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 is allowable in ordinary Scrabble, EEAIORT would be allowable in Clabbers. A junior version, called "Junior Scrabble", has been marketed. This has slightly different distributions of frequencies of letter tiles to the standard "Scrabble" game. Word games similar to or influenced by "Scrabble" include Bananagrams, Boggle, Dabble, Nab-It!, Perquackey, Puzzlage, Quiddler, Scribbage, Tapple, Upwords, and WordSpot and also Words of Gold. There are also number-based variations, such as Equate (game), GoSum, Mathable, Numble, Numbler, Triolet, Yushino and Numenko. The game has been released in numerous gameboard formats appealing to various user groups. The original boards included wood tiles and many