What about achievements for accomplishments in stairs?  This is one I don't see anything for...
Winning a 3 win match after being down 2-0...  or other combination's of match play...
Beat a player in the top 10 for 10 different games


getting two six in a rows at the end of a connect6 game... or the same thing for five in a line, swap five in a line, line4, linetris, etc.
Take a queen with a pawn in chess
Get a gammon or backgammon
get all the frogs in frog finder before your opponent has one of yours...  get 7 or more in frog legs...
Win by pinning the mother piece in plakoto
win pente by capturing 10 pieces, keryo by capturing 15 pieces, etc.
Get 50+ pieces at the end of a reversi game, 90+ for reversi 10x10, make your opponent have 50+ for anti, etc.
Get 6+ in a row for hasami shogi instead of the normal 5 in a row for a win...
Have all of your boats left unsunk at the end of a battle boats game...
Get 40 pieces in Ataxx or Assimilation
Hit a certain score in dice poker (maybe 300?) or triple dice poker (maybe (1,800?) or other dice poker games...
Get a run of 8 points or more in froglet or froglet versions
Take your opponents commander tank in it's home base in tank battle
Win by 40 in pahtum
Get the code in mastermind after a certain number of guesses


There are a number of these things that could be done that are specific to a game or a group of games.  I feel it is very important that IF these things are pursued that it is done in a fashion where you have to do it against 10 unique opponents in games where BKR is affected before you get the achievement.  These are things to consider obviously, and can be what you make of it.  I don't care one way or another if all, none, or only a few are implemented, but since many people like the idea of achievements, I thought I'd share some ideas of mine (I think I stole a couple from previous posts...  sorry Coan)

Thanks,
Phil (rednaz23)