Sudoku is a purely logical puzzle that can be solved through systematic elimination without guessing; by identifying where numbers cannot go based on existing placements in rows, columns, and 3x3 boxes, you can progressively fill the grid using techniques like cross-hatching and line box reduction.
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Sudoku Daily Challenge - Purely Logic and Elimination (LBR)- 2.May.26 #sudoku #education #relaxationAdded:
Good morning, guys. Let's start today with a positive brain challenge by playing a daily Sudoku challenge. And today is the 2nd of May, and let's go ahead and play today's daily challenge.
Let's go ahead and start placing number ones. All right, I can see in subgrid one, because of this one cutting across here and this one cutting across here and this one cutting across here, I can go ahead and place for number one. And just like that in subgrid six, this one cutting down here and this one cutting up here, we can place for a one here.
These are start, and I can see in subgrid eight, one cutting across here and this one cutting across here, I can place for a number one here. Because of this one cutting across here, this one cutting across here, and this one cutting across here, I can place for a number one here. And just like this, the last subgrid that is missing a number one is subgrid two, because this one and this one, we can go ahead and place for [music] a number one here. Excellent.
Number ones finished off the grid. We can go ahead and place [music] for number twos in subgrid two over here, because of this two and this two. And all right, we uh have a possibility of a two here. We can't place for any more number twos. We'll come back to twos.
We'll have to recycle, go for threes.
All right, if you can see row one, a three is not possible here because of this three. And a three is only possible over here because the entire row is filled up and only missing place for a three is over here. And also, if after placing this three, we can see this three cutting down here and this three cutting across here, we can place for a three over here. And also, in subgrid nine, because of this three here and this three placement here, we can go ahead and [music] place for a three here. It's It's a great start. We will have to be more, you know, calculative and just as I say this, now if you can see, if you can see row seven, a three cannot come here because of this three and a three cannot come here because of this three. And therefore, the last place for a three is over [music] here. Excellent. And also, just like that, we can solve for number three in separate four because of this three cutting across here, this three cutting down here, this three cutting up here, we can place for a number three.
Excellent. As you know, Sudoku is a no guess game. It's purely logical. Only by elimination, we cannot place simply go ahead and try and place a three there.
So, as you know this, we just going to Moving on to fours.
>> [music] >> So, we finished for two numbers, one and four, which is a great start. Let's see.
Moving on to eights. All right. Now, we're moving from a numbers first to a cell first approach. Let's go ahead and place a number six here. Let's go ahead and place that number two here. And just like that, we can place a number two. We finished for number twos. All right.
We've just a few more numbers. I can place for a number seven over here.
Let's do that and finish for number sevens. Thanks for watching. Have a great day. Thank you, guys.
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