Xu Shu suddenly realized that every time Xu's father played with the game, he would always make the moves in a fixed order.

Moreover, when teaching Xu Shu how to play the endgame, Xu Shu would be severely scolded by him every time he made a mistake in the order.

At that time, Xu Shu didn't understand that it was just an end game, just lay it out. Why was he so entangled in which move came first and which move came last?

Now that I think about it, the order in which the chess pieces are played is also one of the key pieces of information.

"But why was it that when Ma Bo laid out the endgame, the order of the positions of the chariots, horses, and artillery pieces was completely wrong? Although the endgame was also laid out, since his father taught him to show it to him, there is no reason why he would remember the order wrong."

Xu Shu couldn't figure out the reason and stared at the chessboard in trance, "What does the order of the moves mean? Wait, it's a book, "Spring Mountain Childhood"!"

Xu Shu jumped up and returned to the bookshelf in the utility room. After rummaging through the cabinets, he found a dusty copy of "Chunshan Tongmeng". He dusted it off and opened the pages. The paper turned yellow.

He remembered very clearly that every time the game was messed up, Xu's father would drink tea and flip through it casually with the book "Spring Mountain Children's Meng".

He opened Chunshan Tongmeng, and there were four words on the title page: Three or five wrong numbers.

With a flash, Xu Shu's mind exploded with light, and he understood everything.

It turns out that Go can be regarded as a coordinate axis, and each move corresponds to the corresponding coordinate value.

The three-five wrong number is a specific algorithm for converting coordinates.

Xu Shu quickly wrote the first move of the endgame into coordinate values, and then used three or five wrong numbers to convert it into coordinates, and got two numbers. The first number was 7, and the second number was 108.

Xu Shu opened Chunshan Tongmeng, turned to the seventh page, and found the 108th word, but it was the word "small".

His heart moved, and he continued to look for the coordinates corresponding to the second move: three, eighteen, the third page, the eighteenth word, but it was the word "Shu".

"Xiao Shu, it's true."

Xu Shu cheered up and continued to study.

Three hours later, Xu Shu finally recorded the text corresponding to all the chess pieces, which filled two pages.

He raised his head and looked out the window, where a waning moon was half-hidden in the thick clouds. A gentle breeze was blowing, and the bamboo branches were swaying.

He stood up and moved for a moment, turned on the desk lamp, and read carefully under the lamp.

This is a letter written by Xu's father to Xu Shu. In addition to the father's wishes and concerns for his son, there is only one core message.

That is, ten years ago, Xu's father went to the Dargan Mountains with a Guards detachment for field work, and encountered tomb robbers. The two sides fought fiercely, causing countless casualties.
Chapter completed!