text: After London In October 2002, Kramnik competed in Brains in Bahrain, an eight-game match against the chess computer Deep Fritz in Bahrain. Kramnik started well, taking a 3–1 lead after four games. However, in game five, Kramnik made what was described as the worst blunder of his career, losing a knight in a position which was probably drawn. He quickly resigned. He also resigned game six after making a speculative sacrifice, although subsequent analysis showed that he had drawing chances in the final position. The last two games were drawn, and the match ended tied at 4–4.
  In February 2004 Kramnik won the Tournament of Linares outright for the first time (he had tied for first with Kasparov in 2000), finishing undefeated with a +2 score, ahead of Garry Kasparov, the world's highest-rated player at the time.
  2004 title defense
  From 25 September 2004 until 18 October 2004, Kramnik retained his title as Classical World Chess Champion against challenger Péter Lékó at Brissago, Switzerland, by barely drawing the match in the last game. The 14-game match was poised in favor of Lékó right up until Kramnik won the final game, thus forcing a 7–7 draw and ensuring that Kramnik remained world champion. The prize fund was 1 million Swiss francs, which was about USD $770,000 at the time. Because of the drawn result, the prize was split between the two players.