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ECO B90

Sicilian Defense

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6

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About this opening

The Najdorf is one of the sharpest and most theory-heavy lines in chess. After 5...a6 Black prepares ...e5 or ...e6 while denying White's pieces the b5 square. Long considered Bobby Fischer's and Garry Kasparov's signature weapon.

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