He Lan's home is room 1807, there is an iron door and a wooden door, the anti-theft lock is quite stable, at least Zhao Siqi saw the key style He Lan took out, and felt that if he wanted to pick the lock, I am afraid it would be difficult for many thieves.

Moreover, there are many security guards in the community where He Lan's home is located, but all visitors must be registered, so it is effectively avoided by thieves.

Entering He Lan's house, Zhao Siqi saw that the decoration here was very modern, with a simple but not simple geometric world.

Later/through He Lan's introduction, Zhao Siqi learned that her home was designed by her and her father, who was a mathematician, and naturally incorporated mathematical elements when designing his own residence.

As far as the eye can see, triangular shapes, squares, rectangles and circles of different colors are all over the floor and walls. The daily necessities of cones, cubes, cuboids, and spheres are placed at will, giving people a seemingly cluttered, but very comfortable feeling.

"Zhao Siqi, welcome to my home's geometric world!" He Lan said proudly while taking out a pair of slippers for Zhao Siqi.

"It's really good! This decoration style must have cost a lot of money, right? Zhao Siqi complimented.

He Lan smiled silently, changed his slippers himself, and then took Zhao Siqi through a three-meter-long and arm-wide passage before arriving at the location of the living room.

Zhao Siqi saw that there was a half-played chess on the coffee table in the living room, and on both sides of the chess, there was a middle-aged man over half a hundred years old. One wears a black plaid shirt and trousers, and the other wears a loose T-shirt and short jeans.

Zhao Siqi immediately saw that the middle-aged man in a T-shirt and jeans had a six-point imagination with He Lan, presumably he was He Lan's father.

When Zhao Siqi and He Lan walked into the living room, the two middle-aged men who were playing chess didn't raise their heads, just looked at the chessboard silently, thinking non-stop.

He Lan smiled helplessly at Zhao Siqi, and whispered in his ear: "My dad is playing against Uncle Wei, once they go crazy, no matter what happens next to them, they can't stop." ”

Zhao Siqi nodded, he fully understood this state. Because in his previous life, once he completely immersed his mind in chess, he would not get rid of a game of chess without finishing it.

"Zhao Siqi, do you want to drink coffee or tea?" After taking Zhao Siqi to sit down on the sofa on the edge of the chessboard, He Lan began to do his best to be a landlord.

"Let's have tea!" Zhao Siqi quickly made his choice.

"Okay, wait a minute, I'll make you tea right away." After speaking, He Lan acted quickly.

When Zhao Siqi sat down, he finally paused the two middle-aged men who were playing chess, and then looked at Zhao Siqi at the same time, and when he saw that Zhao Siqi was just a young man, he didn't care much, just nodded lightly to Zhao Siqi, and then pondered tactics.

Zhao Siqi was not surprised, seeing that the two of them didn't have time to take care of themselves, he just nodded, and then began to observe the battle situation on the chessboard from the side.

With He's father in charge of red and Wei in his middle-aged position in charge of black, the red side has risen to three floors, and the situation is precarious, and Black only needs to take three more steps to kill.

The red rook is about to cross the river, but the red rook has to defend Black's pawn and cannot attack.

Based on the superficial sub-force comparison, it feels like Red is defeated.

"Lao He, you admit defeat, this game is a thousand yuan, don't be reckless!" Uncle Wei in He Lan's mouth said with a smile.

"Lao Wei, the chess game hasn't been finished yet, why are you and I in a hurry? I'm not done yet! Although Father He said this, his outstretched hand did not dare to touch his son.

Zhao Siqi saw Red's move, and had already calculated the best move in his heart, so he quietly waited for Father He's move.

In his previous life, as a chess master, Zhao Siqi knew the rule of watching chess without saying anything.

He is different from those chess baskets on the street, when watching others play chess, no matter what kind of thoughts he has in his heart, Zhao Siqi will not show it, but silently calculates the method in his heart, and then looks at the move of the target to play the chess pieces to see if it is consistent, if it is inconsistent, which side is better.

When He Lan brought four cups of cold brew tea from the kitchen and walked back to the living room, she couldn't help but be a little surprised to see Zhao Siqi staring intently at the chessboard, she had also been to some parks, and saw two people playing chess, but there were seven or eight chess watchers next to them, and the chess watchers liked to be teachers, constantly commenting on every move of the chess players, and sometimes even wanted to stretch out their hands to play chess for the people being instructed.

And Zhao Siqi in front of him is completely different, he only looks at it and doesn't say it, but looking at him, he seems to be confident, but he just refuses to say it.

Placing the tray holding four cups of cold brew tea on the side of the coffee table, He Lan first served it to Uncle Wei, and then to Zhao Siqi, but Zhao Siqi brought this cup of cold brew tea to Father He.

Seeing this, Father He withdrew his gaze from the chessboard, and glanced at Zhao Siqi approvingly, "Classmate Zhao Siqi, welcome to our house as a guest, listen to He Lan said, your chess skills are good, why don't you come and see how I can continue in this game of chess?" ”

At this time, He Lan had already handed the fourth cup of cold brew tea to Zhao Siqi, and his eyes flashed with expectation.

Zhao Siqi hadn't opened his mouth yet, but Uncle Wei looked disdainful: "Lao He, what are you kidding, brother, I have an undefeated record in the fight with the chess king, and you let a high school student make a move, aren't you afraid of losing faster?" ”

"Uncle Wei, don't underestimate Zhao Siqi, Zhao Siqi's chess skills are quite good, in our Nandu Middle School, now he is one of the best!" He Lan immediately opened his mouth to support Zhao Siqi.

"Xiao Lan, you classmate, I don't think it's material for playing chess, look at him, both hands are stained with oil, and he looks like he works a lot, how can he have time to study chess?"

"A real chess master, that is, you have to keep playing music and constantly compete with your opponents, so that you can improve."

"Your Uncle Wei and I have traveled all over the country in order to improve the level of chess, and have played against famous chess players from all over the country.

"Old Wei, how do you speak? As the saying goes, people can't look good, how is Zhao Siqi's chess skills, you can't see it, you have to play it out, right? Father He took a sip of cold brew tea and said with some dissatisfaction.

He Lan looked at Uncle Wei angrily, as if Uncle Wei looked down on Zhao Siqi as if he looked down on himself.

Then when she looked at Zhao Siqi again, she found that Zhao Siqi still had a faint smile on his face.

"Zhao Siqi, if you really have the ability, you can help Lao He solve this game, as far as it is concerned, the probability of the red side wanting to win is zero, and the game I laid out can only be solved by the chess king!" Uncle Wei's voice was full of conceit.