"Ellie ist die uber sex and yew want her ^_^"

- Lalatan

Step 1 |

| Here in step 1 we have an example Sudoku. It has only the level easy but for this example it will be enough. A possible place to begin such a puzzle is to search for a number which appears most frequently. |

Step 2 |

| We will try the 4 first. We look now for regions without a 4 and try to place the 4 by a process of elimination. For this purpose we identify which columns and rows contain a 4 because in the cells of these rows and columns we can't put the 4. If there is only one possible place left in a region, we place the 4 there. That's how we got the two 4s in the picture. This strategy is named cross-hatching. |

Step 3 | |

| We repeat the cross-hatching with the number 5. This is even more effective than with the number 4 because we can place three 5s. |

Step 4 | |

| In this step we can now complete the rows, columns and regions with only two empty cells left. This is easy to do because for one cell of each two cell groups there is only one possible number left. To make this easier to understand, I highlighted it with colors. Doing this now will make cross-hatching and counting simpler in the next steps. |

Step 5 | |

| At the lower left region we can't determine the exact position of the number 6, but we know into which row we have to put it (the three red cells). Therefore we can now place the 6 in the lower right region. Then we can get the 7 and 2 like in step 4. |

Step 6 | |

| Now we can't find any more numbers by cross-hatching. That's why we try it with counting. We count regions, rows, and columns to identify missing numerals for a cell. If we found a cell with only one possible number left after counting we place it into the cell. It is helpful to write little numbers into a cell to help memorize the findings of the counting. By counting, we got six numbers in this step. |

Step 7 | |

| In the same way as step 4 we can now complete a row and a column of our puzzle. |

Step 8 | |

| We can find a few...

| Here in step 1 we have an example Sudoku. It has only the level easy but for this example it will be enough. A possible place to begin such a puzzle is to search for a number which appears most frequently. |

Step 2 |

| We will try the 4 first. We look now for regions without a 4 and try to place the 4 by a process of elimination. For this purpose we identify which columns and rows contain a 4 because in the cells of these rows and columns we can't put the 4. If there is only one possible place left in a region, we place the 4 there. That's how we got the two 4s in the picture. This strategy is named cross-hatching. |

Step 3 | |

| We repeat the cross-hatching with the number 5. This is even more effective than with the number 4 because we can place three 5s. |

Step 4 | |

| In this step we can now complete the rows, columns and regions with only two empty cells left. This is easy to do because for one cell of each two cell groups there is only one possible number left. To make this easier to understand, I highlighted it with colors. Doing this now will make cross-hatching and counting simpler in the next steps. |

Step 5 | |

| At the lower left region we can't determine the exact position of the number 6, but we know into which row we have to put it (the three red cells). Therefore we can now place the 6 in the lower right region. Then we can get the 7 and 2 like in step 4. |

Step 6 | |

| Now we can't find any more numbers by cross-hatching. That's why we try it with counting. We count regions, rows, and columns to identify missing numerals for a cell. If we found a cell with only one possible number left after counting we place it into the cell. It is helpful to write little numbers into a cell to help memorize the findings of the counting. By counting, we got six numbers in this step. |

Step 7 | |

| In the same way as step 4 we can now complete a row and a column of our puzzle. |

Step 8 | |

| We can find a few...

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