请帮我写一个计算机博弈的六子棋代码

编写一个完整的六子棋游戏代码需要考虑很多细节，这里提供一个简单的Python版本的示例，它实现了基本的游戏规则和用户界面，但并未包含全部的AI算法。你可以在这个基础上扩展和完善。

# 六子棋棋盘大小和初始棋盘
SIZE = 7
board = [[' ' for _ in range(SIZE)] for _ in range(SIZE)]

def print_board():
    for row in board:
        print(' '.join(row))

def valid_move(x, y):
    return 0 <= x < SIZE and 0 <= y < SIZE and board[x][y] == ' '

def make_move(player, x, y):
    if valid_move(x, y) and board[x][y] == ' ':
        board[x][y] = player
        return True
    else:
        return False

def check_win(player):
    # 检查四个方向是否有五子连珠
    directions = [(0, 1), (1, 0), (0, -1), (-1, 0)]
    for dx, dy in directions:
        count = 1
        for i in range(SIZE):
            if board[i][i + dx * count] == player and \
               board[i + dx * (count - 1)][i + dy * count] == player:
                count += 1
                if count == SIZE:
                    return True
            else:
                break
    return False

def play_game():
    current_player = 'X'
    while True:
        print_board()
        print(f"Player {current_player}, enter your move (x, y):")
        x, y = input().split(',')
        x, y = int(x), int(y)
        if make_move(current_player, x, y):
            if check_win(current_player):
                print(f"Player {current_player} wins!")
                break
            current_player = 'O' if current_player == 'X' else 'X'
        else:
            print("Invalid move, please try again.")

play_game()