B-667

  In positions with pawns separated by four files, the weaker side loses even if it optimally controls space unless it can place the pawn onto a square which diagonally intercepts the defensive diagonal. A typical position is shown in the following diagram….

GM Vlatko Kovacevic

Vlado Kovacevic is a chess grandmaster and an endgame expert. He very successfully competed on the national team. From 2000 – 2004, he acted as selector of the Croatian Men’s national team. He is also a well-known chess author.