CUBI generates its own “alpha-cubes” that have letters on all six faces. All letters have the same score initially to avoid any bias in usage. Each face is color coded and etched with a score multiplier for the letter on the face. Word score multipliers are awarded when 3 or more adjacent letters have the same color code. Longer color patterns are awarded higher multipliers. Cubes can be rotated to access letters on other faces. Words must contain 3 or more letters.