What is the "national attack" strategy in chess?

Chess has been invented for more than 400 years and is deeply loved by millions of chess fans. The footwork of this kind of chess is very complicated. Since 1989, the computer has cracked 500 million possible moves of chess day and night. In 1992, a calculation program barely beat Marion Tinsley, the world chess champion. Tinsley was once regarded as the best chess player in the world. Finally, in 2007, a computer program named "Chinook" developed by researchers at Albert University in the United States can perform well in chess. In 2007, the "Chinook" program reached its peak on 200 desktop computers, and it can calculate every step of the opponent. If the opponent is a perfect player and there are no mistakes in the game, the program will be tied.

Interesting fact: chess is deeply loved by people. In 2007, the "Chinook" program developed by researchers is one of the most complicated games in the world.

From the 2nd to 4th century AD, there was a board game called Chaturaji in the Indian subcontinent, which contained four kinds of chess pieces: chariots, horses, elephants and soldiers, symbolizing the military system of ancient India. In the Indian narrative epic Mahabharata, which was circulated at that time, there was a poem "The soldiers of the four armies have been lined up". "Four armies" means that the army is divided into four arms: car, elephant, horse and soldier. At that time, this kind of "square chess" was played by throwing dice. The purpose of the game is not to kill the king of the opponent, but to eat all the pieces of the opponent.

Since 1970s, the situation has changed. Dr Joseph Needham, a British scholar, pointed out in China's History of Science and Culture that chess is the creation of China people. He analyzed in detail the relationship between China's ancient game-Liubo and astronomy, iconology and mathematics. He said: "Only in China, the prevalence of Yin-Yang theory promoted the emergence of the embryonic form of chess, invented astronomical divination, and then developed into a game with military significance." 1972 Yugoslav historian bijiv's monograph "chess-a symbol of the universe" draws the conclusion that chess first appeared in China in 569 AD, and then gradually spread.

Chess was invented by Arabs. Because the chess that people are familiar with today was developed in Persia, and the word "chariot" in chess comes from Persian.

On the whole, there are two points about the origin of chess: 1. Chess originated in Asia and was later introduced to Europe. The original rule is to roll the dice to decide who will play chess. In addition, experts and scholars seem to have reached a * * * understanding on the origin logic: First, chess is an artifact. It's essentially a model. Second, chess is the materialization of human thought and consciousness. It is essentially a simulation. Third, modern chess is the result of the continuous evolution of ancient chess. Fourth, the influence of evolution comes from all aspects (including the influence of all kinds of chess). Fifth, the way of evolution is gradual mutation. Sixth, evolution and continuity exist. Seventh, the study of the origin should start with the three elements of chess structure-chessboard, chess pieces and chess rules. Eighth, chessboard, chess pieces and chess rules play different roles in the origin, evolution and stereotypes of chess. Ninth, chessboards, chess pieces and chess rules must not appear at the same time. Tenth, there is no "original inventor".