The World Chess Championship 1984 match between Anatoly Karpov and Garry Kasparov had many ups and downs, and a very controversial finish. Karpov started in very good form, and after nine games Kasparov was down 4–0 in a "first to six wins" match. Fellow players predicted he would be whitewashed 6–0 within 18 games. Kasparov won games 47 and 48 to bring the scores to 5–3 in Karpov's favour. Then the match was ended without result by Florencio Campomanes, the President of Fédération Internationale des Échecs (FIDE), and a new match was announced to start a few months later. The termination was controversial, as both players stated that they preferred the match to continue. Announcing his decision at a press conference, Campomanes cited the health of the players, which had been strained by the length of the match..
The second Karpov-Kasparov match in 1985 was organized in Moscow as the best of 24 games where the first player to win 12.5 points would claim the World Champion title. The scores from the terminated match would not carry over. But in the event of a 12–12 draw, the title would remain with Karpov. On 9 November 1985, Kasparov secured the title by a score of 13–11, winning the 24th game with Black, using a Sicilian defence. He was 22 years old at the time, making him the youngest ever World Champion, and breaking the record held by Mikhail Tal for over 20 years. Kasparov's win as Black in the 16th game has been recognized as one of the all-time masterpieces in chess history.