Record Case Detail

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terminate called after throwing an instance of 'UsedPieceException'
  what():  SEQH is already used.

Your answer may be identical to the JOJ answer in the first several lines.

However, the main problem you meet now is Runtime Error. And the exit code of your program is -6, which should be 0.

Please double check your code to solve this problem and try again.

    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:
SBCO selected.

Player 2's turn to select a square:
A4 selected.

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

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

Player 2's turn to select a piece:
SBQH selec

    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:
SECH selected.

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

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

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

Player 2's turn to select a piece:
SBCO sele

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JOJ Answer