How to play watermelon chess?

Watermelon chess is played as follows (introducing chessboard and six rules):

1. Watermelon chess The whole board is round, as shown in the following figure:

2. There is a small concentric circle inside the chessboard, four arcs and two straight lines cross each other (at right angles), and the whole chessboard has 2 1 chess position.

3. Rules of the game 1: At the beginning of the game, both sides decide who will go first by guessing fists.

4. Rule 2 of the game: Both sides alternately move their respective pieces on the chessboard, and can only move to adjacent positions at a time, and it is not allowed to move pieces across positions.

5. Rule 3 of the game: The same chess piece cannot move back and forth more than four times.

6. Rule 4 of the game: the thinking time of each move can't exceed 2 minutes at most; After more than 2 minutes, the opponent has the right to grab the chess.

7. Rule 5 of the game: If the player surrounds the opponent's pieces, he can eat the surrounded pieces.

8. Rule 6 of the game: During the game time, the player who eats the opponent's four pieces first wins.

9. When the two sides are deadlocked, you can press the draw to end the game.