GATES, Bill (b. 1955). Founder and chairman of Microsoft, Gates is often seen at ACBL tournaments and even occasionally at a world championship. Gates is an enthusiastic supporter of bridge which prompted him to donate $1 million to help promote teaching the game in schools. He plays regularly with Sharon Osberg and can be found on Bridgebase using the name “Chalengr”. Gates and Warren Buffett were named the ACBL Honorary Members in 2010.