In any pre-2008 version of Microsoft Encarta, press ctrl z to start MindMaze. MindMaze is a built-in quiz shipped with pre-2008 versions of Microsoft Encarta. Players advance through a cursed castle maze, answering questions to move from room to room. The player is transported back in time to break the curse on King Miser the First's castle. The castle consists of several floors, each floor holding 100 rooms in a 10x10 grid. To unlock a door between rooms, the player must correctly answer a multiple-choice, timed trivia questions.