To call into question; to oppose.
To strive earnestly to hold or maintain; to struggle to defend.
To make a subject of litigation; to defend, as a suit; to dispute or resist, as a claim, by course of law.
To contend.
Controversy; debate.
Struggle for superiority; combat.
A competition.
To counter; to contrast or contradict.
To make a counterplay; to play in response.
A subversive style of gameplay in which a player attempts to overturn the usual rules and conventions of the game.
A game move made as a response.
A counterattack in a different part of the board.