Tile-matching video game casual games, tile-matching games are designed to be easily accessible and easy to play, which conflicts with a traditional video gaming ethos that demands games to be challenging and punishing. Match-three games are NP-hard when generalized to an n × n playfield and played such that the player knows in advance all the tiles that will appear, with no random chance involved. In particular, it is NP-hard to determine: Tile-matching video game A tile-matching video game is a type of puzzle video game where the player manipulates tiles in order to make them disappear according to a matching criterion. In
Tile tracking Tile tracking Tile tracking is a technique most commonly associated with the game of Scrabble and similar word games. It refers to the practice of keeping track of letters played on the game board, typically by crossing letters off a score sheet or tracking grid as the tiles are played. Tracking tiles can be an important aid to strategy, especially during the endgame when there are no tiles left to draw, where careful tracking allows each player to deduce the remaining unseen letters on the opponent's final rack. The marking off of each letter from a pre-printed tracking grid as