A.Kosikow " Elementy strategii szachowej " ( K-3496 )

Korchnoi and his Chess Grandchildren features 25 of Viktor Korchnoi’s best games from the latter stages of his glorious career. The latest game is from 2011, when Korchnoi was still potent enough to defeat Fabiano Caruana. 

The candidate move is perhaps the most elusive concept in chess theory. First introduced by Alexander Kotov in his famous book Think Like a Grandmaster, it seems clear and methodical enough: when considering a move, you make a list of "candidates" in your mind, compare their merits, and make your choice. But how do you determine what a candidate move is, and how do you proceed from there?