Don Q. and Sancho Pansa are fighting windmills/giants. In fact, the latter are cubes which can be turned, on some sides being giants, on others being windmills (representing the fact that Don Q. mistook one for the other). Don Q. and Sancho Pansa win if they manage to turn three of the four cubes onto the windmill side, or if Don Q. manages to reach the far side of the board. They lose if Don Q. encounters a giant or windmill.
Don Q. and Sancho Pansa have three possibilities in their move:
- Move Sancho one square and then Don Q. in the same direction
- Move Sancho onto a square with a giant, turn it onto the windmill side, change places with it and then move Don Q. in the same direction
- Move Don Q. one square.
The Giants choose between two possibilities:
- Move a giant one square
- Turn a windmill 90° clockwise, then move Don Q. one square in the direction that mill is facing. After a full turn, the mill will turn into a giant again.

The game was published in a small series (about 30 pieces), made from wood and metal.