Complex sentence: He won the national Singaporean Chess Championship in 1975,1976,1977 and 1978 and represented Singapore two times in the Asian Team Chess Championships (1977 and 1974).
Split into simpler sentences: He won the national Singaporean Chess Championship in 1975,1976,1977 and 1978. Represented Singapore two times in the Asian Team Chess Championships (1977 and 1974).