mind game

English Thesaurus

1. deliberate actions of calculated psychological manipulation intended to intimidate or confuse (usually for competitive advantage) (noun.act)

hypernym	:	manipulation, use,
definition	:	exerting shrewd or devious influence especially for one's own advantage (noun.act)

2. any game designed to exercise the intellect (noun.act)

hypernym	:	game,
definition	:	an amusement or pastime (noun.act)