Play chess with pieces made of ice, on a salt board. Attach a pen to the branch of a tree in front of an easel, and let the wind make a drawing for you. Develop a non–visually driven system for applying paint to a surface, ensuring that the painting will end up being any which way but the way you wanted it to look. Why, as an artist, would you do these things, play these games with yourself and your audience? Because you would rather admit you don’t have control than pretend that you do, rather create an opening than a closing. The various artists in Game Theory are from Seattle, London, Portland, and Los Angeles, or they are dead (John Cage). Watch the web to see when performances happen in the space. (Cornish College of the Arts Main Gallery, 1000 Lenora St, 726-5151, noon–5 pm, free)