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
Scrabble letter distributions are included here as they are sometimes used in borrowed words. Blanks do not exist in this game. German-language editions of Scrabble contain 102 letter tiles, in the following distribution: Before the current 102-tile set, German language sets had 119 tiles. With the larger sized tile pool, players had eight tiles at a time on their racks, as opposed to the standard seven. The letter distribution for this larger set is: German sets marketed as Foreign Language Editions produced by Selchow and Righter had 100 tiles with the following distribution: Before the Foreign Language Editions produced by Selchow and Righter