Sure, let's have a README.

Make a data type for board state scores

Play faster at the cost of full tree traversal; memoize internally

Readability improvement for board display

Board now derives Ord, Eq; showBoardState -> show

Handle silly arguments.

Use a 2-dimensional array instead of a map for the board.

Add ignore file for intermediate & final binaries.

Allow command-line specification of number of human players.

Pull leaf score calculations into their own function.

Incorporate some refactoring advice, fix indentation error

Merged changes from git stash; build broken

Fix runtime problem.

Unnecessary lines removed

Comparisons refactored; play selection currently broken