input: hm73
SBCH selected.
A1 selected.
SEQO selected.
B4 selected.
TBCO selected.
C2 selected.
TECO selected.
D2 selected.
SBQO selected.
A4 selected.
TECH selected.
D1 selected.
SECO selected.
B2 selected.
TBQH selected.
B3 selected.
SBQH selected.
B1 selected.
SECH selected.
A2 selected.

    1    2    3    4
  +----+----+----+----+
a |    |    |    |    |
  |    |    |    |    |
  +----+----+----+----+
b |    |    |    |    |
  |    |    |    |    |
  +----+----+----+----+
c |    |    |    |    |
  |    |    |    |    |
  +----+----+----+----+
d |    |    |    |    |
  |    |    |    |    |
  +----+----+----+----+

Available:
SB SB SB SB SE SE SE SE TB TB TB TB TE TE TE TE 
CH CO QH QO CH CO QH QO CH CO QH QO CH CO QH QO 

Player 1's turn to select a piece:
Enter a piece:SBCH selected.

Player 2's turn to select a square:
A1 selected.

    1    2    3    4
  +----+----+----+----+
a | SB |    |    |    |
  | CH |    |    |    |
  +----+----+----+----+
b |    |    |    |    |
  |    |    |    |    |
  +----+----+----+----+
c |    |    |    |    |
  |    |    |    |    |
  +----+----+----+----+
d |    |    |    |    |
  |    |    |    |    |
  +----+----+----+----+

Available:
SB SB SB SE SE SE SE TB TB TB TB TE TE TE TE 
CO QH QO CH CO QH QO CH CO QH QO CH CO QH QO 

Player 2's turn to select a

    1    2    3    4
  +----+----+----+----+
a |    |    |    |    |
  |    |    |    |    |
  +----+----+----+----+
b |    |    |    |    |
  |    |    |    |    |
  +----+----+----+----+
c |    |    |    |    |
  |    |    |    |    |
  +----+----+----+----+
d |    |    |    |    |
  |    |    |    |    |
  +----+----+----+----+

Available:
SB SB SB SB SE SE SE SE TB TB TB TB TE TE TE TE
CH CO QH QO CH CO QH QO CH CO QH QO CH CO QH QO

Player 1's turn to select a piece:
Enter a piece:SBCH selected.

Player 2's turn to select a square:
A1 selected.

    1    2    3    4
  +----+----+----+----+
a | SB |    |    |    |
  | CH |    |    |    |
  +----+----+----+----+
b |    |    |    |    |
  |    |    |    |    |
  +----+----+----+----+
c |    |    |    |    |
  |    |    |    |    |
  +----+----+----+----+
d |    |    |    |    |
  |    |    |    |    |
  +----+----+----+----+

Available:
SB SB SB SE SE SE SE TB TB TB TB TE TE TE TE
CO QH QO CH CO QH QO CH CO QH QO CH CO QH QO

Player 2's turn to select a pi