Keene on Chess

GM Raymond Keene notes that "Traditionally, the title of world champion is decided by a mano a mano battle between the world’s two top players...The sole exception to this rule hitherto was 1948 when Alekhine’s death as incumbent caused an interregnum which necessitated a five-man match tournament to decide the destination of the title."

In his latest "Keene on Chess" column at Chessville, Keene annotates the game Botvinnik-Euwe from this 1948 championship, and also annotates the round two game Kramnik – Morozevich from the recently completed 2007 championship in Mexico City.