (21x), Choroszej, Aleksander (15x), Sundqvist, Christer (15x), Herzog, Klaus (14x), Zubac, Marius (12x), Kantorik, Marian (11x), Cebalo, Miso (10x), Khenkin, Igor (9x)
4…Nc6 — 2.0% (356 parties)
Ambassadeurs : Volkov, Saveliy (8x), Moskalenko, Viktor (5x), Krizsany, Laszlo (4x), Balogh, Csaba (4x), Volkov, Sergey (4x), Rodrigue-Lemieux, Shawn (4x), wight, david (3x), Chvalovsky, Karel (3x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…d5 4…c5 4…O-O 4…Nc6
<1800 941 55% 23% 12% 1%
1800-2200 7206 52% 31% 11% 2%
2200-2600 8383 51% 33% 11% 2%
2600+ 389 54% 33% 10% 3%
Évolution par décennie (% des parties)
Décennie N parties 4…d5 4…c5 4…O-O 4…Nc6
1950s 67 84% 15%
1960s 220 66% 29% 4%
1970s 91 54% 41% 3%
1980s 457 54% 40% 2% 0%
1990s 1790 59% 33% 3% 2%
2000s 4074 60% 22% 11% 3%
2010s 7579 52% 29% 14% 2%
2020s 3922 41% 44% 10% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…d5 52% 41% ▼ -11.2%
4…c5 29% 44% ▲ +15.3%
4…O-O 14% 10% ▼ -4.2%
4…Nc6 2% 1% ▼ -1.3%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 10 parties
Carlsen, Magnus — 10 parties
Ding, Liren — 10 parties
Anand, Viswanathan — 8 parties
Ju, Wenjun — 8 parties
Tal, Mikhail — 6 parties
Kramnik, Vladimir — 5 parties
Hou, Yifan — 5 parties
Kasparov, Garry — 3 parties
Gukesh D — 3 parties
Karpov, Aleksandr — 1 partie
Parties historiques
4…d5 — 52.5% (9562 parties)
1950 — Muhring, Willem Jan vs Eken, Max — 0-1 — NLD-ch Amsterdam NED
1950 — Kuzminykh, Evgeny vs Koblencs, Alexander — 1-0 — Leningard
1952 — Kuzminykh, Evgeny vs Rovner, Dmitry — 1/2-1/2 — Leningrad RUS
1952 — Rometti, Nicola Barbatto vs Boutteville, Cesar — 0-1 — Charleville Mezieres
1953 — Tartakower, Savielly vs Noradounghian, Georges — 1-0 — Paris FRA
4…c5 — 31.2% (5670 parties)
1953 — Klavins, Janis vs Tal, Mikhail — 1/2-1/2 — USSR
1954 — Korchnoi, Viktor vs Lisitsin, Georgy — 0-1 — URS ch
1956 — Benko, Pal vs Portisch, Lajos — 1-0 — Budapest HUN
1957 — Kortchnoi, V. vs Danielyan, Gurgen — 1-0 — Sverdlovsk
1957 — Spassky, Boris Vasily vs Cherepkov, Alexander V — 1/2-1/2 — Leningrad RUS
4…O-O — 10.9% (1980 parties)
1964 — Martin, Ian vs Sarosy, Zoltan L — 0-1 — Scarborough CAN
1964 — Forintos, Gyozo V vs Ozsvath, Andras — 0-1 — Budapest HUN
1965 — Sanguinetti, Ricardo vs Faleg, Alberto — 1/2-1/2 — Mar del Plata ARG
1965 — Gheorghiu, Florin vs Drozd, Carol — 1-0 — Bucharest ROU
1966 — Asfora, Eduardo Hasbum vs Theophilo, Alberto — 1/2-1/2 — ?
4…Nc6 — 2.0% (356 parties)
1989 — Malaniuk, Vladimir P vs Ubilava, Elizbar — 1/2-1/2 — Alma Ata KAZ
1989 — Roeschlau, Bernd vs Horvath, Tamas — 0-1 — Bad Orb op
1990 — Moskalenko, Viktor vs Douven, Rudy — 1/2-1/2 — Metz FRA
1990 — Bykhovsky, Avigdor vs Douven, Rudy — 1-0 — Sochi RUS
1990 — Khenkin, Igor vs Dokhoian, Yury — 1/2-1/2 — Werfen,AUT