1. Large size chessboard (optional) The chessboard is larger, more difficult, and can better tap into your intelligence2. Four player battles with diverse gameplay options, allowing up to four players to compete simultaneously, as well as three players. Two or even one player can challenge themselves with 20 * 20 squares, 8 * 10 squares, and 15 * 16 squares.3. Easy to learn, simple and fun. Try to use the board to reach the maximum number of piecesSame colored chess pieces only need to be connected at the corner tips. When playing multiplayer games, they surround each other and look for breakthroughs.4. High strategic gameplayDifferent shape features of each chess piece, connectable chess piecesDifferent numbers of pieces can be used in both directions, making it highly playable.5. High quality plastic materials with bright and vibrant red, yellow, blue, and green four-color chess pieces can produce crisp sounds by tapping each other, visually and audibly attracting children to love this game more.