Answer: chessgame

AnswerCrossword Clue
CHESSGAMEMental sparring match
CHESSGAMEWhere you might get a promotion
CHESSGAMECompetition with kings and queens
CHESSGAMECompetition with knights
CHESSGAMEPlot element of "Casablanca"
CHESSGAMEKings' milieu
CHESSGAMEMetaphor for diplomacy
CHESSGAMEWhat may be drawn with black and white?