A lottery game card including a plurality of squares distributed in a
matrix format, and a plurality of game indicia initially covered by a
removable material. Each squares of the matrix are populated with a game
symbol and some of the squares of the matrix are covered by the removable
material, forming a Sudoku puzzle. A player may play the Sudoku puzzle
using the matrix. The player may remove the removable material from the
game indicia and covered squares. If the squares identified by the game
indicia form a predefined pattern, a prize is awarded to the player.