・Fortified Castle: Structure of a castle designed to withstand invasions and assaults from the enemy
① Shin no Kaku Umadashi (真ノ角馬出)
A barrier or blockade designed in a perpendicular fashion in front of the main gate. Its usage is identical to the shinmaru umadashi.
② #3 (三)
The third compound, which houses troops and weapons for warfare. There are 2 present, covering almost 2/3 of the main compound combined.
③ Honmaru (本丸)
The main compound. Its shape is designed to be like 2 rooms. Interestingly, it also has an entrance to one of the third compounds.
④ 二 (ni, #2)
The second compound. There is only one present. It has entrances into the main compound, and both of third compounds.
⑤ #3 (三)
The third compound, which houses troops and weapons for warfare. There are 2 present, covering almost 2/3 of the main compound combined. This one has an entrance into the back section of the main compound.
⑥ Kuruwa Umadashi (郭馬出)
A barrier that is part of, or within the perimeters of the castle.
⑦ Ha-no-ji Koguchi (巴之字小口)
An entrance that acts like a trap for invaders. It leads to a narrow path that winds around, giving it several points that act like blind spots. Defenders can fight safely from these blind spots.
1) This castle, labeled “In no shiro” (陰之城) is the complete opposite of “Yo no shiro” (陽之城, page 7). In concept, they are a pair indicated by the use of “陰陽” (in-yo, ying yang).
*NOTE* The following diagram is a duplicate of the original used for the translation project, reproduced by hand. The design and information are the same, but the numbering order has changed to fit with its current presentation.