The rules are pretty simple: you must complete all free cells (in our case the '-' signs) with numbers from 1 to 9, so that each row, each column and each 3x3 area separated by the grid (in our case the '_' and '|' signs) has all numbers from 1 to 9 and only once. Each Sudoku game has only one unique final result.
There are a lot of levels of difficulties, based on the amount of numbers that are predefined and how these numbers are placed.
Here's how we'll play: I give the first game and whoever finishes it first gives a new one (if there's any problem - e.g. can't find a Sudoku game - I'll give it; I have A LOT of Sudoku games)
Oh, and don't get upset if someone finishes a Sudoku game when you have 90% of it done. This is no competition, we just do it for fun, right?
Ok, here's the first one (it's the easiest Sudoku I could find)
Code: Select all
- 3 4 | - - 5 | 6 1 8
- - - | 1 7 8 | 3 4 -
2 8 1 | - - 3 | - 5 -
_____________________
8 2 6 | - 5 7 | - - 4
5 - - | 8 1 9 | - - 3
1 - - | 2 4 - | 7 8 5
_____________________
- 5 - | 7 - - | 4 2 9
- 7 9 | 6 8 2 | - - -
3 1 2 | 5 - - | 8 7 -Code: Select all
tags, so that the text has a fixed width.
I'll give some tips: first, never GUESS. Place a number only when you're sure it fits in the appropriate place.
Now some practical tips:
Let's analyze the Sudoku game I gave above. Let's look in the 3x3 area in the upper-right. Let's try to place the [b]7[/b] number, but where? As you can see, there is only one place you can place it because otherwise you would have two 7s either on the seventh column from the left or the second row from up. So we place it where it belongs:
[code]- 3 4 | - - 5 | 6 1 8
- - - | 1 7 8 | 3 4 -
2 8 1 | - - 3 | - 5 7
_____________________
8 2 6 | - 5 7 | - - 4
5 - - | 8 1 9 | - - 3
1 - - | 2 4 - | 7 8 5
_____________________
- 5 - | 7 - - | 4 2 9
- 7 9 | 6 8 2 | - - -
3 1 2 | 5 - - | 8 7 -Code: Select all
- 3 4 | - - 5 | 6 1 8
- - - | 1 7 8 | 3 4 2
2 8 1 | - - 3 | - 5 7
_____________________
8 2 6 | - 5 7 | - - 4
5 - - | 8 1 9 | - - 3
1 - - | 2 4 - | 7 8 5
_____________________
- 5 - | 7 - - | 4 2 9
- 7 9 | 6 8 2 | - - -
3 1 2 | 5 - - | 8 7 -Code: Select all
- 3 4 | - - 5 | 6 1 8
- - - | 1 7 8 | 3 4 2
2 8 1 | - - 3 | 9 5 7
_____________________
8 2 6 | - 5 7 | - - 4
5 - - | 8 1 9 | - - 3
1 - - | 2 4 - | 7 8 5
_____________________
- 5 - | 7 - - | 4 2 9
- 7 9 | 6 8 2 | - - -
3 1 2 | 5 - - | 8 7 -Have fun!
Note: if it is too easy you can request a difficulty change, I have 7 different types of difficulties (this one is the easiest)
