A form of pairs duplicate game, usually of high competition level, played as round-robin tournament with small number of pairs (typically 16) playing relatively long matches (typically 16-32 boards). Usually scored in IMPs with conversion to Victory points.
Off-road competition in which the rider has to surmount obstacles. Points are deducted if the rider puts his feet on the ground, goes outside the marked course, or fails to clear an obstacle.
A type of course designed to test the skill of the rider through a series of very tight obstacles. The obstacles usually consist of rocks, streams, cars, logs and every other impassable barrier available.