Sudoku is a number game that requires no arithmetic - just logical thinking and

the process of elimination. The game is played on a grid consisting of nine rows,

nine columns, and nine boxes. Each row, column, and box contains nine

squares.

The game begins with some of the squares filled in with numbers. The object is

to fill in the remaining squares so that each row, column, and box contains all the

numbers from 1 to 9. No number can appear in any row, column, or box more than

once.

Start by selecting a sudoku puzzle in the window on the right. Use the window's

scroll bar to view all of the puzzles. Click here to clear the board.

The numbered game pieces (above right) can be positioned on the game board

(above left) by simply clicking on a game piece and dragging it. Position the

game pieces so they match the puzzle that you selected.

The color of the game pieces that you just placed on the board can be changed

by simply double clicking each game piece. By doing so, your pre-placed

numbers will be a different color than the missing numbers that you place on

the board.

The Gold Spike ™ Sudoku game board is comprised of eighty-one squares.

Inside each square are nine holes. Gold pegs are placed in the holes to represent

potential numbers for each square.

To place a gold peg in a hole, simply click on the hole. To remove a gold peg from

a hole, simply click on the gold peg.

For more information on Gold Spike ™ Sudoku and solving techniques, please

visit our website:

Looking for additional puzzles to solve? Simple Sudoku makes makes high quality

puzzles and provides tools to help solve them:

If a peg is placed

in the upper-left

hole of a square,

it represents 1.

How to Play Sudoku Online

If a peg is placed

in the lower-right

hole of a square,

it represents 9.