As you can see there is only a meager description of Grolman's main idea.
To get a playable version of the game, I had to slightly expand the rules regarding check and checkmate.
It would not be entirely correct on my part to take credit for co-authorship, because the rules that I described here and on chessdotcom follow from pure logic.
Regarding castling. It is not prohibited, but simply impossible. During the game there cannot be a situation where there are no pieces for castling between the king and the rook. The chess pieces are in a constant state of movement. Either the king or the rook will definitely make a move by the time the opportunity for castling arises.
You ask, "How does it actually play as a game?"
The game is absolutely playable and is not chaotic at all. The fewer chess pieces left on the board, the more the game leans toward classic chess, while retaining a little of the magic from the chain reaction of chess pieces moving.
I don’t know whether it’s worth including Groman chess problems in the description of the rules. Perhaps just a link to The Problemist or to my blog on chessdotcom is enough.
Here is a link to Grolman Chess on Wikipedia (in Russian) https://ru.wikipedia.org/wiki/Сказочные_шахматы_Грольмана
As you can see there is only a meager description of Grolman's main idea.
To get a playable version of the game, I had to slightly expand the rules regarding check and checkmate. It would not be entirely correct on my part to take credit for co-authorship, because the rules that I described here and on chessdotcom follow from pure logic.
Regarding castling. It is not prohibited, but simply impossible. During the game there cannot be a situation where there are no pieces for castling between the king and the rook. The chess pieces are in a constant state of movement. Either the king or the rook will definitely make a move by the time the opportunity for castling arises.
You ask, "How does it actually play as a game?" The game is absolutely playable and is not chaotic at all. The fewer chess pieces left on the board, the more the game leans toward classic chess, while retaining a little of the magic from the chain reaction of chess pieces moving.
I don’t know whether it’s worth including Groman chess problems in the description of the rules. Perhaps just a link to The Problemist or to my blog on chessdotcom is enough.