is a two-player abstract strategy game
, invented by David Smith in 1980
. The game is played with a set of tiles on which sections of black and white track join adjacent edges on one side and opposite edges on the other side. Players place tiles adjacent to those already in play such that the colours of the tracks match. The objective is to get a loop or line of your colour while attempting to stop your opponent in their colour.
Trax World Championships have been held since 1986.