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 and blank tiles cannot be used to represent these. Portuguese-language editions of Scrabble contain 120 tiles. While "Ç" is a separate tile, other diacritical marks are ignored. "K", "W", and "Y" are absent, since they are only present in loanwords in Portuguese, and were not even official letters until 2009. Romanian-language editions of Scrabble use these 100 tiles. Some amendment applied in updated version. Previously, the B was worth 8, and the O was worth 1. The original (1982) distribution used the following 100 tiles: Diacritical marks are ignored, so for example "Ă" and "Â" are played as "A". Both