What is a Checkmate Word™?

Question

_{This is in the spirit of the What is a Word/Phrase™ series started by JLee with a special brand of Phrase™ and Word™ puzzles.}

---

If a word conforms to a special rule, I call it a Checkmate Word™.

Use the following examples below to find the rule.

And, if you want to analyze, here is a CSV version:

Checkmate Word™, Not Checkmate Word™
ABBEY,MONASTERY
RANK,FILE
BROOK,STREAM
QUARRY,MINE
IN,OUT
ERROR,MISTAKE
REQUIRE,REQUEST
KINE,COWS
BARRIER,OBSTACLE
BANK,MONEY
BONE,SKULL
REAR,FRONT
ROOK,PAWN
QUEEN,BISHOP

Note: This is my first puzzle of this kind, so it may not be well-worked.

Answer 1

A word is a Checkmate word if

The majority of the consonants in the word are from the set $B,R,K,N,Q$ - the letters representing the major chess pieces.

Or even more specifically

If we count $Y$ as a vowel (semi-vowel) then all of the consonants in the word are from this set.