When the game detects no available moves. Rather than ending the game immediately, Allow the player the opportunity to review the game and play a booster to solve the no move available problem. A simple pause screen could state no available moves detected, end game? Y or N. If the player choses Y, the game would end as usual, but If the player choses N they could review the screen and determine if a booster could solve the problem and allow play to continue. This could help players preserve their streak. This happens most often when a game is first started, before a player even has a chance to make a move.