World Chess Championship the organisation of the so-called "Prague Agreement" to reunite the world championship. Kramnik had organised a candidates tournament (won later in 2002 by Peter Leko) to choose his challenger. It was decided that Kasparov play the FIDE champion (Ponomariov) for the FIDE title, and the winner of this match play the winner of the Kramnik–Leko match for a unified title. However, the matches proved difficult to finance and organise. The Kramnik–Leko match, now renamed the "Classical World Chess Championship", did not take place until late 2004 (it was drawn, so Kramnik retained his title). Meanwhile, FIDE never managed to organise
World Chess Championship the winner playing a match against the champion for the title. These have followed a 2-year cycle: qualification for the Candidates in the odd year, the Candidates tournament early in the even year, and World Championship match late in the even year. Magnus Carlsen defeated Anand in the World Chess Championship 2013. Carlsen has successfully defended his title thrice, against Anand in the World Chess Championship 2014, against Sergey Karjakin in the World Chess Championship 2016, and against Fabiano Caruana in the World Chess Championship 2018. His last two defences were decided by tie-break in rapid games. Before 1948 world