C++ Tic-Tac-toe with a twist

[idislikemacs]

I'm done with my tic-tac-toe program, but now I want to ask a simple question to the winner of the match to make the victory absolute. Would I need a while loop? I also feel my code is too messy, how can I enhance/improve it? Thank you!

#include <iostream>

using namespace std;

bool checkWin (char);


void displayMap ();


char display [5][5] = { { ' ', '|', ' ', '|', ' ' }, { '-', '+', '-', '+', '-' }, { ' ', '|', ' ', '|', ' ' }, { '-', '+', '-', '+', '-' }, { ' ', '|', ' ', '|', ' ' } };

int main ()
{
    system("color f4");

    cout << "Welcome to Kevin Castillo's Tic-Tac-Toe C++ Game...Good Luck...haha!\n" 
     <<endl;

    char map [3][3] = { { ' ', ' ', ' ' }, { ' ', ' ', ' ' }, { ' ', ' ', ' ' } },
        player[2] = { ' ', ' ' },
        again = 'y';

    bool gameWon = false;

    while (again != 'n')
    {
        int turns = 0;
        cout << "Player 1 enter the character you are going to use (no spaces): ";
        cin >> player[0];
        while (player[0] == ' ' || player[0] == '   ')
        {
            cout << "You entered a space (no spaces), re-enter a new character: ";
            cin >> player[0];
        }
        cout << endl << "Player 2 enter the character you are going to use (no spaces): ";
        cin >> player[1];
        while (player[1] == ' ' || player[1] == '   ')
        {
            cout << "You entered a space (no spaces), re-enter a new character: ";
            cin >> player[1];
        }
        while (turns != 9 && !gameWon)
        {
            unsigned short x, y;
            cout << endl << endl;
            bool p1turn = true, p2turn = true;
            while (p1turn && turns != 9)
            {
                p1turn = false;
                displayMap();
                cout << endl << endl << "Player 1: Enter 2 numbers (1-3) separated by a space to use the place: ";
                cin >> x >> y;
                while (x > 3 || x < 1 || y > 3 || y < 1)
                {
                    cout << "You must enter numbers from 1 to 3, please re-enter them: ";
                    cin >> x >> y;
                }
                if (map[x - 1][y - 1] != ' ')
                {
                    p1turn = true;
                    cout << "You entered a coordinate that was already taken." << endl << endl;
                }
                else
                {
                    map[x - 1][y - 1] = player[0];
                    x = (x * 2) - 1;
                    y = (y * 2) - 1;
                    display[x - 1][y - 1] = player[0];
                    if (checkWin(player[0])) gameWon = true;
                    turns++;
                }
            }
            while (p2turn && turns != 9 && !gameWon)
            {
                p2turn = false;
                cout << endl;
                displayMap();
                cout << endl << endl << "Player 2:  Enter 2 numbers (1-3) separated by a space to use the place: ";
                cin >> x >> y;
                while (x > 3 || x < 1 || y > 3 || y < 1)
                {
                    cout << "You must enter numbers from 1 to 3, please re-enter them: ";
                    cin >> x >> y;
                }
                if (map[x - 1][y - 1] != ' ')
                {
                    p2turn = true;
                    cout << "You entered a coordinate that was already taken." << endl << endl;
                }
                else
                {
                    map[x - 1][y - 1] = player[1];
                    x = (x * 2) - 1;
                    y = (y * 2) - 1;
                    display[x - 1][y - 1] = player[1];
                    if (checkWin(player[1])) gameWon = true;
                    turns++;
                }
            }
        }
        cout << endl << endl;
        displayMap();
        if (checkWin(player[0]))
            cout << endl << endl << "And the winner is: Player 1!!!" << endl << endl;
        else if (checkWin(player[1]))
            cout << endl << endl << "And the winner is: Player 2!!!" << endl << endl;
        else cout << endl << endl << "And it looks like we have a draw folks. Cats Game." << endl << endl;
        cout << "Play again? (y/n): ";
        cin >> again;

        if (again != 'n')
        {
            for (int x = 1; x <= 3; x++)
                for (int y = 1; y <= 3; y++)
                {
                    map[x - 1][y - 1] = ' ';
                    display[(x * 2) - 2][(y * 2) - 2] = ' ';
                }
        }
    }

    cout << endl << endl;
    system("Pause");
    return 0;
}

bool checkWin (char player)
{
    bool result = false;
    for (int x = 0; x < 5; x += 2)
    {
        bool thisResult = true;
        for (int y = 0; y < 5; y += 2)
            thisResult = thisResult && display[x][y] == player;
        result = result || thisResult;
    }
    for (int x = 0; x < 5; x += 2)
    {
        bool thisResult = true;
        for (int y = 0; y < 5; y += 2)
            thisResult = thisResult && display[y][x] == player;
        result = result || thisResult;
    }
    bool thisResult[2] = { true, true };
    int y;
    for (int x = 0; x < 5; x += 2)
    {
        y = 4 - x;
        thisResult[0] = thisResult[0] && display[x][y] == player;
    }
    result = result || thisResult[0];
    for (int x = 0; x < 5; x += 2)
    {
        y = x;
        thisResult[0] = thisResult[0] && display[x][y] == player;
    }
    result = result || thisResult[0];
    return result;
}

void displayMap ()
{
    cout << "  1 2 3" << endl << " " << endl;
    for (int x = 0; x < 5; x++)
    {
        if (x != 1 && x != 3) cout << (x + 2) / 2 << " ";
        else cout << "   ";
        for (int y = 0; y < 5; y++)
            cout << display[x][y];
        cout << endl;
    }
}

[Ancient Dragon]

Here's what I get when I enter a player's name (you need to explain in the question that you are looking for a number), and flush the input stream if input is wrong.

re-enter them: You must enter numbers from 1 to 3, please re-enter them: You mus
t enter numbers from 1 to 3, please re-enter them: You must enter numbers from 1
to 3, please re-enter them: You must enter numbers from 1 to 3, please re-enter
them: You must enter numbers from 1 to 3, please re-enter them: You must enter
numbers from 1 to 3, please re-enter them: You must enter numbers from 1 to 3, p
lease re-enter them: You must enter numbers from 1 to 3, please re-enter them: Y
ou must enter numbers from 1 to 3, please re-enter them: You must enter numbers
from 1 to 3, please re-enter them: You must enter numbers from 1 to 3, please re
-enter them: You must enter numbers from 1 to 3, please re-enter them: You must
enter numbers from 1 to 3, please re-enter them: You must enter numbers from 1 t
o 3, please re-enter them: You must enter numbers from 1 to 3, please re-enter t
hem: You must enter numbers from 1 to 3, please re-enter them: You must enter nu
mbers from 1 to 3, please re-enter them: You must enter numbers from 1 to 3, ple
ase re-enter them: You must enter numbers from 1 to 3, please re-enter them: You
must enter numbers from 1 to 3, please re-enter them: You must enter numbers fr
om 1 to 3, please re-enter them: You must enter numbers from 1 to 3, please re-e
nter them: You must enter numbers from 1 to 3, please re-enter them: You must en
ter numbers from 1 to 3, please re-enter them: You must enter numbers from 1 to
3, please re-enter them: You must enter numbers from 1 to 3, please re-enter the
m: You must enter numbers from 1 to 3, please re-enter them: You must enter numb
ers from 1 to 3, please re-enter them: You must enter numbers from 1 to 3, pleas
e re-enter them: You must enter numbers from 1 to 3, please re-enter them: You m
ust enter numbers from 1 to 3, please re-enter them: You must enter numbers from
1 to 3, please re-enter them: You must enter numbers from 1 to 3, please re-ent

[Ancient Dragon]

while (player[0] == ' ' || player[0] == ' ')

There is no such character as ' ' (four spaces between ticks), that is three or four characters, not one, and must be surrounded in double quotes, such as " ". Even that is wrong becsuse player[0] is a single character.