Patent ID: 8409008

Claim:
A game server which manages a player terminal which executes a predetermined match-up game, and a spectator terminal for watching the match-up game, the player terminal and the spectator terminal being connected to the game server via a network, and the game server comprising: a providing unit which provides a current status of the match-up game, which progresses based on moves successively acquired from the player terminal, to the spectator terminal; an acquisition unit which acquires an expected move of a first player thought out by a spectator from the spectator terminal before a next move of the first player of the match-up game is acquired from the player terminal; and an evaluation unit which compares the acquired expected move by the spectator with an actual move acquired from the player terminal, and evaluates the expected move by the spectator as a function of the actual move of the first player and a subsequent move by a second player, wherein the evaluation unit evaluates the acquired expected move by the spectator as high if the acquired expected move does not match the actual move and at least one of the following: a time period elapsed until the first player takes a further subsequent move is greater or equal to a predetermined time period; the first player changes the further subsequent move; or, the further subsequent move is a defensive move.