Updating the book!

I'm updating the book, since previous update was three months ago, and there were some meaningful changes, which include:

• changed reposition symbol to backslash,
• removed unsupported castling notation examples,
• added delayed column to variants table, description,
• removed monogamous promotion,
• changed draw offer cancelled symbol,
• clarified resurrecting converted pieces,
• clarified only captured and oblationed pieces can be resurrected,
• clarified resurrecting Waves, Starchilds,
• fixed grammar: Starchild can be activated,
• and many more fixed edits, typos.

Some of changes were made to ease parsing user notation; for instance, repositioning symbol used to be just comma, which is also used for list of captured pieces during (double) trance-journey. Another example, cancelled draw offer was previously written as (-), now minus sign has been removed from brackets, since it's also used to separate destination from any previous step.

For castling notation, previously one could specify for Rook starting, any or all intermediate fields; now it accepts only destinations, either full position or just a file, optionally preceded by Rook symbol. So, Kh1-d1&Re1 is acceptable notation, but Kh1-d1&Ra1-e1 is not anymore; because King is not transparent to Rook, it's just a very special move. Another reason is that it also simplifies parsing user notation, without losing any valuable information.

I also removed monogamous promotion; after some thinking it was obvious to me that promotion does not add anything to the game, but only complicates things for players, and for no good reason. I thought I had one when I was setting promotion rules, but certain choices doesn't make a good story. I prefer freedom of choice over (unnecessary) rules. There is also a moment when one has to consider simplifying design, when possible. 

The book was compiled on Jan 13, 2024, version is 20250113.203449, and can be found in usual places.