Q:Facts: - title: grandmaster -lrb- 1973 -rrb- iccf grandmaster -lrb- 1982 -rrb- - country: united states canada - peakrating: 2475 - full name: duncan suttles - name: duncan suttles - birth place: san francisco , california Based on these bullet points, write a short biography describing the life of duncan suttles .
A:
duncan suttles -lrb- born 21 december 1945 -rrb- is a grandmaster -lrb- chess -rrb- of chess who was the strongest canadian player between the eras of abe yanofsky and kevin spraggett .he is one of the few over-the-board grandmasters who also holds the title of grandmaster of international correspondence chess .suttles has been inactive in over-the-board play since the mid-1980s .he currently serves with the software firm magnetar games , as president and chief technologist .