Once you click on the Undo button, the Redo button will appear. Undo/Redo - Clicking the Undo button undoes the most recent change you made to the board. If you leave the play screen the time clock also pauses. The time clock only runs when the board is displayed. Pause - Clicking on the Game button while playing pauses the time clock. Using solve will add a substantial amount of time to the game clock. Any digits you have not yet entered will be shown as pencil marks. Solve - Click on the Hint button, and then click on the Show Solution button to show the solution to the current puzzle. More time is added for hints about more difficult techniques. Using hints adds extra time to the play clock. When a hint is displayed, pressing More will give you additional details, pressing Done will return to play. Hint - Clicking the Hint button, and then selecting Hint, will give you a hint about how to proceed from the current board position. You can click on the pencil button again to turn off pencil mark mode. Then click on on a cell to place a pencil mark for the selected digit in that cell, or remove the pencil mark if there is one already. The pencil button will turn green to show that pencil mark mode is on. Pencil Marks - Click on the pencil button to turn on pencil marks mode. Then, click on the cell you want to clear. It will turn green to show that it is selected. Then, click on a blank cell to enter the selected digit into that cell.Ĭlearing Mistakes - To clear an already entered digit, click on the Erase button. When clicked, the digit button will turn green to show that it is selected. The digit buttons are at the bottom of the board. For information on specific strategies see Sudopedia.Įntering digits - First, click on the digit button for the digit you want to enter. The goal is to enter a digit into every cell so that each row, column, and the nine 3x3 blocks, each contain all of the digits, from 1 to 9, exactly once. Welcome to Enjoy Sudoku for the web by Jason T.
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