MOSCOW - A day after winning Game 7, Boris Gelfand made a mistake that cost him Monday's game, allowing defending champion Viswanathan Anand to even the World Chess Championships final series at 4-4.

Haaretz's website covered the game live move-by-move and will continue to do so for the remaining four games.

Bookies gave Anand 4 to 1 or even 9 to 2 odds of winning the tournament before it commenced, seemingly forgetting that the two rivals know each other from almost every angle. Raymond Keene, the British chess grandmaster, predicted that Gelfand - who had not beaten Anand in 19 years - would not win a single game. However, Keene apparently ignored the motivation of the Israeli, who waited his whole life for this moment.

After Gelfand's win Saturday, the championship seemed within reach, but the illusion lasted only a day.

Gelfand miscalculated, as he admitted, when making his move 14-Qf6, according to the championship's official website. Anand's reply on the 17th move made Black's position immediately hopeless, and Gelfand resigned.

With four games left and the match tied again, Gelfand will have to draw another rabbit out of his hat to restore his advantage. If no one wins before the end, the match will go to a four-game tiebreaker.

The tiebreakers after that include two games of five-minute speed chess, then four games of speed chess and finally a draw for one last game. The won who draws white would get five minutes, and black four minutes. If that ends in a draw, black would be declared champion.