We will demonstrate a web-based game, Truffle Hunt, which illustrates rule-based AI systems that reason and solve problems. Players employ computational thinking and develop data that encode rules for an intelligent agent to use. Truffle Hunt is identical to Minesweeper, except that the player probes for truffles rather than mines. The intelligent agent is a boar, who is remarkable at locating truffles but eats them if it gets too close. The player either wins by isolating all ten truffles or...