Cook Chicken In A Large Saucepan Of Boiling Water 30 To 40 Minutes; Remove, Let Cool; Remove Skin And Bones; Shred Chicken; Combine With Water Chestnuts; Mix Ingredients For Seasoning Sauce In A Small Bowl; Pour Over Chicken And Mix Well. Refrigerate Until Ready To Serve. To Serve, Peel Cucumber And Halve Lenghtwise; Scoop Out Seed And Cut In Diagonal Slices; Arrange On A Platter With Chicken Mixture