Scrabble skill level) board. There are numerous variations of the game. While they are similar to the original "Scrabble" game, they include minor variations. For example, Literati draws random tiles instead of providing a finite number of tiles for the game, assigns different point levels to each letter and has a slightly different board layout, whereas Lexulous assigns eight letters to each player instead of seven. Words with Friends uses a different board layout and different letter values, as does Words of Gold. Duplicate Scrabble is a popular variant in French speaking countries. Every player has the same letters on the
Scrabble generally excluded from the OSPD4 but allowed in club and tournament play. Proper nouns and other exceptions to the usual rules are allowed in some limited contexts in the spin-off game "Scrabble Trickster". Names of recognized computer programs are permitted as an acceptable proper noun (For example, WinZIP). There are two popular competition word lists used in various parts of the world: TWL and SOWPODS (also called "Collins" or "CSW"). The memorization of two-letter words is considered an essential skill in this game. The North American 2006 "Official Tournament and Club Word List, Second Edition" (OWL2) went into official use