Disallow adding multiple instances of the same piece
Enforce whose turn it is
Add todo list to readme
remove swp file
Disallow drop-capturing
Add item to task list
Add item to task list: add rules
Implement checking for victory for horizontal rows
Check for victory on vertical columns
Add tests
Check victory along diagonals
Remove checking for victory from task list
Add item to task list: first 3 moves must be drops
Disallow moving until intial 3 drops
check for legal rook moves
check for legal bishop moves
check for legal knight moves
Update task list
check for legal pawn moves
Add board notation back