I was a bit distracted by trying to convert Joker80 for playing Falcon Chess. Problem is that Joker is not so asy to convert for Fairy pieces, as the moves of piece don't only affect the ordinary generation of moves, but also affects pin test, the generating of moves of pinned pieces along the pin ray, (Nghtrides give, hippogonal pin rays), the 0x88 attack test needs new elements in the vector table. Convrting to Knightmate and the Capablanca pieces was much easier, as there were no new moves there (just pieces that combined them differently).
The Falcon is even worse, though: it is a multi-path piece, and renders all common wisdom about pins useless. So I decided to try it in micro-Max first (and there it works now).
It did adapt WinBoard_F to support some more pieces, and taught it the Nightrider moves, so we should be able to play it with legality testing switched on. I also provided some wildcard pieces, to make it possible to play with unknown pieces, and still do legality testing on moves of the pieces WinBoard does know. (I use this for the Falcon.) The new version is not on my website yet.
Falcon Chess is a bit weird: it i palyed on 10x8, featuring a patented piece that can reach each of its 16 destinations through 3 different (partly overlapping) paths, on which it can be blocked, without being ble to capture its blocker. (Like the Xiangqi Horse or Elephant.) This brings some new elements into the game.