Point Making

#include <iostream>
#include <string>
#include <algorithm>
#include <vector>

using namespace std;


const char H = 'H';
const char C = 'C';
const char NONE = '[ ]';
const char NO_ONE = 'N';

void rules();
char FirstMove(string question);
int Movement(string question, int high, int low = 1);
char YourPiece();
char Opponent(char Piece);
void showBoard(const vector<char>& board);
char winner(const vector<char>& board);
bool Acceptable(const vector<char>& board, int move);
int YourMove(vector<char>& board, char You);
int OpponentMove(vector<char>& board, char Opponent);
void ShowWinner(char winner, char Opponent, char You);
int Points;

int main()
{
int move;
const int NUM_SQUARES = 25;
vector<char>& board(NUM_SQUARES, NONE);

rules();
char You = YourPiece();
char YPiece = H;
char Opponent = Opponent(You);
char OPiece = C;
showBoard(board);

while (winner(board)  == NO_ONE)
{
if (turn == You)
{
move = YourMove(board, You);
board[move] = You;
}
else
{
move = OpponentMove(board, Opponent);
board[move] = Opponent;
}
showBoard(board);
turn = Opponent(turn);
}
ShowWinner(winner(board), Opponent, You);
return 0;
}

void rules()
{
cout<<"Welcome to Bloodlust Shaman's first original game!\n";
cout<<"Test your skills in Dominate Diamond!\n";

cout<<"To move press a number that corresponds to you\n";
cout<<"To quit type: 'leave'   To recieve rules type: 'gamerules'!\n";
cout<<"Okay have fun and remember to never leave your guard down in this game!\n";

cout<< "   21-----22-----23-----24-----25\n";
cout<< "   | \     |    / | \    |    / |\n";
cout<< "   |  \    |   /  |  \   |   /  |\n";
cout<< "   |   \   |  /   |   \  |  /   |\n";
cout<< "   16-----17-----18-----19-----20\n";
cout<< "   |     / | \    |    / | \    |\n";
cout<< "   |    /  |  \   |   /  |  \   |\n";
cout<< "   |   /   |   \  |  /   |   \  |\n";
cout<< "   11-----12-----13-----14-----15\n";
cout<< "   | \     |    / | \    |    / |\n";
cout<< "   |  \    |   /  |  \   |   /  |\n";
cout<< "   |   \   |  /   |   \  |  /   |\n";
cout<< "   6----- 7------8----- 9----- 10\n";
cout<< "   |     / | \   |    / | \     |\n";
cout<< "   |    /  |  \  |   /  |  \    |\n";
cout<< "   |   /   |   \ |  /   |   \   |\n";
cout<< "   1----- 2----- 3----- 4 ----- 5\n\n";

cout<< "Remember to never leave your guard down!\n\n";
}

char FirstMove(string question)
{
char response;
do
{
cout<< question<< " (y/n): ";
cin>> response;
} while (response != 'y' && response != 'n' && response != 'Y' && response != 'N' && response != 'yes' && response != 'no');

return response;
}

int Movement(string question, int high, int low)
{
int number;
do
{
cout<< question << "(" << low << " - " << high << "): ";
cin>> number;
} while (number > high || number < low);

return number;
}

char YourPiece()
{
char go_first = FirstMove("Do you require the first move?");
if (go_first == 'y')
{
return H;
}
else
{
return H;
}
}

char opponent(char piece) //may have a problem here
{
return C;
}

void showBoard(const vector<char>& board)
{
cout<<"\n\t   " << board[21] << "-----" << board[22] << "-----" << board[23] << "-----" << board[24] << "-----" << board[25];
cout<<"\n\t   | \     |    / | \    |    / |";
cout<<"\n\t   |  \    |   /  |  \   |   /  |";
cout<<"\n\t   |   \   |  /   |   \  |  /   |";
cout<<"\n\t   " << board[16] << "-----" << board [17] << "-----" << board[18] << "-----" << board[19] << "-----" << board[20];
cout<<"\n\t   |     / | \    |    / | \    |";
cout<<"\n\t   |    /  |  \   |   /  |  \   |";
cout<<"\n\t   |   /   |   \  |  /   |   \  |";
cout<<"\n\t   " << board[11] << "-----" << board[12] << "-----" << board[13] << "-----" << board[14] << "-----" << board[15];
cout<<"\n\t   | \     |    / | \    |    / |";
cout<<"\n\t   |  \    |   /  |  \   |   /  |";
cout<<"\n\t   |   \   |  /   |   \  |  /   |";
cout<<"\n\t   " << board[6] << "----- " << board[7] << "-----" << board[8] << "----- " << board[9] << "----- " << board[10];
cout<<"\n\t   |     / | \    |    / | \     |";
cout<<"\n\t   |    /  |  \   |   /  |  \    |";
cout<<"\n\t   |   /   |   \  |  /   |   \   |";
cout<<"\n\t   "<< board[1] << "----- " << board[2] << "----- " << board[3] << "----- " << board[4] << " ----- "<< board[5];
cout<<"\n\n";
}

char winner(const vector<char>& board)
{
//the diamond win
const int WINNING_ROW[1][13] = { {3, 7, 8, 9, 11, 12, 13, 14, 15, 17, 18, 19, 23} };

const int TOTAL_ROW = 1;

int YourMove(vector<char>& board, char You);
int OpponentMove(vector<char>& board, char Opponent);
void ShowWinner(char winner, char Opponent, char You);
int Points;

int YourMove(vector<char>& board, char You, int Points);
int OpponentMove(vector<char>& board, char Opponent, int Points);
void ShowWinner(char winner, char Opponent, char You, int Points);
int Points

//all posible ways making a triangle
const Triangle{ {1, 2, 7}, {2, 7, 3}, {3, 4, 9} (so one and so one) }