When it comes to the "last-in-first" in Go, this is indeed a very interesting way to play. It is the same as the ideas of "seeing and agreeing" and "trying to make a move", because the method is more subtle, and its core idea contains a strong meaning of "preemptive strike-----

This is undoubtedly very in line with the aesthetic taste of our Orientals, Li Xiangping believes that it may be precisely for this reason, so in the Go created by the Orientals, the idea of "the last in the first" has always been highly respected by everyone, and this kind of means is naturally considered by the majority of chess players to be the "advanced means" in Go.

Not only that, but even in the Go AI created by Westerners later, the "last-middle-first" method of playing is also everywhere------

This is undoubtedly a very interesting thing, for example, the same very subtle "meeting", which is basically difficult to see in the dogs' Go, but with similar attributes of the "last in the first", dogs are widely used, and even from a certain point of view, the dogs' "last in the first" means, which is much more skilled than humans, and at the same time much more esoteric.

The most famous example of this, of course, is the first game of the Alpha Dog vs. Ke Shaoxia trilogy in the second season of "Man-Machine War".

In that game, the dog made an extremely subtle "last-in-first" move in the mid-game stage, which was not only highly respected by chess players, but also widely praised by the spectators at the time, and it is not an exaggeration to say that that move was the "winning move" of that game.

Ke Shaoxia said frankly after the game, when he just saw that move, not only did he immediately feel breathless, but he found that his chess was completely immobile, and at the same time, he knew in his heart that after this move, he had no chance, although the final result was that he only lost half a eye, but the subsequent process was actually just a routine for the dog to ensure victory, and he had no chance of winning after that move.

It is precisely because of this that the "last in the first" in Go is not only a very advanced method, but its advanced level may still be the highest, if a move can be worthy of the term "last in the first", then this must be a good move, and it is the kind of good hand that will make the opponent feel very uncomfortable and will find it very difficult to deal with.

And just today, just a little at 2 o'clock in the afternoon, Zhang Xu dropped the 54th global move, which seems to be worthy of the honor of "the last of the first".

As soon as this move came out, not only did Li Xiangping stop for the first time, making him feel difficult to breathe at that time, but also after this move appeared on the chessboard, the whole situation was instantly tilted towards the white side.

It is necessary to describe in detail the highest level of this move in Go:

From the 50th move overall, black and white are both in the middle of the belly, white begins to manage his big shape, and black throws a combination punch, ready to destroy the big picture of the opponent.

Therefore, according to common sense, or according to normal thinking, white should continue to fall in the middle of the belly, because only in this way does white seem to not leave the main battlefield.

It's a pity that this is just common sense, and it is the "common sense" that Li Xiangping has not departed from before, but today, his opponent seems to have surpassed common sense.

At this time, Zhang Xu did not continue to settle in the middle of the abdomen, which means that in the face of Li Xiangping's menacing combination boxing, he actually took the lead at this time, he ran to the upper left corner of the chessboard and leisurely took a step "Erlu Li".

It is necessary to explain the shape of the previous piece in the upper left corner: before this, black and white have completed a very ordinary pattern in this part, well, it is the kind of black chess "point three three" to get the ground, and white chess to form an external potential on the outside.

It was in such a chess shape, at such a critical juncture when the attack and defense of the mid-belly was large, Zhang Xu suddenly ran to that place to land, which was of course completely beyond Li Xiangping's expectations. Because if you don't calculate carefully, no matter how you look at this move, you will be suspected of breaking away from the main battlefield.

It's a pity that after careful calculation, Li Xiangping found that the problem was far from being as simple as he imagined.

Although Zhang Xu's chess hand is an obvious back hand, (in fact, the most basic feature of all the last in the first means, the most basic feature is that this means must be a back hand, but after this move, if the opponent follows the response, then this exchange is cheap for white chess at that time, if not followed by the response, then the white chess will produce a very strict first move, "the last in the first" is actually named because of this), but Li Xiangping calculated that the opponent's chess, his intention is still related to the whole appearance of attack and defense, in this case, Then this move, of course, is not out of the main battlefield.

"Do you want to follow Ying Yi......"

This idea was quickly ruled out by Li Xiangping, which is actually one of the advantages of the "last-in-first" method, you know that its follow-up measures are very harsh, but in the vast majority of the time, then you have to follow his intentions, even if the follow-up measures are strict, you must take off the first, and you can't follow him.

For example, now, if black follows the local response, then it can only "block" one in the second way, then this exchange, purely from the perspective of the official, the official of the black chess has actually lost money.

Although there are not many losses, and there may only be about 2 chess, then this level of loss, in this large-scale offensive and defensive pattern, the problem is not too serious.

Unfortunately, this is not the crux of the matter, the real crux is that if black follows honestly, then this exchange is called "inner and outer exchange" in Go.

Black is played inside, not only does the official lose money, but it has no effect on the thickness of the outside.

However, white is different, his external momentum, which is itself part of his big picture, and now that he has this "two-way stand", then his whole external momentum has become thicker-----

This is the reason why Li Xiangping vetoed it in the first place! Are you kidding? In this large-scale offensive and defensive pattern, the thickness of the chess is a very critical factor, and if you follow the words of the corresponding hand, you will not only lose the official, but also make the opponent's chess thicker, so if you want to play like this, what is the difference between this and directly admitting defeat?

Since there is no way to follow, Li Xiangping's only way is to consider the opponent's harsh follow-up measures, and see if he can withstand the opponent's harsh impact after taking off the first hand.

After more than ten minutes of thinking, Li Xiangping found that this was very difficult, although he was currently in the first hand, but no matter where he went, it was difficult to make up for the losses caused by the opponent's impact-----

This is actually the real flavor of "the last in the first", although I am the back hand, but after I played this move, it is difficult for you to find a chess on the board that matches the value of this hand, and this, in fact, is the essence of "the last in the first".

For example, like now, Zhang Xu's follow-up method of "two-way standing" is actually very simple, just an ordinary "two-way jump", but this "two-way jump" is not only of great official value, but also has the value of nearly 10 chess pieces in simple calculation-----

Not only is this worth the value of a move in itself, but more importantly, it immediately threatens the life and death of the entire Black Corner.

Of course, black will definitely not die, if he dies with one jump, then white's hand just now is not a "last-in-first", but an "absolute first" move.

It's a pity that although black has no problem doing work, he is forced to go to the left side of the board to survive.

In this way, while White forces the black corner to work, he will make a series of moves on the left side of the board.

That's not all, the most critical question now is that the "combination punch" that black launched before is actually from this direction, so when white has a series of first moves, this will inevitably affect the attack and defense in it......

There is no doubt that this is a very clever step, and it is a real "last in the first".

It can be said that it is precisely because of these reasons that the real "last of the first" in Go is indeed worthy of the honor of "the most advanced means in Go".

Li Xiangping fell into the long test again, although by this time, Li Xiangping was already very clear that as soon as the opponent's good move came out, his own chess was already very difficult to play, and the situation had tilted in the direction of the opponent.

The only fortunate thing now is that Li Xiangping has already calculated the opponent's follow-up means after all, so at this time, he doesn't want to find a smart counterattack, but at least he won't collapse immediately, and he can find some way to stop the loss.

At more than 2 o'clock in the afternoon, Li Xiangping fell into the long exam again, can he find a means of resistance? The game continues step by step.