Cube Riddle is a fun and challenging puzzle game, where the player has to remove cubes from the game board in a specific combination in order to win the game. The more cubes of the same color that can be removed together, the more rewards the player gets.

Here is an overview of the rewards:

1 cube of the same color: -1 coin
2 cubes of the same color: -1 coin
3 cubes of the same color: +1 coin
4 cubes of the same color: +2 coins
5 cubes of the same color: +3 coins
6 cubes of the same color: +4 coins
7 or more cubes of the same color: +1 diamond

At the start of every game, a player has 0 coins. To remove 1 or 2 cubes of the same color, the player has to spend coins. Matching 3 cubes or more will earn the player coins, and 7 or more cubes will earn the player a diamond. Diamonds can be used to advance to the next level.

Each level in Cube Riddle will increase in difficulty by adding more colors and more cubes. In each round, Cube Riddle challenges the player to match cubes in a specific combination to gain enough rewards to win a game.