public bool CheckWallV(int xPos, int yPos)
{
if (!boardStatus[xPos, yPos].hasRightWall &&
!boardStatus[xPos + 1, yPos].hasRightWall &&
wallPegStatus[xPos, yPos].isOpen)
{
Board.PlaceVerticalWall(this, -1, xPos, yPos);
bool retVal;
//if still winnable place the wall, else revert back to no wall
if (_numPlayers == 2 && CheckWinnable(0) && CheckWinnable(1))
{
retVal = true;
}
else if (_numPlayers == 4 && CheckWinnable(0) && CheckWinnable(1) &&
CheckWinnable(2) && CheckWinnable(3))
{
retVal = true;
}
else
{
retVal = false;
}
UndoPlaceVerticalWall(this, -1, xPos, yPos);
return(retVal);
}
else
{
return(false);
}
}