Trace is a block puzzle game. Trace will push you for the better all the time. Improve your cognitive abilities such as attention, concentration, logic and reasoning with this game. You must combine the blocks. block puzzle game, cognitive skills, brain training, attention, concentration, logic, reasoning, puzzle game, 2D puzzle, mental agility, problem solving, brain workout, focus, memory, cognitive enhancement, trace game, online puzzle, free puzzle game, single player puzzle