Hello fellow students, today we study the "Purpose of Attack". Many students think that the purpose of the attack is to eat each other, in fact, the attack is more to weaken the other party and obtain certain benefits. Of course, do not be soft when you have the opportunity to eat each other, but you must be completely sure.
Basic Figure 1 Black First
Basic Figure 1 Hei Xian Adapted from the actual battle of Jiang Jiacheng' classmates, how does black chess attack the best of the left white triangle?
Failure Figure 1
Failure Figure 1 Black 1 relies on seemingly imposing, but it is actually a help. White 2 below easy live chess, black chess does not have obvious gains.
Failure Figure 2
Failure figure 2 Black 1 town is similar, white 2 simple big fly and then 8 small tip, feel that the black chess triangle this seed is dangerous.
Positive solution
The black 1 small tip is a good move to attack and defend, while searching for roots while surrounding the corner of the territory. If White 2 escapes, Black Chess will continue to pursue, strengthening the outer two through attack.
The positive solution continues
White 16 seems to be able to eat a piece of black chess, but black 19 fly continues to use strong, white chess can be said to lose armor.
Basic Figure 2 Black First
Basic Figure 2 Black First White 1 How to attack effectively by relying on black chess?
Failure Figure 1 Many classmates habitually pulled the pressure as soon as they leaned on, in fact, in this situation, it is to help the other party play live chess, but also send the white chess to their own empty, it can be said that it is a help.
Failure Figure 2 Black 1 pull is the feeling of eating children, disconnecting the other party, but the white chess piece can eat two seeds on the corner, and the black chess piece first loses a corner and then surrounds the outside, and does not get any benefits at all.
The black 1 pinch attack is the correct direction of attack, the white 2 jump seeks the eye position, the black chess piece is simply blocked, while attacking the side of the left side, the harvest is huge!
Basic Figure 3 Black First
Basic Figure 3 Black First How to destroy the camp below the white chess by attacking?
Failure plot
Failure figure Black 1 two-way point search root error, white 2 small tip good chess, although the black chess can be connected back, but after the white 4 blockade, the appearance of the white chess is very large, the black chess can not be satisfied.
Positive solution black 1 good checkers! By threatening the three seeds above the white chess piece, the purpose of entering the base camp on the left side of the white chess piece is achieved.
Basic Figure 4 Black First
Basic Figure 4 Black First White chess relies on seeking eye position, how can black chess effectively attack?
Failure figure 1 Black 1 point is eager to break the eye, in fact, the conditions are not mature, after the white 2 is connected, the black 3 will be resisted by the white 4 first hand, and the black will not be able to break in the a position, because the white b position will rush out, and the four black chess pieces will become the defendant.
Change Figure 1
Change figure 1 Black 5 can not be connected, white 6 can eat black chess.
Variation Figure 2
Change Figure 2 Black 3 retired sheep to make up for the prison, but the white 4 company first said that the black chess did not gain any eyes, now it is impossible to kill this white chess piece, and there is a counterattack after the white 8 top to dig up the black chess.
Failure Figure 2 Black 2 Pull then White 3 Company can fight with black chess, and black chess is also not sure.
Positive solution figure Black 2 break the first hand to get the eye number, and then follow the trend of 6 long strong outside the four seeds is a substantial harvest of the next method. Let's take a closer look.
Basic Figure 5 Black First
Basic Figure 5 Black First Is there a possibility of killing white?
Black 1 relies on good chess, and white chess cannot make two eyes.
Original basic diagram
Original basic diagram This battle example is based on the attack techniques of the third chapter of Masao Kato's nine paragraphs "The Next Step to See Three Steps", the original question does not have the exchange of white a and black b, and black 1 can not kill the white chess piece.
Original book answers
The answer to the original book believes that black 1 and 3 can kill white chess, ignoring the magic hand of white chess to cure loneliness!
Variation Figure 1 White 4 digging is a magic hand! The black chess piece cannot eat this white piece.
Change Figure 2 Black 5 hit the top, white 6 broke after a stand, black chess left and right.
Change Figure 3
Change Figure 3 Black 9 blocks must not be blocked, white 12 after a, b see the same.
Variation Figure 4
Change Figure 4 Black 11 under the contact, then white 14 first hand broken after 16 fly is still a, b two points.
Variation Figure 5
Change Figure 5 Black 5 plays from below, and White 8 climbs black chess can not continue to hunt. White 12 broken chess, you can use the left side of the black chess piece is not alive to make a second eye.
Change Figure 6
Change Figure 6 If it is the title of the original book, then the black chess piece should be put on the white chess to do the work, and it is the best choice to go 3 places while attacking while preventing the white chess piece from entering.