A clear and efficient primer for beginners to grasp the fundamentals of logical deduction. However, calling basic scanning a "masterclass" is a bit of an overstatement for such elementary techniques.
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Deep Dive
Sudoku Masterclass - Learn under 10 mins Brainpower - Easy Level! #sudoku #puzzle #games #puzzleAdded:
Good morning, guys. Today, I'm going to play a easy Sudoku. This [music] is for the beginners who want to start playing Sudoku. This is a great video to start [music] off on. And I'm going to play an easy level puzzle, which everyone will feel that they have learned something from this particular video. So, [music] let's look at this puzzle. Now, when you look at it, in Sudoku, there are nine rows, there are nine columns, [music] and there are nine subgrids. In every Sudoku [music] classic Sudoku, there are nine rows, nine columns, and nine subgrids. The only rule of Sudoku is that [music] every row, every column, and every subgrid has to have numbers 1 to 9 without repeating. That's the only reason to do nothing else.
>> [music] >> And so, it's a very logical game. So, we're going to play Sudoku by simply scanning and [music] elimination process. And let's start by doing that.
I'm going to pick a number, and I'm going to pick a number from 1 to 9. I'm going to [music] start with 1, go to 2, 3, 4, 5. It's ascending order. I'm going to pick a number, and I'm going to see where that can go onto the board. As you can see, there are four number ones.
There are There should be nine number ones to complete the board. Now, there are four number ones. So, you can see this number one coming across here, and this number one coming across here.
Therefore, in subgrid nine, the last place for the number one is over here. Because, as you know, the rule of Sudoku is that every row, every column, and every subgrid has to have numbers 1 to 9 without repeating. And so, in subgrid four, I can see this one coming across here, this one coming across here. Therefore, the last place for the number one is over here. Great start. Now, moving on to the subgrid six, because of this one coming across here, this one coming across here, the last place for the number one is over here. And we are not able to finish the last two number ones because a one can come here, here, here, or here. We can actually finish the board.
You see in subgrid eight, because of this four cutting down here and this four cutting down here and this four cutting across here and this four cutting across here. This is three-dimensional scanning. There's a four here and therefore you can see number four has gone out of our board which means we have completed all of our fours. Moving on we have places for five in subgrid seven here because of this five cutting across here and this five cutting across here.
The last place for five is over here and also in subgrid six because of this five cutting across here and this five cutting up here. The last place for five is over here and now to our last number, number one and there's only two places for number one which is here and here and then we finish our puzzle and that's how we have done today's easy puzzle. Thank you for watching and >> [music] >> if you like this video, give it a thumbs up and subscribe.
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