#include<bits/stdc++.h>
#define endl '\n'
#define ll long long

using namespace std;

const int N = 1e3 + 5;

int t, n, m;
signed main()
{
    //ios::sync_with(false); cin.tie(nullptr); cout.tie(nullptr);
    cin >> t;
    while(t--) {
        cin >> n >> m;
        
        int cnt = 1, c[N][N] = {0};
        for (int i = 1; i <= min(n, m); i++) {
            for (int j = 1; j <= i; j++) {
                c[j][i + 1 - j] = cnt++;
            }
        }
        for (int i = min(n, m) + 1; i <= max(n, m); i++) {
            for (int j = i - min(n, m) + 1; j <= i; j++) {
                c[j][i + 1 - j] = cnt++;
            }
        }
        for (int i = max(n, m) + 1; i <= n + m; i++) {
            for (int j = i - min(n, m) + 1; j <= max(n, m); j++) {
                c[j][i + 1 - j] = cnt++;
            }
        }
        
        cout << "Yes" << endl;
        if (n > m) {
            for (int i = 1; i <= n; i++) {
                for (int j = 1; j <= m; j++) {
                    cout << c[i][j] << " ";
                }
                cout << endl;
            }
        } else {
            for (int i = 1; i <= n; i++) {
                for (int j = 1; j <= m; j++) {
                    cout << c[j][i] << " ";
                }
                cout << endl;
            }
        }
    } 
    return 0;
}