Abstract: Techniques for implementing a guessing threshold for a game challenge are described. In at least some embodiments, a guessing threshold can specify a number of “guesses” that a player is permitted to make during a particular period of time. For example, a guess can be an incorrect solution to a game challenge, a correct solution to a game challenge that was previously provided during a game session, an incorrect solution to a game challenge that is not a legitimate solution attempt, and so on. In implementations, if a player exceeds the guessing threshold during a particular period of time, the player can be warned and/or penalized. For example, the player can be locked out of gameplay for a penalty period and/or the player can be docked a number of points.