gam·bit

/ˈɡambət/

noun

noun: gambit; plural noun: gambits

a device, action, or opening remark, typically one entailing a degree of risk, that is calculated to gain an advantage.

"his resignation was a tactical gambit"

synonyms: stratagem, scheme, plan, tactic, maneuver, move, course/line of action, device; More

machination, ruse, trick, ploy, wangle

"the most ambitious financial gambit in history"

(in chess) an opening in which a player makes a sacrifice, typically of a pawn, for the sake of some compensating advantage.