Chess program 
=============
This simple application allows the user to play chess.  Moves can be made by human or computer.

GUI
===
The GUI shows a 2D chess board and whichever pieces are in play (it starts with a new game, ready to play).
	Last move and currently selected square are highlighted in different colors.
	List of all moves made so far in the game are listed on the side.

Text feedback is given for the game state (who's turn it is, and if it is checkmate or stalemate).

The user makes a move by clicking the source and destination square (for castling and en passant move the king or pawn to its natural destination square).
	Any click (if it is one of your pieces) highlights that square
	If some square highlighted, then:
		if second click is legal move, do it and unhighlight
		otherwise unhighlight with no move
	else unhighlight without moving
	

An "AI move" button makes the computer move (choose a random move from those available).

An "Undo" button takes back the most recent move.

A "Reset" button puts the board in its correct configuration for the first turn of the game.

Game rules
==========
Standard chess rules apply.  The 3-move-repetition, 50-move rule, and underpromotion are not implemented in this version.
