def board_initial():
"""
An example initial board.
"""
Piece.symbols = ['b', 'w']
Piece.symbols_king = ['B', 'W']
board = Board()
cells = eval("[[None, 'b', None, 'b', None, 'b', None, 'b'], " + \
"['b', None, 'b', None, 'b', None, 'b', None], " + \
"[None, 'b', None, 'b', None, 'b', None, 'b'], " + \
"[None, None, None, None, None, None, None, None], " + \
"[None, None, None, None, None, None, None, None], " + \
"['w', None, 'w', None, 'w', None, 'w', None], " + \
"[None, 'w', None, 'w', None, 'w', None, 'w'], " + \
"['w', None, 'w', None, 'w', None, 'w', None]]")
for row, lst in enumerate(cells):
for col, item in enumerate(lst):
if item is not None:
if item == 'w':
board.place(row, col, Piece('white'))
else:
board.place(row, col, Piece())
return board
def board_capture_whites():
"""
A board where a black captures a series of white.
"""
Piece.symbols = ['b', 'w']
Piece.symbols_king = ['B', 'W']
board = Board()
board.place(7, 0, Piece(is_king=True))
board.place(1, 6, Piece())
board.place(2, 1, Piece('white'))
board.place(2, 3, Piece('white'))
board.place(2, 5, Piece('white'))
board.place(4, 1, Piece('white'))
board.place(4, 3, Piece('white'))
board.place(4, 5, Piece('white'))
board.place(6, 1, Piece('white'))
board.place(6, 3, Piece('white'))
board.place(6, 5, Piece('white'))
return board
def board_figure1():
"""
The board from Figure 1.
"""
Piece.symbols = ['b', 'w']
Piece.symbols_king = ['B', 'W']
board = Board()
board.place(0, 7, Piece('white', is_king=True))
board.place(1, 2, Piece('white', is_king=True))
board.place(1, 4, Piece('white', is_king=True))
board.place(3, 0, Piece('white'))
board.place(3, 2, Piece('white'))
board.place(4, 7, Piece('white'))
board.place(5, 0, Piece('white'))
board.place(5, 2, Piece('white'))
board.place(6, 3, Piece('white'))
board.place(6, 5, Piece('white'))
board.place(6, 7, Piece('white'))
board.place(7, 0, Piece('white'))
board.place(2, 5, Piece())
board.place(2, 7, Piece())
board.place(3, 6, Piece())
board.place(4, 3, Piece())
board.place(4, 5, Piece())
return board
def board_capture_transition():
board = Board()
board.place(1, 0, Piece())
board.place(1, 2, Piece())
board.place(1, 4, Piece())
board.place(1, 6, Piece())
board.place(2, 1, Piece())
board.place(2, 5, Piece())
board.place(3, 0, Piece('white'))
board.place(3, 2, Piece())
board.place(3, 6, Piece())
board.place(4, 1, Piece('white'))
board.place(4, 7, Piece('white'))
board.place(5, 0, Piece('white'))
board.place(5, 2, Piece('white'))
board.place(5, 6, Piece())
board.place(6, 1, Piece('white'))
board.place(6, 3, Piece())
board.place(7, 4, Piece('black', True))
board.place(7, 6, Piece('black', True))
return board
def board_capture_blacks2():
"""
A board where a white captures a series of blacks.
Version 2
"""
Piece.symbols = ['b', 'w']
Piece.symbols_king = ['B', 'W']
board = Board()
board.place(7, 0, Piece('white'))
board.place(7, 6, Piece('white'))
board.place(1, 6, Piece('white', is_king=True))
board.place(1, 0, Piece('white', is_king=True))
board.place(2, 1, Piece())
board.place(2, 3, Piece())
board.place(2, 5, Piece())
board.place(4, 1, Piece())
board.place(4, 3, Piece())
board.place(4, 5, Piece())
board.place(6, 1, Piece())
board.place(6, 3, Piece())
board.place(6, 5, Piece())
return board