#include
#include
#include
#include \"game.h\"
#include \"
string does not name a type. The class in the string header is called std::string.
Please do not put using namespace std in a header file, it pollutes the global namespace for all users of that header. See also "Why is 'using namespace std;' considered a bad practice in C++?"
Your class should look like this:
#include
class Game
{
private:
std::string white;
std::string black;
std::string title;
public:
Game(std::istream&, std::ostream&);
void display(colour, short);
};