Single Comment

Continuing in R:

These are not used:

• rotating piece
• X-Y leaper

These are common words that don't seem to be used much in the sense given:

• screen is often used in other senses, such as a divider for lettings players set up their pieces without the other player seeing. In the sense given in the glossary, it is used on some pages, such as Gross Chess. I'm not sure that the term is heavily used. The term is used by Pritchard in his Xiangqi article.
• see is mainly used in the usual sense. I did not see it used in the glossary sense of a piece seeing.
• species is typically used in other senses, and it could be replaced with "type of piece" or "pieces of the same type" depending on how it's used.
• standard square is normally used in the longer expression "standard square board," not in the glossary sense. The definition of standard move would be less confusing without using this term.
• standard piece seems to be used in the sense of a commonly used or usual piece, not in the glossary sense of a piece capable of only standard moves.
• starting piece is not used very much and is fairly self-explanatory.
• straight-rearward is used only in Maorider Chess, and it is fairly self-explanatory.
• target square is sometimes used in the sense of a space that must be reached to win the game. When it's used in the glossary sense, the context may make its meaning clear enough.
• The only use of "two move rule" in a game is in reference to a different rule.

These seem self-explanatory enough to not need a glossary entry:

• straight-forward

Now I'm done. I didn't list piece names, game names, and other things we have links to, but these could also be removed.