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A08e — Zukertort Opening: Reversed Grünfeld (1937)
1.Nf3 d5 2.g3 c5 3.Bg2 Nc6 4.d4
Les coups candidats
4…e6 — 41.3% (1832 parties)
Ambassadeurs : Loginov, Valery A (13x), Gutman, Lev (12x), Korchnoi, Viktor (9x), Romanishin, Oleg M (9x), Serper, Grigory (8x), Varga, Zoltan (8x), Berczes, Csaba (6x), Kovalevskaya, Ekaterina (5x)
4…Nf6 — 37.3% (1655 parties)
Ambassadeurs : Kengis, Edvins (7x), Koehler, Josef (6x), Sosonko, Gennadi (5x), So, Wesley (5x), Schmitt, Philipp (4x), Merry, Alan B (4x), Vaganian, Rafael A (4x), Kovacs, Laszlo (3x)
4…cxd4 — 15.0% (665 parties)
Ambassadeurs : Nemeth, Antal (3x), Vulinovic, Radivoje (3x), Kestler, Hans-Guenther (2x), Blazi, Janos (2x), Mihet, Vasile-Mihai (2x), Vajda, Attila (2x), Baglady, Hendry (2x), Elgabry, Mohsen (2x)
4…Bg4 — 3.1% (139 parties)
Ambassadeurs : From, Sigfred (2x), Mrnka, Jan (2x), Kontarinis, Andreas (2x), Filchev, Rusko (1x), Pantaleev, Dimitar Dimitrov (1x), Tylor, Theodore Henry (1x), Fairhurst, William (1x), Raymond (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…e6 4…Nf6 4…cxd4 4…Bg4
<1800 252 39% 28% 19% 4%
1800-2200 1909 36% 37% 20% 4%
2200-2600 1725 47% 41% 9% 3%
2600+ 86 48% 48% 5%
Évolution par décennie (% des parties)
Décennie N parties 4…e6 4…Nf6 4…cxd4 4…Bg4
1950s 39 44% 31% 15% 8%
1960s 57 33% 51% 12% 2%
1970s 107 50% 38% 7% 4%
1980s 237 47% 39% 10% 2%
1990s 631 46% 32% 14% 4%
2000s 996 43% 33% 17% 4%
2010s 1469 38% 38% 17% 4%
2020s 900 39% 44% 13% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…e6 38% 39% ▲ +1.5%
4…Nf6 38% 44% ▲ +6.1%
4…cxd4 17% 13% ▼ -4.3%
4…Bg4 4% 1% ▼ -2.2%
Joueurs célèbres
Champions du monde dans cette position
Anand, Viswanathan — 6 parties
Gukesh D — 5 parties
Ding, Liren — 3 parties
Carlsen, Magnus — 2 parties
Ju, Wenjun — 1 partie
Parties historiques
4…e6 — 41.3% (1832 parties)
1950 — Tsvetkov, Alexandar K vs Petrov, Petar — 1/2-1/2 — Sofia BUL
1950 — Partyka, Kazimierz vs Makarczyk, Kazimierz — 0-1 — Belsk ch-POL
1951 — Pirc, Vasja vs Donner, Jan-Hein — 1/2-1/2 — Bad Pyrmont GER
1951 — Wade, Robert G vs Donner, Jan-Hein — 1/2-1/2 — Birmingham ENG
1951 — Partyka, Kazimierz vs Szabo, Stefan — 1-0 — Sopot
4…Nf6 — 37.3% (1655 parties)
1950 — Gligoric, Svetozar vs Michel, Clement Paul — 1/2-1/2 — Mar del Plata ARG
1950 — Bobekov, Radko vs Bobotsov, Milko G — 1-0 — Sofia BUL
1950 — Tsvetkov, Alexandar K vs Bobotsov, Milko G — 1-0 — Sofia BUL
1950 — Soluch, Leopold vs Michel, Paul — 1-0 — Vienna AUT
1952 — Tsvetkov, Alexandar K vs Karastoichev, Emil — 1-0 — Sofia BUL
4…cxd4 — 15.0% (665 parties)
1951 — Barrett, John Frederick vs Pike, John Edward — 1-0 — West London CC
1951 — Elstner, Rudolf vs Ruppe, Otto — 1-0 — Schwerin GER
1952 — Boxall, Ronald Frank vs Abiolla James — 1/2-1/2 — Chester
1956 — Andersen, Ejnar vs Nielsen, Bent K. — 0-1 — Copenhagen DEN
1957 — Lombardy, William J vs Kramer, George — 1-0 — New York ch-USA
4…Bg4 — 3.1% (139 parties)
1953 — Tylor, Theodore Henry vs Fairhurst, William — 1/2-1/2 — Hastings ENG
1956 — Raymond vs Curdo, John — 0-1 — New England
1956 — Behrensen, Jorge vs Wexler, Bernardo — 0-1 — Mar del Plata ARG
1961 — Filchev, Rusko vs Pantaleev, Dimitar Dimitrov — 1/2-1/2 — Sofia BUL
1971 — Kontarinis, Andreas vs Koumantarakis, P.. — 0-1 — ?