Silence at the same time took words to frame Quiet, Quiet fell into contemplation, the number on the field is currently 7 4s, one 1!

There are only two areas left in the position where you can still write 4!

In the first area of the nine-square grid, two of the squares can appear 4!

In area 7, there are also only two cells where you can write 4!

But in each area, it is completely unknown where the specific 4 can be written, because it is no longer the time to write 4 on the field.

It can be clearly said that there are countless rules for the combination of numbers written on the field, but there is only one place where 4 can be written!

Quiet frowned, then, where can I write 4?

Sudoku is a logic game and a reasoning game, the difference is how to play.

But now to reason where 4 is, it is completely impossible!

Because there are two places where you can write 4 in the first area, only the second row, the first column, and the second row, the second column!

And the two cells that can write 4 in the seventh area are the first column of the ninth line, and the second column of the ninth row!

In addition to writing 4, the last two cells left in these two areas can also write 2356789!

The famous strong link in Sudoku has been formed!

Because the first column of the first row has been quietly written as 1, when the number in one area is not repeatable, these two cells can write 4, but only one grid must really be written, and the other box is full of countless possibilities!

Both areas are the same, so it's one of the two!

This is also the charm of Sudoku.

"Guess where, now I can write 4?" The silence was low, as if defiant, as if mocking.

Jiang Xiaochuan's pupils shrank instantly, wasn't he just forced by the psychological hint of silence to mess up!

"Don't care where the 4 is, we're here to win this game, don't fall for him, if you write a wrong grid, he will know where the 4 in the remaining two areas is, and he will get two chances to write in a row, so that the situation will go according to his train of thought!" Jiang Xiaochuan's hint made the quiet instantly come back to his senses.

Silence narrowed his eyes, Jiang Xiaochuan's timely reminder woke up Quiet, if Silence really guessed where a 50% chance of 4 was, whether he guessed right or wrong.

Silence will know where the remaining 4 are!

For example, if you write 4 in the first column of the second row, then according to the basic rules of Sudoku, the same number principle cannot appear in the same column in the same row, then the four in the 7th area is in the opposite square!

If you make a mistake in Quiet, you won't find anything for the time being, but the game is dead.

Finally, when you fill in to a certain extent, you can find this error, and then erase it.

But this is undoubtedly a slap in the face for the wrong party, and it will also give the other party two chances to fill in in vain, and in the later stage, two chances to fill in are enough to successfully get a chance to win!

Inverse algorithm, reverse deduction method, elimination method, block method, chain, number pair method, X-wang method, each method that can be used in the field of Sudoku has been gone through in his quiet mind, he took a deep breath and said: "Originally, I thought I would win, it seems that this number game has actually built a model in your mind, in this case, I can only rely on the first move to win, but if you really feel that you are better than me, you are the same as me, come and write 1!" ”

Shen Mo pouted helplessly, what can he do, he won't be fooled!

Quietly pick up the pen and write the number 1 again in the second area, which is two rows and five columns.

This time it was the turn of silent contemplation, and he had the same dilemma as Quiet, before all the numbers were unclear, if by reasoning, then based on Sudoku rules.

The position of writing 1 quietly is: one column in one row, five columns in two rows, and from this information, the effective information that can be known is: the third area, three rows of seven columns and three rows of eight columns, you can choose one of the two to write a 1.

But the problem is that choosing one of the two is the most difficult thing to decide at the moment, but if you don't rely on reasoning, then silence can rely on all the positions of 4 now and write a number arbitrarily!

But if you write the same 1, every time you write down a 1, you may tell Quiet where the next 1 is.

In this way, an offensive and defensive transition will be formed, and he will enter his trap step by step, and write down each number according to his guidance, so he can't write 1 now, so ......, silently looked at the white paper on the field and calculated in his mind, and slowly lifted the pen and shook his head.

It seems to be difficult to put pen to paper.

"What, now it's your turn?" Quiet smiled, which made him breathe a sigh of relief.

"Silence, the way to win in the end is to occupy a line, not what number to write." Bai Youbai stood behind Shen Mo and said loudly.

Silently looked back, the rules were put forward by him, how could he forget, but because there are still many possibilities for the rest of the spaces on the field, he also has to calculate how to fill it, and even after filling it quietly, how to fill it in the next step will form a situation that is beneficial to him.

What should I do?

Because of the restrictions of the rules, it has become much more difficult to fill in the numbers, and although there are many possibilities for filling in silently, they will change because of the quiet filling.

After all, silence is unpredictable in the future!

"4 in two rows and two columns!" Shen Sanshi's eyes were pitch black, and black electricity was surging all over his body.

Shen Mo's pupils suddenly dilated, and his heart 'popped', broken!!

How could he forget Shen Sanshi!

Shen Sanshi has a divine realm cultivation, and he can observe the future in a timeline!

He doesn't understand Sudoku, or even the rules, so if he can name the position of 4, he must have secretly watched the timeline of the game of silence and silence!

"Poof!" Jing Jing laughed directly, and his smug expression was undoubted: "Haha, you think you're helping him?" Do you think he's wondering where 4 is?

You're wrong!

He was thinking about how to write numbers, which can achieve the effect of controlling the field, and now there are still countless possibilities for the change of number combinations in the field, which is not something that the human brain can calculate! If you now directly say where 4 is, it is equivalent to eliminating countless possibilities in this Sudoku game, so as long as you fill in six numbers, there is only one solution left in this game, and I will definitely win by writing through the solution, stupid guy! ”

Quiet is right, that's true, all the 4s on the field are written, then the regular changes of the rest of the numbers will be greatly reduced, and after the two 1s are written, a few numbers are written, and some numbers on the field can only appear in a fixed position!

Inferior position!

Jedi Disadvantage!

Shen Mo glanced back at Shen Sanshi, who was a little stunned when he heard the quiet words, and muttered, "I, I just want to help." ”

Shen Mo frowned, helpless in his heart, his grandson was stupid, what could he do!

Then he picked up the pen and wrote the letter 4 in two rows and two columns, he didn't write this number, he would write quietly, and fix the letters of each grid, isn't this exactly what he wants!

At this moment, Silence has entered the desperate situation of this game!

Quiet, unsurprisingly, wrote 4 in a column of nine rows in the seventh region, and since then, the game is currently dominated by Quiet.

Silently watched all 4 being written, so can it still turn defeat into victory now?

The most basic Sudoku game is to fill in 17 numbers to form a complete game with a unique answer, otherwise there are still many possibilities on the field.

Then every number that goes next is crucial.

In the same column and area of the same peers, in the case of not being able to write repeated numbers, silence can no longer choose to write 1, because with more and more 1, then this game will be more relaxed, even so easy that you can write without thinking about it!

Silently looking at the column with only two numbers on the field, the first column, 1,4, the fifth column 1,4, and the second row can also form a double number 1,4.

So how do you write it?

The number that can be written in the second line is 2356789.

In the same way, the first column, the fifth column, can also be written like this.

There will be a solution, but how to write it, you can control the whole game in a situation that you can calculate?

And the silence can't be pushed out, so as to guide him in the wrong direction?

Lost in thought, he finally sighed, picked up his pen and wrote the number in a column of five lines: 2.

There's no way, he won't write 1 anymore, otherwise the puzzle will get bigger and bigger, although only 1 and 4 are written, there are still countless solutions, but now I can only eliminate more solutions, so that Quiet can see part of it clearly.

Quietly smiled and wrote 7 directly under the silence, he didn't have to think about it, because as long as the number was enough for 17, he could already win early with certainty!

The number that has been written on the field is a total of 13!

Shen Mo sighed, if these two 4s didn't come out, Shen Mo could use psychological pressure to prompt Quiet to make mistakes, because he thought farther than Quiet, but because of Shen Sanshi's kindness, this game completely fell into disadvantage!

Silently pick up the pen and write the fourth number in the fourth area: four rows and two columns, 8!

Looking at the eight written silently, quietly write the number in three columns in the first area: 7.

Shen Mo continued to pick up the pen and write in a line of four columns: 6.

Quiet laughed and said, "I'm going to write down the last number, and there's only one algorithm after that." ”

"It depends on whether you can figure it out." Silence replied.

Write 9 in two rows and four columns with a quiet smile.

Since then, there is only one solution to Sudoku!