Minimax For Connect four doesn't return a value
<p>When i run this program i get an error that MinimaxNode' object has no attribute 'value'</p>

<p>ConnectFour is an other class that initializes the board and marks the moves, checks if someone won, etc.
Utility just returns 2 points (it is still in progress)</p>

<p>The problem arises that in MinimaxPlayer in child.get_minimax_value as it puts an error that MinimaxNode' object has no attribute 'value'</p>
