This is a match three game based on the story of The Wonderful Wizard of Oz.
You use the mouse to swap two gems to create a group of three or more of the
same item. What you are trying to do is remove pieces of the yellow brick
road. In some gems are trapped Munchkins. Freeing five of these will allow you
to move two gems in a diagonal direction. During the game, you will encounter
obstacles like locks and vines. Locks prevent the gem from moving and are
cleared by making a match with the trapped gem or using a bonus item. Vines do
not stop the gems from moving but must be cleared before you can clear the
bricks.

Some of the bonus items are:

* Lion: Destroys items in the neighboring squares.
* Keys: Can unlock one licked gem.
* Fireball: Destroys all the gems of a horizontal row.
* Tin axe: Destroys the bricks in one square.
* Tornado: Destroys all the gems on a vertical row.
* Double axe: Destroys the bricks of the neighboring squares.
* Star: Destroys the gems, bricks, locks and/or vines of one square.

The Wonderful Wizard of Oz