| 摘要 |
In a game system, a server apparatus (3) that communicates with a plurality of game devices (1) receives a play data element and a card ID of a card (2) whenever a player plays using any of the game devices (1) using the card (2), and generates terminal-provided play data elements indicating the skill of the player in the game on the basis thereof. The server apparatus (3) stores the terminal-provided play data element, the card ID, and a date data item indicating the current date in such a manner that they are mutually associated. The server apparatus (3) transmits, to a mobile terminal (4), which is owned by a second player who designates a first player as the second player's friend, various pieces of information. The information includes date data items indicating dates on which the first player played within a first period, other date data items indicating dates on which the first player played within a second period, and terminal-provided play data elements of the first player which correspond to the other date data items.
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