Indonesian Grandmaster (2004). A deaf player who learnt to play chess at 14.
A participant in the Olympiads from 1984 till 2002.
At the 2002 Olympiad Cerdas won a gold medal for the best result at the third board after scoring 8.5 points out of 10 games.
Indonesian Champion in 1987, 1999 and 2002.
Best results: Jakarta Zonal 1993, 2nd; Wismilak Surabaya 2002, 2nd.
Indonesian Grandmaster (2004). A deaf player who learnt to play chess at 14.