All pieces, moves, and in_check?
Board duping, move-into-check, checkmate
Board setup
Finished board functionality, starting on Chess GUI
Separated piece classes into different files
Have GUI, board refresh, white pieces move
Change turns, highlight chosen piece, display current turn
Checkmate and check display
Changed pawn's start move, king's in check moves, created labels InvalidMoveErrors, Implemented Save/Load features
Created gui class
Fixed checkmate display
Add 'chess/' from commit '576d646d77c521d8e437dbc0c76488038f0d15df'

git-subtree-dir: chess
git-subtree-mainline: 05fb71d623986fe0d7d26216dd995910a9d2610c
git-subtree-split: 576d646d77c521d8e437dbc0c76488038f0d15df
Switched requires to require_relative