A Canadian has won the fiercely contested 2005 World Scrabble Championships in London.

Adam Logan, a 30-year-old multilingual mathematician from Montreal and the Canadian National Scrabble Champion, rose to the top of the international tournament, where 105 players from 41 countries competed.

Logan won three consecutive games against 30-year-old architect Pakorn Nemitrmansuk of Thailand in the best-out-of-five final round.

In the first game, Logan turned what looked like defeat into an overwhelming victory with the word twistier, derived from twisty, to score 140 points.

In the third game, he earned 52 points with the word qanat, meaning an underground irrigation system.

Logan wins $15,000 US, while the runner-up takes home $6,000 US.

Nemitrmansuk came second in the competition two years ago. Logan ended up in fourth place in 1999 and has finished in the top 10 three other times.

Logan played in his first Scrabble tournament at age nine and has been an active competitive player of the word game ever since.