Abstract: [Problem] In the past, a prescribed action could not be executed through an enjoyable operation. [Solution] The information processing device according to one embodiment comprises an output unit for outputting one or more blank areas corresponding to one or more items of blank area information, and one or more objects; a receiving unit for receiving a move command with respect to the object; a mover unit for moving the object in response to a move command received by the receiving unit; and an execution unit for, in cases where the position of an object moved by the mover unit exists in a predetermined positional relationship with respect to the blank area, executing an action that corresponds to the blank area or moved object.

Abstract: [Problem] In the past, a prescribed action could not be executed through an enjoyable operation. [Solution] The information processing device according to one embodiment comprises an output unit for outputting one or more blank areas corresponding to one or more items of blank area information, and one or more objects; a receiving unit for receiving a move command with respect to the object; a mover unit for moving the object in response to a move command received by the receiving unit; and an execution unit for, in cases where the position of an object moved by the mover unit exists in a predetermined positional relationship with respect to the blank area, executing an action that corresponds to the blank area or moved object.

Abstract: [Problem] To selectively provide, in accordance with a user terminal a CAPTCHA that can be easily executed by an operator of the user terminal. [Solution] A web server (11) determines the type of web browser running in a user terminal (13). An authentication server (12) decides a CAPTCHA execution program on the basis of the type of web browser that has been determined. The authentication server (12) executes the decided CAPTCHA execution program to generate problem data and correct answer data. The web server (11) provides the CAPTCHA to the user terminal (13) on the basis of the problem data. The authentication server (12) compares the correct answer data and answer data generated by the user terminal (13), and determines whether authentication has succeeded or failed.

Abstract: [Problem] In the past, a prescribed action could not be executed through an enjoyable operation. [Solution] The information processing device according to one embodiment comprises an output unit for outputting one or more blank areas corresponding to one or more items of blank area information, and one or more objects; a receiving unit for receiving a move command with respect to the object; a mover unit for moving the object in response to a move command received by the receiving unit; and an execution unit for, in cases where the position of an object moved by the mover unit exists in a predetermined positional relationship with respect to the blank area, executing an action that corresponds to the blank area or moved object.

Abstract: [Problem] To selectively provide, in accordance with a user terminal a CAPTCHA that can be easily executed by an operator of the user terminal. [Solution] A web server (11) determines the type of web browser running in a user terminal (13). An authentication server (12) decides a CAPTCHA execution program on the basis of the type of web browser that has been determined. The authentication server (12) executes the decided CAPTCHA execution program to generate problem data and correct answer data. The web server (11) provides the CAPTCHA to the user terminal (13) on the basis of the problem data. The authentication server (12) compares the correct answer data and answer data generated by the user terminal (13), and determines whether authentication has succeeded or failed.