Solution: (1) "My father and I played 14 chess, and I only won 3/7" (according to the knowledge characteristics of Grade Three) can be understood as "Divide 14 chess into 7 pieces on average, and I won 3 pieces".
(2) I won: 14 ÷ 7× 3 = 6 (set)
(3) Dad won: 14-6 = 8 (set)
A: Dad won eight games.