Extra Letters at Mac App Store analyse

This game is an unscramble game that contains 2,000 common six letter words. Each word has 2 extra letters mixed in. You have to determine what letters belong and which ones dont in order to solve the word. To make it easier we tell you the first letter & last letter of each word. Click the letters to add them to the answer lines. Click them again to remove them from the answer lines. You get 3 minutes to solve each word. Once you skip or timeout on twenty words the game is over.