The Sveshnikov Variation is a chess opening that arises from the Sicilian Defense, specifically after the moves 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5. This variation is known for its dynamic and complex positions, often leading to rich tactical battles. It was popularized by Russian grandmaster Evgeny Sveshnikov in the 1970s. In the Sveshnikov Variation, Black aims to challenge White's center while creating imbalances in the pawn structure. The opening often results in active piece play and opportunities for both sides, making it a favorite among aggressive players. It is frequently seen in high-level competitions and has been extensively analyzed in chess literature.