Chơi cờ Gomoku (năm quân liên tiếp) trên bàn 9x9, in lại bàn cờ sau mỗi nước đi và luân phiên đánh với người dùng.
Let's play Gomoku. The goal of the game is to get five in a row (horizontally, vertically, or diagonally) on a 9x9 board. Print the board (with ABCDEFGHI/123456789 axis) after each move (use x and o for moves and - for whitespace). You and I take turns in moving, that is, make your move after my each move. You cannot place a move an top of other moves. Do not modify the original board before a move. Now make the first move.
