Abstract: A Sudoku board game and method of playing the same for keeping track of candidate numbers. The game board includes a grid of squares and a plurality of predetermined positions within each square. Each of the predetermined positions comprises a hole extending into the game board. Players play according to the rules of Sudoku, but place pegs in the holes to indicate candidate numbers. The numerical value of each peg is indicated by the predetermined position of the hole it is placed in. This method allows candidate numbers to be added to the game board quickly, and allows them to be quickly identified, which is an important strategy of Sudoku.

Abstract: An improved Sudoku board game apparatus includes a game board having a grid of squares and a plurality of predetermined positions within each square for tracking candidate numbers. Each of the predetermined positions comprises a hole extending into the game board. Pegs are placed into the predetermined positions to signify candidate numbers. The above Sudoku board game apparatus provides an improved method of tracking candidate numbers by eliminating the need for a writing instrument or numbered game pieces. It allows candidate numbers, and more specifically patterns of candidate numbers, to be easily recognized, which is an important strategy in solving Sudoku puzzles.