Behind the courageous backs of trustworthy ratniks, the kniaź can feel more or less at ease. However, by making moves and passing forward other pieces, the defenders move out of place, and sooner or later the ruler remains in the center of the row alone. It feels very uncertain: harmatas are loaded in the rival army, vieršniks spur horses, and at every next moment the kniaź can be checked.
There is only one way to hide quickly - by getting behind the walls of the vieža. Firstly, the kniaź approaches one of them, jumping over two or three squares. After that, the pieces change their places and the kniaź finds a temporary but fairly reliable shelter: it closes inside the dungeon.
The combination is considered one move and corresponds to the classical chess castling. In this case, the castling is the same in all directions and can be long - by three squares or short - by two.
Each party can implement it only once per game.
There are a few limitations: this move must be the first for the kniaź and for the vieža; there should be no other pieces and attacked squares between the kniaź and the vieža. In addition, you can't hide in the vieža, if the kniaź has already been announced the check.