It was pitch black in front of him, and only the light from the elevator behind him could barely illuminate the distance of less than two meters or so in front of him.

Therefore, it means that there must be a hint nearby.

As expected, Ann turned around and found three things on the trash can to the left of the elevator door, which should be the clue to the puzzle.

They were a black marker, a flashlight, and a miniature version of the Physics Sword that looked like a crowbar, but was the size of a wrench.

In addition to the role of markers and crowbars is not clear for the time being, the role of the flashlight has been very clear, and players rely on it to move in a dark environment, and An Yizhi opened the item properties to check and found that the flashlight's properties column clearly wrote the words 'can be used for 20 minutes'.

Lighting is time-limited, and how players use that time becomes a shackle, leaving players with not enough time to think.

As for the other things, An Yizhi relied on the light of the elevator that had not yet closed to look around, and did not find anything strange.

With a snap, he pushed the button of the flashlight up, and a beam of light shone on the floor tiles to form an elliptical spot, and at the same time, the elevator door behind An Yizhi closed silently.

It is estimated that the elevator door is not closed to make the player aware of the existence of a flashlight nearby, and since the player has found the flashlight, the basic lighting provided by the elevator door is naturally not needed.

Due to the angle of light emitted, the flashlight spot falls slightly farther away than the floor tiles illuminated by the elevator doors.

"Huh? Got a word? ”

An Yizhi, who was about to lift his foot and turn around, saw that there seemed to be traces of markers, and the floor tiles where the words were written were just outside the range of the elevator door, and An Yizhi only saw it after turning on the flashlight.

"The way to escape is at your feet, but be careful, you only have one chance to choose, and if you choose the wrong one, you will fall into an endless abyss."

This is the text written with a black marker pen on the floor tiles, and An Yizhi couldn't help but complain:

"But Lao Tzu is already in the abyss......"

Then he turned around and walked away, clinging to the wall where the elevator door was located, and his right hand, which was not holding a staff, flashlighted, walked along the wall.

The text you saw earlier is a hint, and there should be more to it.

An Yi pointed to the secret in his heart, first of all, he had to roughly understand how big this dark room was.

He used to measure his stride length when he was idle, which was about 60~65 cm, and he could figure out how far he had walked by counting the number of steps.

However, this time I didn't need this kind of accurate calculation, because An Yizhi estimated the side length of the floor tiles under his feet, and found that all the floor tiles were squares with a side length of one meter, and he only needed to count how many floor tiles he had walked through.

When he walked along the wall and counted to 25, he could not go any further, because in front of him was the wall and the load-bearing columns at right angles between the two walls.

Then he turned right and continued to walk along the wall, this time he counted to 50, and also saw the load-bearing column at the corner of the two walls, but this time there was also a marker scribble on the floor tile next to the load-bearing column, on which '1' was written.

It's clear that this is also a hint, but I don't know what to use for the time being.

Silently keeping the number of floor tiles and this hint in mind, An Yizhi continued to turn right and walk forward against the wall.

When he counted to 10, he happened to see that the tenth floor tile was also marked with the number, '10'.

Moving on, he saw 20.30.40. and 50 written on the floor tiles to the left of the load-bearing columns against the wall.

And this time, he found a '1' again on the floor tile to the right of the load-bearing column.

"If you go any further, will you see 10.20.30 until 50?"

As expected, I came to the end of the road, saw the numbers again, and continued to walk along the wall to return to the elevator.

Now he had a rough grasp of the situation in this dark environment.

The room was empty, nothing but darkness and tiles.

In addition, if you do not count the area occupied by the row of floor tiles and load-bearing walls marked with numbers, assuming that each floor tile is 1 square meter, this room is exactly 50 x 50,250 square meters.

And those marked numbers, An Yizhi also roughly guessed the usefulness.

X-axis vs. Y-axis.

Figuratively speaking, the whole room is like a spreadsheet, and the places marked with numbers are the basis for determining the X and Y axes, which is already a very obvious hint.

Since there are X and Y axes, reminiscent of the previous sentence 'The way to escape is at your feet, but please note that you only have one chance to choose, and if you choose the wrong one, you will fall into the endless abyss', it is obvious that An Yizhi also needs an accurate numerical coordinates.

Thinking of this, Ann pointed out that instead of leaning against the wall, he stepped into the interior of the 'spreadsheet', where he observed clues in the rows and columns.

If you guess correctly, there will soon be hints about the numbers.

Sure enough, he didn't go far before he saw a floor tile with the words '321+536=20' written on it.

This is obviously a miscalculation, but since it was written as a hint on the floor tiles, there may be some other purpose.

Keeping the equation in mind, An Yizhi continued to move forward, finishing this line of floor tiles, not counting the first equation he saw, he also found the following.

143+321=18

536+143=8

321-536+143=？

536-143+321=？

Obviously, the question mark represents the final result of the XY axis coordinates required by An Yizhi, and it is also very clear that the numbers in these calculations are pronouns, and the only thing that can be sure is the result.

"Isn't this just an elementary school student-level equation? Claiming to be a god, the puzzles are only at the level of elementary school students? ”

An Yizhi couldn't help but complain loudly, but unfortunately, no one responded to him in the empty room.

After a little thought, Ann pointed and came up with the answer.

Actually, it's very easy, it's really a problem at the elementary school level.

For example, the first equation, '321+536=20'.

As long as you are not mentally retarded, you can see that the equation is definitely wrong, but in fact, as long as you connect with other equations and look at it from a different angle, you can easily get the result.

Assume 321 as A, 536 as B, and 143 as C, and bring this into all equations.

Will get it eventually.

A+B=20

A+C=18

B+C=8

Finally, it was concluded that A = 15, B = 5, C = 3.

(Please think about the more specific process, I feel that such a simple operation process is written, and it will be complained about making up the number of words)

Then bring the numbers that have been obtained into the following two equations with question marks in the results, and finally get the numbers 13 and 17.

Combined with the hints that the entire room could be seen as a spreadsheet with the previously discovered, these two numbers are the coordinates that An Yizhi needs.

"Too simple, right? The field of wisdom is simply fooling children. ”

An Yizhi complained while following the number mark on the wall to find the intersection of 13 and 17, which should be the so-called 'escape exit'.

But along the way, he found something else, which was also an equation.

223+536=7

189+143=32

In addition to this, there are two equations with a question mark at the end.

189-321+223=？

223+189-536=？

According to the method and number obtained from the previous equation, it is also easy to guess that the results of the last two equations are 16 and 26 respectively.

That's kind of interesting.

So he continued to search the room, and after making sure he didn't find any more hints, he began to think about what the numbers meant.

Of course, the flashlight was turned off by him, there were no hints or clues that might be dangerous, so there was no need to worry about being attacked in the dark, and he felt that the flashlight was not only useful on this level, 20 minutes was not long or short, and it would be tragic if there was no power when the flashlight was needed for the next level.

Now Ann has got four numbers, which are 13, 17, 16, and 26.

The previous idea of inferring that two numbers are one coordinate is obviously not valid after seeing other calculations, there are only two axes of XY, and there are 4 coordinates, which is definitely wrong.

Quiet down and think about it, the order is also a big problem.

Even if you don't count the last two numbers, An Yizhi didn't find any of the order prompts for the first two numerical coordinates, and he didn't know who was the X axis and who was the Y axis.

There are 24 kinds of four numbers!

Keep in mind that there are only 50 floor tiles in the room, which is almost half!

Why don't you try to mark all the locations that might be arranged as coordinates? What difference might you see?

It's really an idea, but there are a few other things to consider.

For example, the time, to be more specific, is the power of the flashlight.

It took less than 10 minutes for An Yizhi to wander around the room, and if all the positions of the numbers crossed were marked, no matter how smart An Yizhi was, it was impossible to simulate it with just his brain, so he had to do it himself, and lighting was naturally a must.

But in this way, it will consume a lot of the little power of the flashlight, which is a gamble.

Although there is a marker as a hint to facilitate the player to write something, but it is not said that you will be able to see the clue by doing so, and there is no guarantee, combined with the routines of many puzzle games, the power of the flashlight is likely to be used in the next level, and even if he passes the first level, he will be blacked out in the second level, and he is helpless.

It doesn't matter if he doesn't have limited combat effectiveness, anyway, he has three lighting spells, the Dancing Light Technique, the Light Technique, and the Magic Light Technique, and the role of the flashlight is dispensable.

But it is clear that there are no ifs.

In addition, from the perspective of efficiency, it is not reliable to mark all the intersections.

An Yizhi pointed out that the speed of exploration was already fast, the purpose was very clear, and it didn't take much time to solve the problem, even then it took less than 10 minutes, and then to mark the floor tiles, the time for the flashlight was obviously not enough.

The four numbers kept spinning in his mind, as if they were going to mess up his brain, and just now he had to frown and think about it.