Single Comment

Right, I deliberately chose three different sizes, always putting rank
first, but '9x8' is not confusing to mean 8x9. In fact, the majority
might tend to name file first, leaving the context to clarify. No one
wants 9 ranks and 8 files in NextChess, although of course some artists
already made one. Leapers, not really having bewildering quantity of
cases,  show only five practical jumpers of note: N,Alfil,Camel, Zebra,
Dab. Likewise, practical Next Chess sizes comprise about what Joyce
recently listed: 8x9, 9x9, 8x10, 9x10, 10x10.  Carlos Cetina's ''Bishop
Conversion Rule'' from 1983, Bodlaender and Cetina in their article
suggest for Modern with (BN) and 110-year-old Chancellor Chess having
(RN), besides for Cetina's own game.  When two Bishops are on board, a
glance shows whether BCR has been used yet or not, so it is no more
artificial than Castling. In another article, ''Chancellor Chess,''
Bodlaender links how Malcolm Horne varied it reasonably to 8x9 back in
1970's.  Mastodon's piece is not new any more than Centaur(BN), as
Winther found first use of it called Pasha in Paulovits's Game around 1890,
the same decade as Foster's original Chancellor 9x9.