At the beginning of each puzzle, you'll see a board divided into several colored regions. Your goal is to fill the grid so that there is only one Queen in each row, column, and colored region, and no two Queens are touching, even diagonally.

You'll usually start with a Queen or two filled in. Based on this, you can eliminate possible locations for other Queens. Using the rules above, mark all the squares where a Queen can't be by clicking on them once. TIP: You can mark a bunch of tiles at the same time by clicking and dragging vertically or horizontally across several squares.

Once you've figured out where a Queen can be, click that square twice to place a Queen. Now you can eliminate more tiles and place more Queens. Keep going until you've placed one Queen into each colored region. If you've placed all the Queens correctly, you'll automatically win the game. (You don't need to fill in all the X's to win).

Sometimes you'll start without any Queens on the board. In this case, you'll have to look at the board carefully to figure out where the first Queen is!