Chaned the type of score from int to double.
Now changing all (x, y) coordinates into Bitboard.
Still changing all (x, y) coordinates into Bitboard.
Almost replaced all (x, y) coordinates with BitBoard.
Replaced all (x, y) coordinates with BitBoard completely. There may be still some bugs.
Trivial changes.
Added learning algorithm.
Rnadomized jouseki data every time when the game is initialized, and simplified Make mechanism.
Changed the directory structure.