GameManager.cs

using UnityEngine;
using System.Collections;

public class GameManager : MonoBehaviour {

    public BoardManager boardScript;

    private int level = 3;
	// Use this for initialization
	void Awake ()
    {
        boardScript = GetComponent<BoardManager>();
        
	}
	
    void InitGame()
    {
        boardScript.SetupScene(level);
    }

	// Update is called once per frame
	void Update () {
	
	}
}