The story of 'chessboard killer' Alexander Pichushkin, who aimed to kill 64 people - one for each square on the board of the game - but was caught before he could complete his task. The Russian committed his crimes over a 15-year period between 1992 and 2006 before being apprehended, and officers encountered problems substantiating his claims to have killed more than 50 people (thetvdb.com)