In the palace hall, Cheng Fugui, the son of heaven, admired the hazy night and said: "The beautiful night, how charming. Presumably, tomorrow will be another sunny day. At that time, I will personally accompany the Queen Mother and the Imperial Sister to visit the Imperial Garden, so that they can enjoy the beauty of the world that I have prepared for them. ”

"Your Majesty!" I saw Ye harmless behind Cheng Fugui and said: "This move is the most beneficial to the recovery of the queen mother's body and mind." ”

"Hmm!" The Son of Heaven turned around, smiled and said, "It's still early, you come and play a few games of chess with me." ”

As he spoke, Cheng Fugui led Ye Wuwu to a side room and walked all the way to the chess table. However, to Yah's surprise, he found that there were many kinds of chess pieces on the long chess table. In his memory, he recognized that there were Chinese chess, Chinese Go, chess, beast chess, "land war chess", "backgammon", "backgammon", "backgammon", and some unnamed chess pieces. He knew in his heart that the ancient Chinese chess had a total of 8864 squares, with 32 red and black pieces and half each; Similarly, chess is also 8864 squares, with 32 black and white discs; In Chinese Go, 18×18=324 squares, 181 blacks and 180 whites, for a total of 361 pieces. Among these chess games, the number of squares and the number of pieces are ranked at the bottom is the "four-in-a-row", which is the simplest form of chess, with a total of 3×3=9 squares, and the opponents have 4 discs each, for a total of 8 discs. Its format is similar to that of the "Nine Palaces Diagram Bagua Diagram", in which the upper four main palaces, the four dimensional palaces and the middle palace form nine palaces, from which the chessboard format of the "Four Chess" has evolved.

At this moment, Ye Wuwu looked at the dazzling chessboard and chess pieces in this hall, as if he had walked into a colorful chess art collection room, which made him feel surprised and excited, so that he could not open his eyes!

"Your Majesty! There are so many types of chess, I don't know which game of chess the emperor wants to play with his ministers? ”

"Hahaha!" The Son of Heaven laughed and said, "Here, it's all a game of chess that has not been played, which game do you say we should play?" ”

"Weichen knows that the emperor is good at playing Go. Reason is here! ”

"Hahaha! Mo Ruoqing, who knows me! That's what I mean! Before you and I start, I ask you, do you know what kind of move this is? ”

Hearing this, he followed the gesture of the Son of Heaven and saw that he was pointing to the game of chess, which had been played in the endgame. So, he replied, "It's chess." Wechen is not good at playing this chess. ”

"Nope! I'm not trying to play chess with you. I'm going to ask you, the inventor of chess? ”

"Wechen doesn't know. Please make it clear to the emperor! ”

"Ye Aiqing! Have a seat! Listen to me tell him his story! ”

Between the words, Cheng Fugui had already motioned for Ye Wuwu to sit next to the Go table.

So, the Son of Heaven held the white piece of Go in his hand and said: "This chess game has a total of 8864 squares, and its inventor is Dayil, the prime minister of the ancient Tianzhu Kingdom. According to legend, the king of Tianzhu, Shehan, wanted to reward his clever and capable prime minister, Dayil, and asked him what he wanted. Dayil replied: 'If the king puts one grain of wheat on the first square of the chessboard, two on the second square, and four on the third square, and then doubles each square in this proportion, until it reaches the sixty-fourth square, I will be grateful, and I will not want anything else.' The king thought to himself: 'How much can this be?' It's easy! So a sack of wheat was brought, but in a few moments it was all gone; I brought another bag, and it quickly ran out again. As a result, it was not enough to run out of food in the whole Tianzhu country. The king wondered how he could not settle the account. This matter is still a mystery for the ages! ”

At this time, Ye Wuwu held the Go black, and after listening to the Son of Heaven's eloquent narration, he secretly put the chess pieces in the corner, made the "two eyes", and then said: "Presumably, this is Prime Minister Dayil hinting that the king will open up wasteland and increase grain production, so that the country will be rich and the people will be strong, and the people will work in peace and contentment." There is an old Chinese saying: 'Cang Liao knows etiquette in a real way!' That's probably what it means. ”

"Hmmm! Ye Aiqing is right! The Son of Heaven mentioned the "5 sunspots" and muttered: "It's a pity that this is a difficult account!" I have been very troubled by this, and I want the land of heaven to produce grains that fill the sixty-four squares of chess! ”

"Don't worry, Your Majesty!" Ye harmless made another hand of "tiger mouth tooth extraction", stopped and said: "The courtiers and subjects should solve problems for the emperor!" I hope that one day, this will be realized in our Central Plains! ”

"Definitely! Look at the moves! Eat! ”

As a result, Cheng Fugui, the son of heaven, began to enter the fierce climax stage with Wu Zhuangyuanye.

However, the wish of the two of them, to fantasize that the sixty-four squares would be filled with grains according to Dayil's method, was a very difficult and real extravagance; It is only because they have no way of conceiving the astonishing results that they have come up with the above nonsense. How did they know that today, thousands of years later, in the twentieth century electronic age, the mysteries of the ages can finally be easily solved by computers!

There is a saying that "a good man is in his mouth, and a good horse is in his legs." ”； There is also a saying that "the mouth of the storyteller and the legs of the singing." "Let's talk and sing here, we will inevitably have "Raise your legs for thousands of miles and open your mouth for ten thousand years." "Rapid change! Let's talk from the era of "Jianghu Heroes" in troubled times to today's era of computer revolution, which is exactly what the speaker wants to uncover the "mystery of Dayil" that has been passed down through the ages through this far-reaching time tunnel——

In order to calculate the huge account of Dayil, that is, the number of grains of wheat grain, it is necessary to make a formula, that is, T=1+2+2×2+...... 2 to the 63rd power. As a result, this huge account is the "mystery of Dayil." ”

Now let's use a computer program to do a specific calculation: let T be the number of particles and V be the volume "cube"; After calculation, 1 cubic wheat has about 1.42×10 grains to the 8th power. The computer program and block diagram are as follows:

10LET T＝0 ↓

20LET N＝0

30LET P＝2↑N

40LET T＝T ＋P

50 LET N＝N＋1 →→→→→→→↓30

60 LET IF N〈63 THEN 30 ↑

70 LET V＝T/（1.42E＋8） ↑

80PRINT “T” ＝； T ， ↑

90PRINT “V” ＝； V ↑ ↓

100END ↑

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←←←←←←

↓70，80，90

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RUN

T=1.84467×10 to the 19th power V=1.29906E+11

The result of this calculation is that there are 1.84467×10 wheat to the 19th power, and the volume is about 1.3×10 to the 11th power "cube". It is equivalent to 9.6 million square kilometers of land in China, and is covered with wheat grains about 1.3cm thick. It is equivalent to China's wheat production for hundreds of years.

This is exactly the "mystery of Dayil" that King Shehan of Tianzhu could not solve.

However, at this moment, Cheng Fugui and Wu Zhuangyuan, the Son of Heaven who have been in full swing, are harmless, where do they know this eternal secret? The two monarchs and ministers, hot-headed for a while, imagined that the "Dayil riddle" could be realized on the chess board. To put it mildly, they are simply unashamed and arrogant; To put it more ugly, these two chaotic ministers are simply unbelievable! They don't touch their bellies and think, is this something they can achieve? Not to mention them, even those who write books, tell stories, and sing operas can only sigh and boast about hope, who dares to realize this "mystery of Dayil"? …… It's just anti-anti-heaven!