[Tutor] Problem with battleship game

[asetskiy at gmail.com]

Hello. I'm writing battleship game. I have one class for bot 
field:https://bpaste.net/show/b3ddcd7724f4 and one class for player 
field:https://bpaste.net/show/6a7981fb4634 I made class for player field 
from bot field class. For some reason I can't place ship properly for 
player.

Full text of program:https://bpaste.net/show/8b8f37bd3cca

What may be the problem?

Thanks for help in advance.