Hello everyone, I'm Bai Xi. Before that, we learned some small things about killing.
Figure 1
As shown in Figure 1, we know that this kind of killing with the same qi, the person who collects the gas first can eat the other party. However, if the black and white chess pieces of the kill have a common qi, it is necessary to pay attention to the order of receiving qi. This is something new to learn today.
1. Both sides have no eyes, the external gas is the same, and there is 1 mouth of public gas
Figure 2
As shown in Figure 2, now the black chess and the white chess inside kill, the black chess and the white chess have 3 breaths, and the black chess wants to eat the white chess, so it must be done first.
Figure 3
As shown in Figure 3, whether the black chess is played in B or C, you can eat the white chess first.
Figure 4
As shown in Figure 4, if the black chess piece avoids the correct answer by virtue of its strength and chooses to collect the white chess qi at point A first, it will look like this: it will be eaten.
Because the black chess is played at point A, this public place, let your qi also be reduced, give white 2 the opportunity to eat yourself, black 3 and then play white chess, it is too late. The car to the kindergarten has driven away, and it is impossible to catch up.
In this case, we must collect external gas and then collect public gas.
2. Both sides have no eyes, the external gas is the same, and there are 2 mouths of public gas
Figure 5
As shown in Figure 5, now that the publicity of black and white chess has become more, let's see how black chess will go.
Figure 6
As shown in Figure 6, black 1 collects the external qi, white 2 also collects the external qi of the black chess, black 3, white 4 continues, go like this, the black chess pieces do not still stupidly go to collect the public gas of A and B.
Because, inside there are 2 breaths, you go A, the white chess piece eats you at point B, you go B, and the white chess piece eats you at point A.
What is it? Double live ah hey. Here the white chess does not dare to go down, anyway, who plays who is eaten, no one is so stupid to die.
Figure 7
As shown in Figure 7, only when the public gas exceeds 2, both sides can continue to collect inside, until the last 2 breaths remain, and everyone lives together.
summary
This also allows us to discover a lazy technique, that is, when both sides have no eyes, the external qi is the same, there is no public qi (like Figure 1), there is 1 mouth of public gas (figure 2), whoever moves first can eat chess.
But when the metric number ≥ 2, it is double-active. Moreover, we must first collect the external gas.
Let's take a look at today's exercises.
[Please ask]: How to eat white chess with black chess?
Exercise 1
View the answers
Exercise 2
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