The Queen's Indian Defense: Main Line 4.g3 System - Maxim Chetverik (K-5794)

The O’Kelly variation of the Sicilian Defence (1 e4 c5 2 Nf3 a6) is a wonderful system for those who enjoy playing Sicilian positions but don’t want to get bogged down in heavy theory. The O’Kelly relies far more on an understanding of general strategic ideas and middlegame planning than on rote memorisation of opening moves. One of the benefits of the O’Kelly is that White’s natural continuation of 3 d4, although very frequently played, permits Black confortable development and an easy game.

The King’s Indian Defence is one of the great classical counter-attacking openings. The most aggressive world champions (including Mikhail Tal, Bobby Fischer and Garry Kasparov) have all scored brilliant knockout victories with this opening.