서길수 교수의 고구리, 고리 산성 강좌 14강 | 고구리, 고리 옹성과 어긋성, 그리고 목합형 옹성의 비밀을 밝힌다.

And the way to build a chimney was to build it on the ground. But you have to dig this. As you saw in the mountain, there was a way to put a lot of stones under here. I didn't just do it, but I found out that I put a stone on it so that it wouldn't back down to the side. But anyway, the shape that appears outside is a door chimney, and then a staircase chimney. I've seen a lot of them. Most of them are staircase chimneys. And then there's a special way that only appears in this stone statue. It's a box-shaped chimney. There are a lot of things I've said, so I hope you understand. Anyway, you can divide it into three things. Now, let's talk about why we set up this chimney. First, effective attack. As I explained earlier, it can be overcome on all three sides. Effective warning. It's true that we're going around the castle, but it's also a patrol. The patrol is going around, but if you go to the castle, you can't see it right under the castle wall. You can't see it following you right behind you while you're driving. It's called a blind spot. Then, in the castle, you can't see this blind spot from below. But if you do this, you can see the enemy down here. When you just walk, you can see the blind spot. But when there's a rat, you can see it like this. And from this rat, you can see it all. You can get rid of the blind spot. And then the support that protects the wall. As you know, A is more stable and strong than E. It's common sense. So if you actually look at this side, there are a lot of places with rats. If you look at it after 1,500 years, And then when you're fighting, you maximize the active space of your allies. In fact, it's very comfortable when we actually go around like this. It's hard for me to go up the mountain, but if I get on the castle wall, I think I'm just going to the highway. It's made so comfortable. If you go up there, but if you look at it on both sides, It's a mountain, and it's about four meters high. When thousands of soldiers come and go, it's narrow. But when we're coming and going, When we're going fast in the middle, there's a place where we're waiting. If you look at the road outside the car, I made it big so I could meet the car. I went in there, I went through it, and I did the same thing. In that sense, the ground was installed to maximize the active space of the allies when fighting. You can see it like this. If you look at the features, the narrow corners of the field are close to the teeth. The place where the field is wide is far away. You can reach it with an arrow. There's a lot of narrow places like this. And then there's the angle and the length of the corner. It's particularly strong and big. It's easy to break down. I built it very strong. Where the slope is severe, I built a mine. Where the slope is gentle, I built a staircase. I made the width wider than the staircase. It's a little small because it's strong. I compared it to the stone. I was able to deal with it like that. You have to look at both sides of the angle, so it's usually longer than the teeth. The one in front of the gate was the angle, right? It's the angle in front of the gate, and it's got to be long. That way, when you come in through the door, it's a little closer to the teeth on both sides. And then I built the teeth on the gate and used it to make a lot of the same effect as Ongseong. So now let's see what Ongseong is. I'm sure you've heard a lot of what we've been talking about. What does that mean? This is Suwonseong. If you look at Suwonseong, the wall of the castle continues like this. There's another round one like this. This is called Ongseong. When the enemy comes in, if you come in here, you can shoot here. You can attack everything. So this is called Ongseong. When the enemy came in, it was used as an effective way to block it. This Ongseong is very different. It's flat, so I just made it round like this. Sanseong is not a place where you can do whatever you want. But that's why I made Ongseong by using Sanseong well. I've classified it. I've classified it into three. Yotjagol. And then the double wall Ongseong. This is a typical Ongseong. And then Eogeunmungol. They make each other go wrong. So the enemy comes in like this. I've divided it into four. This is a big one, a small one, or a used one. This is a cute half circle Ongseong installed in the castle. Eogeunmul, Pyongyang, Pyongyang, and so on. Anyway, I've divided it up and made a table with what I've collected so far. I'll take a look at it one by one from now on. First of all, it's very big, but it's actually Ongseong. When the enemy comes in here, There was a big rock here earlier, right? If you attack there, it's a big Nattongsanseong Ongseong. Gilrimyongdamsanseong, this is all the door. I attacked like this. There are a lot of trees right now, so it's very big. I went in here and there was a door here. So this is all the way in here. This is where the sign is. This is the whole Ongseonggol. This is Choijinbosanseong. If you just look at it, this is the door. I thought it looked like this. I don't make a door here. I don't make a door here, I go inside and make a door here. So what is it? There's a big jar over here. If the enemy comes to this door, Attack from both sides, attack from the front, It is a very large Ongseong that can be attacked on all three sides. It's a big castle, this Choijinbosanseong. And if you look at Deungnisa Sanseong, it looks like this. I don't make a door here, I make a door here. I made a tool here because I had to make a door. I used a way to make the rats come in with a tool. And if you look at Nangnangsanseong, I've already seen it here. There's an enemy here. The whole thing is made of doors. Can you see this one now? It goes around like this. If you come into this valley, The person who came into this valley The enemy becomes a rat or a rat. And then Soyeong. It's not as big as it was before. It's just a few meters. Seomun of Choijinbosanseong is like that. We usually go up the barrel. There's a road now. It's a world cultural heritage. And then at the end of the door, There's a door at the top of this part. I made this door round like this. I blocked it like this. It's a rock here, so I built a little bit. If you shoot here and shoot here, If you come in here, It's a rat or a rat. So it's a little Ongseong. And then Hwando Sanseong is pretty big. I divided it into medium-sized ones. This is the new Sanseong here. This is how it came down from here. In the 1994 excavation report, It's only up to here. It's like this now. It's a rat in here. And then there's the enemy. If there's a gate in the castle wall, I made two rats like this on the castle wall. You can shoot here in the castle. You can shoot here. You can shoot here, so you can come in here. It's a so-called rat in a castle. This is the central gate of Guknae Castle. So it's like this on the wheel. When the enemy comes in, I made it possible to attack from all sides. And then the castle gate is very clear. There's an apartment inside this picture. There's an apartment over here. I went to the top floor of the apartment. I took a picture from above. If you look at it, this is Chiseong. In other words, the gate of the castle. It's not a gate, it's Chiseong. When a person has to pass through here, To be able to attack from the side. I'm using it as a way to increase the combat power. It was good. And then it's a double wall. If there's a wall like this, I'm going to make another wall. Like this. It's called a memory ball. This is Guknae Castle. I'm going to build another one in there. I made it very narrow. It's called Ongseong. It's called memory ball Ongseong. This is the southeast corner of Guknae Castle. It's a memory ball. It's the same memory ball. I'm going to add another one here. I'm going to make two here. So it's very difficult. That's how I made it. When the Japanese investigated, It was in 2013. I went there in 2015. It's just like this. I just built this door. It's not fixed properly. If you go to the local area, You can see it like this. In fact, the people of Goguryeo I tried to increase the defense. Because it's a front door. If you go up from the front door, It's right here. This is also very interesting. It's round. It's not a memory ball. If you look at it like this, It's round and it goes in. It's connected like this. I made a memory ball outside. Ongseong. I'll look at it again. It's a little easier to do this. This is a huge wall. It's hard for the enemy to come in and come up. This is where the walls are piled up high. But you have to go through the door. It's almost impossible to go up the wall. Then you have to hit the door. This door must turn around like this. You have to come in. Then, here. Just with a bow or spear. I can beat the enemy here. Because the enemy becomes the master of the door. It's called Ongseong. This is the south wall of Hwando Sanseong. It's a west door. It's round like this. So that you can come in like this. That's what I did. 2-3 is quite unusual. It's inside the castle. It's not out. It's inside the castle. I used the terrain 100%. If you look here now, It's coming in like this. It's making a hole here. This is this part. It goes down like this. It's piled up like this. It's blocking the valley here. I'm making Ongseong. If you go up here, The enemy could come up this way. I made Ongseong here again. But I can't shoot outside. The cliff. So I made Ongseong inside. I made it inside. It's rare. This is the only place. I saw it from above. I made it inside like this. So that you can come in like this. If the enemy comes in, Turn around like this. Next, If you look at Yongdamsanseong, There's a big Ongseong. But if you look down, There's a small door. So this door is like this. It was a back door. It goes like this. It's a back door. This door can be approached like this. It can go out like this. You can attack from behind. So that our allies can come in and out. I made the door unknowingly. It's called the front door. It's a back door. If you look at the picture, The wall goes straight like this. It doesn't go like this. The wall goes inside. It's a completely different wall. It's a back door. And then, This is the end of the wall. It went inside. It's a back door. The enemy has to turn around and come in. The attack is not successful. So the wall opens. The wall opens. The back door opens. The wall opens. The body is moving. It's moving here, too. It has to go wide, It has to come inside. So the enemy forces have to come in this way, so this place becomes Ongseong. I told you this last time when I was in Sanseong. It's a very unusual Ongseong shape. If you look at it now, the enemy forces come up like this. And because it's a corner, it's a very vulnerable area. It's a vulnerable area, but I built a wall here and built it over there. It's made to turn around and come in. The wall over there is the back. So the enemy forces come in like this, turn around like this, and come out like this. If you come out here, there's another wall here. This is a cliff, and you have to go through here. So when the enemy forces come in in a two-way or three-way, It's a very unique Ongseong to be able to attack it. This is a very unique Ongseong. In other words, the terrain there looks like this. You can say that the terrain was made by using it as much as possible. This is behind Seongsan Sanseong. This is also a very unique ingredient. It's a valley where the enemy forces can come in. I've already explained how to make it inside. I'm making it inside. If you look here, I didn't just make one like this. I made another one here and another one here. If the enemy attacks here, the enemy attacks here. The enemy attacks from the front, the enemy attacks from this side, and the enemy attacks from here. So it's a very unique Ongseong. What I call a complex type is the same document. Like this, I made one inside and made another Ongseong on this side. I tried to classify it in a complex way. If you look at the Geonanseongseo, I can't really express what I took here. Originally, we made it and drew it, and it became like this. I made a big mountain in the middle and put it on both sides. It's like a knee bone. So that the enemy can come in like this. So it's a type of Ongseong that attacks the enemy in between. So far, I've shown you how to make Goguryeo. It's a book, so if you look at the book, you'll know. If you want to see that book in detail, It's free of charge at the Gyeonggi Cultural Heritage Research Institute. If you contact us, we'll send it to you for free. There are 800 pictures in there. It's very persuasive and easy to understand. I put everything in there. Please apply for a book that you can easily see. I've already sent you an e-mail several times. If you send me an e-mail, I'll just send it to you. Now, when I saw this, the Goguryeo Sanseong Defense System It was the most powerful defense system in the history of East Asia. I could see that. And even though the world's military forces came in, It was a battle to protect the castle. Goguryeo in the battle to protect the castle You can see that you've crushed a powerful empire. That's it for the Goguryeo Sanseong Defense System.