Instructions for Playing Sudoku

Some squares are selectable/editable and some squares are not in each of the nine blocks. There are a total of nine squares in each block. Squares that are not selectable will have a gray background and are used as your starting quide.

The rules are simple, each BLOCK contains 9 SQUARES and you need to have a different number in each block completing the range from 1 to 9 in each block - meaning you cannot have two of the same number in a block. Additionally a ROW, LINE or COLUMN spans/extends across 3 blocks both horizontally or vertically (left to right, top to bottom) and the same rule applies where you cannot have a duplicate number in the same row or column.

• To begin select an empty or editable square and either type the number you want or select the number from the list that will appear.
• Editable/selectable squares are blank with a white background starting out, when you select one or are actively "in" the square it will have a highlighted yellow background color to it until you leave the square and then it will turn back to white and remain with a white background until you check your answers.
• Checking Answers: At any time you can press the "Check Answer" button just below the game blocks and it will highlight, correct, incorrect and incomplete BLOCKS.
  • If the BLOCK turns GREEN, the answers in that block are CORRECT
  • If the BLOCK turns RED, the answers in that block are WRONG
  • If the BLOCK turns YELLOW, it is INCOMPLETE and missing numbers
  • The background color of each block will change each time you check your answers if something in that block has changed "AND" that change causes the status (correct, wrong, incorrect) to change! For example if a block was marked red for incorrect/wrong answer(s) and you made a change in that block, but it was not the correct change - checking the answers again will not change the background color of the block as it is still incorrect. If the change you made was correct the color would change from red to green
• Please Note: if a block is marked wrong and is colored red, "at least one" number in that set of nine is incorrect, if not more.
• Tip: Use the "Compare Answers" Toggle below the game area to view an image of the answers for visual comparison if you need a hint or additional help!