I'm updating the book even though less than a month has passed since the previous update; the newest changes include:
- rewrote checking opponent's King by Serpent,
- tiny clarification, cascading en passant,
- filled-in, clarified piece activations table,
- removed activations on miracle-fields by Starchild, Wave,
- removed Wave divergence on miracle-fields,
- a bunch of tiny fixes, clarifications.
In a previous update I planned on making an exception to Wave's transparency, so that King behind it is not in check anymore. That has been revised, and so Wave transparency stays the same, and King behind it is still in check. Due to Shaman being able to capture multiple pieces in a single ply, I had to put forward rule that King is in check if it could be captured, if it was opponent's turn. Then everything else followed from there: if a Wave can be passed over by a piece due to its transparency, then attacker already have direct access to a King; and hence, King is already in check.
I also removed all activations on miracle-fields, except Starchild can still activate a Star. This is due to miracle- and uplifting-fields being the same, so it was hard to determine on-the-spot (when parsing user notation, building legal path, ...) if interaction is just an ordinary activation (on miracle-field), or it's uplifting a piece; because uplifting is a two-stage process, and so activation context has to be passed between plies, before anything conclusive can be known.
The book was compiled on April 2, 2025, version is 20250402.230028, and can be found in usual places.