DUBLZ is played on a 4x4 grid, with numbered tiles that slide when 
  a player moves them. The game begins with two tiles already in the 
  grid, having a value of either 2 or 4, and another such tile appears 
  in a random empty space after each turn. Tiles slide as far as 
  possible in the chosen direction until they are stopped by either 
  another tile or the edge of the grid. If two tiles of the same number 
  collide while moving, they will merge into a tile with the total value 
  of the two tiles that collided. The resulting tile cannot merge with 
  another tile again in the same move. The largest possible tile is 2048.

  If a move causes three consecutive tiles of the same value to slide 
  together, only the two tiles farthest along the direction of motion will 
  combine. If all four spaces in a row or column are filled with tiles of 
  the same value, a move parallel to that row/column will combine the 
  first two and last two. A scoreboard on the lower right keeps track of 
  the player's score. The game is won when a tile with a value of 2048 
  appears on the board or when a player has no legal moves (there are no 
  empty spaces and no adjacent tiles with the same value), the game ends.

                       Available Keys

 "2/4/6/8" on your NumLock Keypad or keys "W/A/D/X".
 "Q" to quit the game.


 The player's score starts at zero, and is increased whenever two tiles 
 combine, by the value of the new tile. The last 10 players to play the 
 game are added to the Scoreboard. The last 10 players to make it to the 
 2048 tile are added the Hall Of Fame.

 To reset all scores and bulletins to zero, just delete all SCORE.* and 
 HOF.* files in the \SCORES directory.