Challenge The Game [iPhone]

1- Backgammon is one of the oldest known boardgames. The object of the game is to move your pieces along the board's triangles and off the board before your opponent does. There are a few different ways that this game is played. In this version your pieces move counterclockwise from the upper right, while your opponent's move clockwise from the bottom right. You can change the direction of play in Options if you prefer going from bottom right to top right. Additionally, the game is sometimes played in rounds with a scoring system deciding the eventual winner. In this version, each round is its own game, with no point scoring involved.
2-Checkers, Pieces can only move diagonally on the dark squares, the light squares of the board are never used. A normal move is moving a piece diagonally forward one square. The initial pieces can only move forward diagonally, not backwards. You cannot move onto a square that is occupied by another piece. However, if an opponent piece is on the square diagonally in front of you and the square behind it is empty then you can (and must!) jump over it diagonally, thereby killing it. If you land on a square where you can kill another opponent piece you must jump over that piece as well, immediately. One turn can kill many pieces.
3- The objective in Minesweeper is to find and mark all the mines hidden under the grey squares, in the shortest time possible. This is done by clicking on the squares to open them.
4- Sudoku is a number puzzle where the objective is to fill every row, column and box (3x3 grid) with the numbers from 1-9. Each unit (row, column or box) must have each number exactly once. The game starts with a number of fields pre-filled. Your objective is to fill the rest of the fields without breaking the constraints that each number can only be once in each row, column and box.
5- There are three different types of piles in FreeCell Solitaire. They are:The Free Cells: The four piles in the upper left corner.\n The Foundations: The four piles in the upper right corner.\n The Tableau: The eight piles that make up the main table. The Setup: The Tableau piles are numbered from 1 to 8, piles 1-4 start with 7 cards each, piles 5-8 with 6 cards each. The Foundations and Free Cells are empty.The Objective: To win FreeCell, you must get all the cards onto the Foundations. The Foundations are ordered by suit and rank, each Foundation has one suit and you must put the cards onto them in the order Ace 2 3 4 5 6 7 8 9 10 Jack Queen King.
6- Triangles is a very simple game. The objective is to make as many triangles as possible, by drawing lines from one dot to another, Players take turns, in each turn a player must draw one line. A line may not cross other lines or touch other dots than the two that it's connected to. If a player closes a triangle with his line then he gets the point for that triangle and it gets colored with his color.