Battleship!
-----------

Revealed board (for verification purposes):

  +-+-+-+-+-+-+-+
1 |0|0|0|2|0|0|0|
  +-+-+-+-+-+-+-+
2 |0|0|0|2|0|0|0|
  +-+-+-+-+-+-+-+
3 |3|3|3|0|0|0|0|
  +-+-+-+-+-+-+-+
4 |5|5|5|5|5|0|0|
  +-+-+-+-+-+-+-+
5 |0|0|4|4|4|4|0|
  +-+-+-+-+-+-+-+
   1 2 3 4 5 6 7

  +-+-+-+-+-+-+-+
1 | | | | | | | |
  +-+-+-+-+-+-+-+
2 | | | | | | | |
  +-+-+-+-+-+-+-+
3 | | | | | | | |
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4 | | | | | | | |
  +-+-+-+-+-+-+-+
5 | | | | | | | |
  +-+-+-+-+-+-+-+
   1 2 3 4 5 6 7

Enter a row to guess > 1
Enter a column to guess > 1
Miss!  There was nothing at that location

  +-+-+-+-+-+-+-+
1 |0| | | | | | |
  +-+-+-+-+-+-+-+
2 | | | | | | | |
  +-+-+-+-+-+-+-+
3 | | | | | | | |
  +-+-+-+-+-+-+-+
4 | | | | | | | |
  +-+-+-+-+-+-+-+
5 | | | | | | | |
  +-+-+-+-+-+-+-+
   1 2 3 4 5 6 7

Enter a row to guess > 1
Enter a column to guess > 1
You already guessed that location!

  +-+-+-+-+-+-+-+
1 |0| | | | | | |
  +-+-+-+-+-+-+-+
2 | | | | | | | |
  +-+-+-+-+-+-+-+
3 | | | | | | | |
  +-+-+-+-+-+-+-+
4 | | | | | | | |
  +-+-+-+-+-+-+-+
5 | | | | | | | |
  +-+-+-+-+-+-+-+
   1 2 3 4 5 6 7

Enter a row to guess > 1
Enter a column to guess > 1
You already guessed that location!

  +-+-+-+-+-+-+-+
1 |0| | | | | | |
  +-+-+-+-+-+-+-+
2 | | | | | | | |
  +-+-+-+-+-+-+-+
3 | | | | | | | |
  +-+-+-+-+-+-+-+
4 | | | | | | | |
  +-+-+-+-+-+-+-+
5 | | | | | | | |
  +-+-+-+-+-+-+-+
   1 2 3 4 5 6 7

Enter a row to guess > 1
Enter a column to guess > 8
Error: Invalid column.

  +-+-+-+-+-+-+-+
1 |0| | | | | | |
  +-+-+-+-+-+-+-+
2 | | | | | | | |
  +-+-+-+-+-+-+-+
3 | | | | | | | |
  +-+-+-+-+-+-+-+
4 | | | | | | | |
  +-+-+-+-+-+-+-+
5 | | | | | | | |
  +-+-+-+-+-+-+-+
   1 2 3 4 5 6 7

Enter a row to guess > 6
Enter a column to guess > 1
Error: Invalid row.

  +-+-+-+-+-+-+-+
1 |0| | | | | | |
  +-+-+-+-+-+-+-+
2 | | | | | | | |
  +-+-+-+-+-+-+-+
3 | | | | | | | |
  +-+-+-+-+-+-+-+
4 | | | | | | | |
  +-+-+-+-+-+-+-+
5 | | | | | | | |
  +-+-+-+-+-+-+-+
   1 2 3 4 5 6 7

Enter a row to guess > 6
Enter a column to guess > 8
Error: Invalid row.

  +-+-+-+-+-+-+-+
1 |0| | | | | | |
  +-+-+-+-+-+-+-+
2 | | | | | | | |
  +-+-+-+-+-+-+-+
3 | | | | | | | |
  +-+-+-+-+-+-+-+
4 | | | | | | | |
  +-+-+-+-+-+-+-+
5 | | | | | | | |
  +-+-+-+-+-+-+-+
   1 2 3 4 5 6 7

Enter a row to guess > 1
Enter a column to guess > 1
You already guessed that location!

  +-+-+-+-+-+-+-+
1 |0| | | | | | |
  +-+-+-+-+-+-+-+
2 | | | | | | | |
  +-+-+-+-+-+-+-+
3 | | | | | | | |
  +-+-+-+-+-+-+-+
4 | | | | | | | |
  +-+-+-+-+-+-+-+
5 | | | | | | | |
  +-+-+-+-+-+-+-+
   1 2 3 4 5 6 7

Enter a row to guess > a
Error.  You did not enter an integer value.  Please try again.

  +-+-+-+-+-+-+-+
1 |0| | | | | | |
  +-+-+-+-+-+-+-+
2 | | | | | | | |
  +-+-+-+-+-+-+-+
3 | | | | | | | |
  +-+-+-+-+-+-+-+
4 | | | | | | | |
  +-+-+-+-+-+-+-+
5 | | | | | | | |
  +-+-+-+-+-+-+-+
   1 2 3 4 5 6 7

Enter a row to guess > dog
Error.  You did not enter an integer value.  Please try again.

  +-+-+-+-+-+-+-+
1 |0| | | | | | |
  +-+-+-+-+-+-+-+
2 | | | | | | | |
  +-+-+-+-+-+-+-+
3 | | | | | | | |
  +-+-+-+-+-+-+-+
4 | | | | | | | |
  +-+-+-+-+-+-+-+
5 | | | | | | | |
  +-+-+-+-+-+-+-+
   1 2 3 4 5 6 7

Enter a row to guess > 1
Enter a column to guess > 1
You already guessed that location!

  +-+-+-+-+-+-+-+
1 |0| | | | | | |
  +-+-+-+-+-+-+-+
2 | | | | | | | |
  +-+-+-+-+-+-+-+
3 | | | | | | | |
  +-+-+-+-+-+-+-+
4 | | | | | | | |
  +-+-+-+-+-+-+-+
5 | | | | | | | |
  +-+-+-+-+-+-+-+
   1 2 3 4 5 6 7

Enter a row to guess > 1
Enter a column to guess > 2
Miss!  There was nothing at that location

  +-+-+-+-+-+-+-+
1 |0|0| | | | | |
  +-+-+-+-+-+-+-+
2 | | | | | | | |
  +-+-+-+-+-+-+-+
3 | | | | | | | |
  +-+-+-+-+-+-+-+
4 | | | | | | | |
  +-+-+-+-+-+-+-+
5 | | | | | | | |
  +-+-+-+-+-+-+-+
   1 2 3 4 5 6 7

Enter a row to guess >