Domineering C++ game

I am making a domineering game for my coursework, I have been trying to do something new by adding a lot of void functions and now for some weird reason my board isn't working as it is saying identifier "board" is undefined but I have never really had a problem with my board until now and I haven't figured it out yet. The error is in the voidAt() function.

#include <iostream>
#include <Windows.h>
#include <vector>
using namespace std;
int horizontal = 0;
int vertical = 0;
int row = 0;
int column = 0;
int x = row = 0;
int y = column = 0;
bool gameOver;
bool player = horizontal && vertical;
bool islegal;

void Setup()
{
gameOver = false;
}
void Draw()
{
// specifty default value to fill the vector elements
int mapSize = 0;

cout << "Enter the size of board => ";
cin >> mapSize;

vector< vector<char> > board(mapSize, vector<char>(mapSize, 'e'));
for (int i = 0; i < mapSize; i++) {
    for (int j = 0; j < mapSize; j++) {
        cout << board[i][j] << " ";
    }
    cout << endl;
} 
    }
    void play()
    {
if (player == horizontal) {
    cout << ("Horizontal to play");
} else {
    cout << ("Vertical to play");
}
    }
    void playAt(int row, int column, bool player) {
board[row][column] = true;
if (player == horizontal) {
    board[x][y + 1] = true;
    board[x][y + 2] = true;
} else {
    board[x + 1][y] = true;
    board[x + 2][y] = true;
}
    }
    void Input()
    {

    }
    void Logic()
    {

    }
    int main()
    {
Setup();
while (!gameOver)
{
    Draw();
    Input();
    Logic();
}
    }