The Sveshnikov Sicilian is a popular chess variation of the Sicilian Defence and starts as follows:
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5
This variation was originally called the Lasker-Pelikan Variation but was researched and revitalised from Evgeny Sveshnikov and Gennadi Timoshchenko and is now named after Sveshnikov.
This opening was first played in the chess world championship 1910 by Emanuel Lasker against Carl Schlechter.
Black has a weak square on d5 which gave the opening in earlier times a bad reputation, but the Sveshnikov Sicilian is nowadays a respected and popular opening and was played by famous players like Wladimir Kramnik, Joel Lautier und Péter Lékó.
It was also played in the World Chess Championship 2012 in Game 5 by Boris Gelfand.
If you intend to play the Sicilian with Black then you should study the Sveshnikov Variation as well. Best is to get some decent books about the Sicilian.
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