import java.io.*;

public class Main {
private int n_case;
private int[][] p_int;
private int[][] memo;
private boolean[] res;

public static void main(String[] args) {
    Main test = new Main();
    test.in();
    test.out();
}

public void in() {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    try {
        this.n_case = Integer.parseInt (br.readLine().split(" ")[0]);
        this.res = new boolean[this.n_case];
        for (int i=0; i<this.n_case; i++) {
            int s = Integer.parseInt (br.readLine().split(" ")[0]);
            this.p_int = new int[s][s];
            this.memo = new int[s][s];
            for (int j=0; j<s; j++) {
                String[] helper = new String[s];
                helper = br.readLine().split(" ");
                for (int k=0; k<s; k++) {
                    this.p_int[j][k] = Integer.parseInt(helper[k]);
                }
            }
            this.res[i] = jump(0,0);
        }
    } catch (Exception ex) {}
}

public void out() {
    for (int i=0;i<this.res.length;i++) {
        if (this.res[i]) {
            System.out.println ("Yes");
        } else {
            System.out.println ("No");
        }
    }
}

public boolean jump (int y, int x) {
    int l = this.p_int[0].length;
    if (y >= l || x >= l ) {
        return false;
    } 
    if ( (x == (l-1)) && (y == (l-1)) ) {
        return true;
    } 
    if (this.memo[y][x]== 1) {
        return true;
    } 
    if (this.memo[y][x]== -1) {
        return false;
    }

    boolean ret;
    int jumpsize = this.p_int[y][x];
    ret = jump (y, x + jumpsize) || jump (y + jumpsize, x);
    if (ret) {
        this.memo[y][x] = 1;
    } else {
        this.memo[y][x] = -1;
    }
    return ret;
}

}