1986 West End stage musical by Tim Rice, Benny Andersson and Bjorn Ulvaeus (5)
I believe the answer is:
chess
(Other definitions for chess that I've seen before include "activity aimed at downfall of a king" , "Ancient war game whose name may have derived for the Persian for 'king'" , "Game involving mates" , "form of battle" , "A game of skill" .)