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The Sicilian Defence is a chess opening that begins with the following moves: . 1. e4 c5. The Sicilian is the most popular and best-scoring response to White's first move 1.e4. The opening 1.d4 is a statistically more successful opening for White because of the high success rate of the Sicilian defence against 1.e4.
Margate Variation of the Sicilian Defence – 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Bb5; Marienbad Variation of the Sicilian Defence, Wing Gambit – 1.e4 c5 2.b4 cxb4 3.a3 d5 4.exd5 Qxd5 5.Bb2; Massachusetts Defence of the Caro–Kann Defence – 1.e4 c6 2.d4 f5; Mediterranean Defence – 1.e4 e6 2.d4 Nf6
The Najdorf Variation [1] (/ ˈ n aɪ d ɔːr f / NY-dorf) of the Sicilian Defence is one of the most popular, reputable, and deeply studied of all chess openings. [ 2 ] [ 3 ] Modern Chess Openings calls it the " Cadillac " or " Rolls-Royce " of chess openings. [ 4 ]
The Sicilian Defence, Chekhover Variation (also sometimes called the Szily Variation or Hungarian Variation) is a chess opening named after Vitaly Chekhover, from the game Chekhover–Lisitsin, Leningrad 1938. [1] It is defined by the moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4
The best known of these, called the Poisoned Pawn Variation, is a line of the Sicilian Defense, Najdorf Variation that begins with the moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6. after which 8.Qd2 Qxb2 usually follows, accepting the "poisoned" b2-pawn. White can also play 8.Nb3, protecting the pawn.
Katalymov Variation of the Sicilian Defence – 1.e4 c5 2.Nf3 b6 – named after Boris Katalymov [71] Keene Defense to the King's Gambit – 1.e4 e5 2.f4 Qh4+ 3.g3 Qe7 – named after Raymond Keene [72] Keres Attack of the Sicilian Defence – 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g4 – named after Paul Keres [73]
For example, Harry Golombek, in Capablanca's 100 Best Games of Chess (1947), gave a question mark to Black's fourth move in the line 1.e4 c5 2.Ne2 d6 3.d4 cxd4 4.Nxd4 g6, a form of the Accelerated Dragon variation of the Sicilian Defence, stating that 4...Nf6 was "necessary" to make White block his c-pawn with 5.Nc3 and thus avoid the Bind.
The Hedgehog Defence, in particular, refers to a variation in the Symmetrical English (1.c4 c5) where Black adopts this setup: 1.c4 c5 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.Nc3 e6 6.0-0 Be7 7.d4 cxd4 8.Qxd4 d6. Other openings where Black often uses the setup include the Queen's Indian Defence, and the Taimanov and Kan Variations of the Sicilian Defence.