Scrabble 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, but the original premium square color scheme is still preferred for "Scrabble" boards used in tournaments. 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
Scrabble variants and the equal sign in a Scrabble-like placement. A similar Scrabble-like arithmetic game was published in Australia, during the 1970s, under the name "Equable". Number tiles were white, arithmetic operations and symbol tiles (including decimal point, fraction-dashes, and percentage) were grey, and players could freely take special equal-sign tiles when they made their move. Clearly the name was meant to evoke the conceptual link with Scrabble. The game-board also had bonus-squares. One of the earlier number-based variants, Numble was a physical board game using numbers and basic mathematic equations (addition, subtraction, multiplication, division). Players form valid equations. Triolet uses pairs