Recording medium recorded with program for battle board game continuous transformation, and on-line service method thereof

A board game service method using a network system connected to user terminals and a game server and proceeding a battle by placing game pieces having different shapes or different colors on a game map of game maps with matrix-shape of M row and N column (where M and N are positive integer) alternately one by one, the board game service method comprising:

• (a) registering users through the user terminals to the game server;
• (b) selecting at least one of a battle style, the game map, and the game pieces by the registered users through the user terminal;
• (c) forming conversion pieces by converting opponent game piece into a game piece which is identical to an attacking piece when three or more identical game pieces including a game piece putted at an attacking time forms the attacking piece by being arranged continuously in at least one direction of a horizontal, a vertical, and an oblique direction and when the opponent game piece is placed in conversion points which are adjacent to the attacking piece;
• (d) repeating to form the conversion piece when the attacking piece including at least one of the conversion pieces formed in a step of (c) until no conversion piece is formed;
• and
• (e) determining winner or loser by the dominance number of the game pieces occupying in the game map.