Abstract: The present invention provides a dihydropyridazine-3,5-dione derivative or a salt thereof, or a solvate of the compound or the salt, a pharmaceutical drug, a pharmaceutical composition, a sodium-dependent phosphate transporter inhibitor, and a preventive and/or therapeutic agent for hyperphosphatemia, secondary hyperparathyroidism, chronic renal failure, chronic kidney disease, and arteriosclerosis associated with vascular calcification comprising the compound as an active ingredient, and a method for prevention and/or treatment.

Abstract: A sense of discomfort brought to a user of a game when notification information is presented can be reduced. A system according to an embodiment may include an information storage unit storing various information, a start instruction receiving unit receiving a start instruction to start the game from a user, an event information specifying unit specifying, in response to the reception of the start instruction, one or more pieces of event information occurring as the game progresses, and a notification information specifying unit specifying one or more pieces of notification information including information about services other than the game to be notified to the user. The system may further include an event history presenting unit presenting event history information including the specified event information and the notification information as event histories respectively to the user, and a reward providing unit providing reward to the user.

Abstract: A program causes a computer to execute a process of, upon receiving a content request from a player, consuming the lottery point associated with the player, and executing a lottery game for the player, upon receiving a support request for supporting a first player playing the lottery game by a second player, giving a lottery point to the first player and the second player without consuming a play point of the second player, upon receiving a special support request for supporting a first player playing the lottery game by a second player, consuming a play point of the second player and giving a lottery point to the first player and the second player, and limiting the number of executions of the support process to a predetermined number or smaller and permitting execution of the special support process a number of times larger than the predetermined number.

Abstract: A server device is connected with a player terminal that displays a game screen including a game content arrangement area in a manner capable of communicating information. The server device includes: a storage unit configured to store a plurality of pieces of game content including special game content; an arrangement unit configured to arrange game content in the game content arrangement area; a determination unit configured to determine whether the special game content is included in a plurality of pieces of game content; and a grant unit configured to grant a part of game content selected from the plurality of pieces of game content, or all of game content to a player when the special game content is not included, and to grant only a part of game content selected from the plurality of pieces of game content to the player when the special game content is included.

Abstract: A program causes a computer to execute a process of, upon receiving a content request from a player, consuming the lottery point associated with the player, and executing a lottery game for the player, upon receiving a support request for supporting a first player playing the lottery game by a second player, giving a lottery point to the first player and the second player without consuming a play point of the second player, upon receiving a special support request for supporting a first player playing the lottery game by a second player, consuming a play point of the second player and giving a lottery point to the first player and the second player, and limiting the number of executions of the support process to a predetermined number or smaller and permitting execution of the special support process a number of times larger than the predetermined number.

Abstract: A program causes a computer to execute a process of, upon receiving a content request from a player, consuming the lottery point associated with the player, and executing a lottery game for the player, upon receiving a support request for supporting a first player playing the lottery game by a second player, giving a lottery point to the first player and the second player without consuming a play point of the second player, upon receiving a special support request for supporting a first player playing the lottery game by a second player, consuming a play point of the second player and giving a lottery point to the first player and the second player, and limiting the number of executions of the support process to a predetermined number or smaller and permitting execution of the special support process a number of times larger than the predetermined number.

Abstract: A program causes a computer to execute a process of, upon receiving a content request from a player, consuming the lottery point associated with the player, and executing a lottery game for the player, upon receiving a support request for supporting a first player playing the lottery game by a second player, giving a lottery point to the first player and the second player without consuming a play point of the second player, upon receiving a special support request for supporting a first player playing the lottery game by a second player, consuming a play point of the second player and giving a lottery point to the first player and the second player, and limiting the number of executions of the support process to a predetermined number or smaller and permitting execution of the special support process a number of times larger than the predetermined number.

Abstract: A server device is connected with a player terminal that displays a game screen including a game content arrangement area in a manner capable of communicating information. The server device includes: a storage unit configured to store a plurality of pieces of game content including special game content; an arrangement unit configured to arrange game content in the game content arrangement area; a determination unit configured to determine whether the special game content is included in a plurality of pieces of game content; and a grant unit configured to grant a part of game content selected from the plurality of pieces of game content, or all of game content to a player when the special game content is not included, and to grant only a part of game content selected from the plurality of pieces of game content to the player when the special game content is included.

Abstract: A server device is connected with a player terminal that displays a game screen including a game content arrangement area in a manner capable of communicating information. The server device includes: a storage unit configured to store a plurality of pieces of game content including special game content; an arrangement unit configured to arrange game content in the game content arrangement area; a determination unit configured to determine whether the special game content is included in a plurality of pieces of game content; and a grant unit configured to grant a part of game content selected from the plurality of pieces of game content, or all of game content to a player when the special game content is not included, and to grant only a part of game content selected from the plurality of pieces of game content to the player when the special game content is included.

Abstract: A server device is connected with a player terminal that displays a game screen including a game content arrangement area in a manner capable of communicating information. The server device includes: a storage unit configured to store a plurality of pieces of game content including special game content; an arrangement unit configured to arrange game content in the game content arrangement area; a determination unit configured to determine whether the special game content is included in a plurality of pieces of game content; and a grant unit configured to grant a part of game content selected from the plurality of pieces of game content, or all of game content to a player when the special game content is not included, and to grant only a part of game content selected from the plurality of pieces of game content to the player when the special game content is included.