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A07n — KIA Keres Variation
1.Nf3 d5 2.g3 Bg4 3.Bg2 Nd7
Eval: [+0.21]
Les coups candidats
4.c4 — 36.0% (1416 parties)
Ambassadeurs : Campora, Daniel H. (18x), Pavasovic, Dusko (14x), Loginov, Valery A (14x), Dobosz, Henryk (12x), Bagirov, Vladimir (10x), Bezgodova, Svetlana (10x), Hector, Jonny (10x), Seeman, Tarvo (10x)
4.O-O — 26.6% (1048 parties)
Ambassadeurs : Pavasovic, Dusko (14x), Speelman, Jon S (13x), Shirov, Alexei (13x), Rublevsky, Sergei (11x), Vaganian, Rafael A (8x), Kharlov, Andrei (8x), Damljanovic, Branko (8x), Kramnik, Vladimir (7x)
4.d4 — 17.0% (669 parties)
Ambassadeurs : Pavasovic, Dusko (10x), Shabalov, Alexander (7x), Hector, Jonny (7x), Kunin, Vitaly (5x), Yagupov, Igor (5x), Martinovic, Slobodan (4x), Badea, Bela (4x), Yandemirov, Valeri (4x)
4.d3 — 11.5% (452 parties)
Ambassadeurs : Foisor, Cristina-Adela (8x), Campora, Daniel H. (7x), Trabert, Bettina (6x), Charochkina, Daria (6x), Yagupov, Igor (5x), Haub, Thorsten Michael (5x), Geveke, Michael (4x), Buese, Ralf (4x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4.c4 4.O-O 4.d4 4.d3
<1800 33 21% 36% 27% 12%
1800-2200 638 28% 24% 24% 16%
2200-2600 2877 38% 26% 16% 11%
2600+ 189 42% 38% 6% 4%
Évolution par décennie (% des parties)
Décennie N parties 4.c4 4.O-O 4.d4 4.d3
1950s 2 50%
1960s 31 52% 35% 10%
1970s 51 45% 33% 4% 12%
1980s 67 54% 18% 15% 12%
1990s 625 39% 30% 15% 12%
2000s 1090 36% 28% 16% 16%
2010s 1553 37% 27% 18% 10%
2020s 517 26% 20% 21% 4%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4.c4 37% 26% ▼ -10.3%
4.O-O 27% 20% ▼ -7.4%
4.d4 18% 21% ▲ +3.2%
4.d3 10% 4% ▼ -6.8%
Joueurs célèbres
Champions du monde dans cette position
Kramnik, Vladimir — 10 parties
Gukesh D — 5 parties
Ju, Wenjun — 4 parties
Smyslov, Vladimir — 2 parties
Kasparov, Garry — 2 parties
Tal, Mikhail — 1 partie
Ding, Liren — 1 partie
Parties historiques
4.c4 — 36.0% (1416 parties)
1954 — Vatnikov, Josif E vs Chistiakov, Alexander — 1-0 — Moscow RUS
1962 — Bouwmeester, Hans vs Keres, Paul Petrovich — 1/2-1/2 — The Hague NED
1962 — Benko, Pal vs Bisguier, Arthur B — 1/2-1/2 — New York, NY USA
1963 — Flesch, János vs Pogats, Jozsef Jr. — 1/2-1/2 — Budapest HUN
1963 — Olafsson, Fridrik vs Keres, Paul Petrovich — 0-1 — Los Angeles, CA USA
4.O-O — 26.6% (1048 parties)
1962 — Lengyel, Levente vs Portisch, Lajos — 1/2-1/2 — Budapest HUN
1962 — Benko, Pal vs Keres, Paul — 1-0 — Willemstad CUW
1962 — Benko, Pal vs Keres, Paul Petrovich — 1-0 — Curacao AHO
1962 — Baumeister, Christoph vs Keres, Paul Petrovich — 0-1 — Varna BUL
1962 — Bouwmeester, Andre vs Keres, Paul Petrovich — 0-1 — Varna BUL
4.d4 — 17.0% (669 parties)
1964 — Stefanov Josif vs Rautenstrauch, Hans Hubert — 1-0 — Krakow POL
1967 — Garcia Orus, Francisco vs Merino Mejuto, Domingo — 1-0 — Palma de Majorca ESP
1969 — Andersson, Ulf vs Ligterink, Gert — 1/2-1/2 — Groningen ch EU jr p
1975 — Prcic, Mike vs Reppert, Victor — 1-0 — Arizona
1978 — Augustin, Josef vs Tichy, Vladimir — 0-1 — Marianske Lazne
4.d3 — 11.5% (452 parties)
1970 — Schumacher, Helmut vs Magnusson, Olafur — 0-1 — Siegen olm Siegen GER
1971 — Quinteros, Miguel A. vs Schweber, Samuel — 1-0 — Mar del Plata ARG
1972 — Vadasz, Laszlo vs Tompa, Janos — 0-1 — HUN
1974 — Palatnik, Semon vs Sokolov, Sergey M. — 0-1 — Daugavpils LAT
1975 — Zwaig, Arne vs Thorsteinsson, Bjorn — 1/2-1/2 — Reykjavik ISL