In September 2006, Korchnoi won the 16th World Senior Chess Championship, held in Italy, with a 9–2 score. Korchnoi scored 7.5–0.5 in his first eight games, then drew his last three games. This is the first world title Korchnoi had won. Viktor achieved another mark by winning the 2009 Swiss championship in Grächen. He scored 7/9 at the open tournament.