Backgammon is a strategic board game played by two players. It also has various titles such as five-piece, five-piece, bead, five-eye, five-eye, five-frame, five-stone, five-way, five-link, and Beijing chess; in English, it is called FIR (abbreviation of Five In A Row), Gomoku (the Roman pinyin of "五目" in Japanese), Gobang, connect 5, mo-rphion, etc.; Czech piskvorky, Korean omok, etc.
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【Game Mode】
1. "Human-Machine Battle" selects the difficulty level at the beginning, and supports three difficulty levels: easy, medium, and difficult. The computer at the difficult level takes a long time to think, so it is quite difficult~ The man-machine mode supports first-hand selection, choose the player or the opponent to hold the black and go first.
2. "Two Players Game" This mode simulates two players sitting opposite each other, operating black and white chess pieces on the mobile phone respectively.

【Game Features】
1. "Repentance" supports the function of repentance, which can be used to withdraw a step when a chess mistake is made.
2. The setting option "Background Music" supports switching Canon piano music background music.
3. The setting option "Pawn Sound Effect" supports switching on and off the sound effect when a chess piece falls.

【Gameplay】
1. Select the first move to determine the color chess pieces of both sides;
2. Start with an empty chessboard;
3. The player who holds the black goes first, alternately making moves, each time can only make one move;
4. The chess piece is placed on the cross blank point of the chessboard;
5. After the chess piece is set, it cannot move (this game supports regret chess);
6. The first to form a five-piece connection wins.