Patent ID: 8827789

Claim:
An information processing device comprising: a storage unit configured to store multiple game contents; a deck forming unit configured to select a predetermined number of game contents from the multiple game contents to form a deck to be used in a game by a player; a replacement content determination unit configured to determine a predetermined number or less of game contents out of the predetermined number of game contents included in the deck to be game contents to be replaced; and a screen data generation unit configured to generate data of a game screen containing proposal information recommending the player to replace the game contents to be replaced, wherein the replacement content determination unit, selects a predetermined number or less of replacement candidate game contents out of the predetermined number of game contents included in the deck, calculates in advance, for each pattern of replacement candidates, an assumed effective parameter value of each of possible decks that can be formed if the selected replacement candidate game contents are replaced by using parameter values set for each of game contents included in the possible deck, wherein the parameter values set for the each of the game contents included in the possible deck are associated with an attack value, wherein the assumed effective parameter value is calculated based on the attack value and a multiplier associated with a combination of game contents, obtains an expected value of an effective parameter value on the basis of the calculated assumed effective parameter values, and determines the replacement candidate game contents with a highest expected value of the effective parameter value to be the game contents to be replaced.