A21a — King's English Variation, Reversed Sicilian (1925)
1.c4 e5 2.Nc3
Les coups candidats
Ambassadeurs : Zielinski, Sergej (227x), ? (125x), Vetter, Udo (123x), Morley, Paul (112x), Miezis, Normunds (111x), Uhlmann, Wolfgang (110x), Szerlak, Andrzej (89x), Korchnoi, Viktor (86x)
Ambassadeurs : Pribyl, Josef (67x), Hort, Vlastimil (66x), Vetter, Udo (56x), Uhlmann, Wolfgang (54x), ? (47x), Korchnoi, Viktor (44x), Browne, Walter Shawn (40x), Taimanov, Mark (38x)
Ambassadeurs : Miezis, Normunds (74x), Sokolov, Ivan (32x), ? (30x), Hodgson, Julian M (25x), Vatter, Hans-Joachim (24x), Uhlmann, Wolfgang (22x), Bischoff, Klaus (20x), Benjamin, Joel (19x)
Ambassadeurs : Uhlmann, Wolfgang (37x), Anay Barche (33x), Smejkal, Jan (24x), Pilnik, Herman (23x), Polugaevsky, Lev (22x), Strikovic, Aleksa (21x), Ree, Hans (17x), Balashov, Yuri (17x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 2…Nf6 2…Nc6 2…Bb4 2…d6
<1800 10264 58% 24% 5% 4%
1800-2200 47533 53% 27% 6% 6%
2200-2600 37347 51% 27% 11% 8%
2600+ 1845 58% 18% 16% 7%
Évolution par décennie (% des parties)
Décennie N parties 2…Nf6 2…Nc6 2…Bb4 2…d6
1950s 810 49% 24% 0% 20%
1960s 1699 41% 31% 0% 20%
1970s 3908 55% 27% 1% 12%
1980s 6565 49% 30% 6% 10%
1990s 22248 47% 29% 7% 9%
2000s 32868 53% 28% 6% 6%
2010s 38935 58% 25% 7% 5%
2020s 14875 59% 19% 14% 5%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
2…Nf6 58% 59% ▲ +0.8%
2…Nc6 25% 19% ▼ -6.5%
2…Bb4 7% 14% ▲ +7.5%
2…d6 5% 5% -0.4%
Joueurs célèbres
Champions du monde dans cette position
Botvinnik, Mikhail — 10 parties
Karpov, Anatoly — 10 parties
Smyslov, Vladimir — 10 parties
Tal, Mikhail — 10 parties
Kasparov, Garry — 10 parties
Anand, Viswanathan — 10 parties
Kramnik, Vladimir — 10 parties
Carlsen, Magnus — 10 parties
Ju, Wenjun — 10 parties
Ding, Liren — 10 parties
Gukesh D — 10 parties
Hou, Yifan — 2 parties
Fischer, Robert James — 1 partie
Lasker, Emanuel — 1 partie
Smyslov, Vassily — 1 partie
Parties historiques
2…Nf6 — 53.7% (65497 parties)
1950 — Rudenko, Ludmila vs Rubtsova, Olga — 1-0 — Moscow RUS
1950 — Szabo, Laszlo vs Smyslov, Vasily — 1/2-1/2 — Wch candidates
1950 — Florian, Tibor vs Balogh, Janos — 1/2-1/2 — Budapest HUN
1950 — Purdy, Cecil J S vs Madsen, Sami — 1-0 — corr Wch1
1950 — Zalys, Ignas vs Tanguay, Alexandre — 1-0 — Montreal CAN
2…Nc6 — 26.2% (31888 parties)
1950 — Filip, Miroslav vs Maltsev Aleksandre — 1-0 — CSR-BUL Prague CZE
1950 — Piskov, Kamen Penev vs Bobotsov, Milko G — 0-1 — Sofia BUL
1950 — Golombek, Harry vs Steiner, Herman — 1/2-1/2 — Venice ITA
1950 — Haefner Esmie vs Babel August — 1/2-1/2 — ?
1950 — Pirc, Vasja vs Tartakower, Savielly — 0-1 — Amsterdam NED
2…Bb4 — 7.3% (8956 parties)
1957 — Vaitonis, Povilas vs Ridout, Howard — 1-0 — Vancouver
1957 — Joyner, Lionel vs Ridout, Howard — 1-0 — Vancouver
1959 — Mack, Andrew L vs Mowery — 0-1 — ?
1961 — Pachman, Ludek vs Opocensky, Karel — 1-0 — Kosice
1961 — Skacel, Jan vs Altschul, Milos — 0-1 — Kosice
2…d6 — 6.9% (8426 parties)
1950 — Jost, Felix vs Schramm, Eduard — 1/2-1/2 — Saarbruecken
1950 — Milev, Zdravko vs Malchev, Andrej — 1-0 — Sofia BUL
1951 — Ufimtsev, Anatoly vs Gusev, Nikolay N — 1-0 — Tashkent UZB
1952 — Golombek, Harry vs Botvinnik, Mikhail — 0-1 — Budapest HUN
1952 — Anay Barche vs Bolbochan, Julio — 0-1 — Helsinki olm