<P> The name is a trademark of Hasbro, Inc. in the United States and Canada; outside these two countries it is a trademark of Mattel . The game is sold in 121 countries and is available in 29 languages; approximately 150 million sets have been sold worldwide and roughly one - third of American and half of British homes have a Scrabble set . There are around 4,000 Scrabble clubs around the world . </P> <P> The game is played by two to four players on a square board with a 15 × 15 grid of cells (individually known as "squares"), each of which accommodates a single letter tile . In official club and tournament games, play is between two players or, occasionally, between two teams each of which collaborates on a single rack . </P> <P> The board is marked with "premium" squares, which multiply the number of points awarded: eight dark red "triple - word" squares, 17 pale red "double - word" squares, of which one, the center square (H8), is marked with a star or other symbol; 12 dark blue "triple - letter" squares, and 24 pale blue "double - letter" squares . In 2008, Hasbro changed the colors of the premium squares to orange for TW, red for DW, blue for DL, and green for TL . Despite this, the original premium square color scheme is still the preferred scheme for Scrabble boards used in tournaments . </P> <P> In an English - language set, the game contains 100 tiles, 98 of which are marked with a letter and a point value ranging from 1 to 10 . The number of points of each lettered tile is based on the letter's frequency in standard English writing; commonly used letters such as vowels are worth one point, while less common letters score higher, with Q and Z each worth 10 points . The game also has two blank tiles that are unmarked and carry no point value . The blank tiles can be used as substitutes for any letter; once laid on the board, however, the choice is fixed . Other language sets use different letter set distributions with different point values . </P>

Is the star in scrabble a double word
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