#include <algorithm>
#include <atcoder/all>
#include <bitset>
#include <cassert>
#include <cmath>
#include <ctime>
#include <functional>
#include <iomanip>
#include <iostream>
#include <map>
#include <queue>
#include <random>
#include <set>
#include <stack>
#include <string>
#include <tuple>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>
using namespace std;
using namespace atcoder;
typedef long long ll;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define repr(i, n) for (int i = (int)(n) - 1; i >= 0; i--)
#define repk(i, k, n) for (int i = k; i < (int)(n); i++)
#define all(v) v.begin(), v.end()
#define mod1 1000000007
#define mod2 998244353
#define mod3 100000007
#define vi vector<int>
#define vs vector<string>
#define vc vector<char>
#define vl vector<ll>
#define vb vector<bool>
#define vvi vector<vector<int>>
#define vvc vector<vector<char>>
#define vvl vector<vector<ll>>
#define vvb vector<vector<bool>>
#define vvvi vector<vector<vector<int>>>
#define vvvl vector<vector<vector<ll>>>
#define pii pair<int, int>
#define pil pair<int, ll>
#define pli pair<ll, int>
#define pll pair<ll, ll>
#define vpii vector<pair<int, int>>
#define vpll vector<pair<ll, ll>>
#define vvpii vector<vector<pair<int, int>>>
#define vvpll vector<vector<pair<ll, ll>>>

template <typename T>
void debug(T e) {
    cerr << e << endl;
}

template <typename T>
void debug(vector<T> &v) {
    rep(i, v.size()) { cerr << v[i] << " "; }
    cerr << endl;
}

template <typename T>
void debug(vector<vector<T>> &v) {
    rep(i, v.size()) {
        rep(j, v[i].size()) { cerr << v[i][j] << " "; }
        cerr << endl;
    }
}

template <typename T>
void debug(vector<pair<T, T>> &v) {
    rep(i, v.size()) { cerr << v[i].first << " " << v[i].second << endl; }
}

template <typename T>
void debug(set<T> &st) {
    for (auto itr = st.begin(); itr != st.end(); itr++) {
        cerr << *itr << " ";
    }
    cerr << endl;
}

template <typename T>
void debug(multiset<T> &ms) {
    for (auto itr = ms.begin(); itr != ms.end(); itr++) {
        cerr << *itr << " ";
    }
    cerr << endl;
}

template <typename T>
void debug(map<T, T> &mp) {
    for (auto itr = mp.begin(); itr != mp.end(); itr++) {
        cerr << itr->first << " " << itr->second << endl;
    }
}

void debug_out() { cerr << endl; }

template <typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
    cerr << H << " ";
    debug_out(T...);
}

using mint = modint998244353;

void debug_mint1(vector<mint> &vec) {
    for (int i = 0; i < vec.size(); i++) {
        cerr << vec[i].val() << " ";
    }
    cerr << endl;
}

void debug_mint2(vector<vector<mint>> &vec) {
    for (int i = 0; i < vec.size(); i++) {
        for (int j = 0; j < vec[i].size(); j++) {
            cerr << vec[i][j].val() << " ";
        }
        cerr << endl;
    }
}

int main() {
    ll T;
    cin >> T;
    while (T--){
        ll H, W;
        cin >> H >> W;
        if (H == 3 && W == 3){
            cout << "No" << endl;
            continue;
        }
        else{
            cout << "Yes" << endl;
        }
        bool larger = false;
        if (H > W){
            swap(H, W);
            larger = true;
        }
        vector<vector<char>> S(H, vector<char>(W));
        if (H % 2 == 0){
            rep(i, H){
                rep(j, W){
                    if (i % 2 == 0) S[i][j] = '0';
                    else S[i][j] = '1';
                }
            }
        }
        else if (W % 2 == 0){
            rep(i, H){
                rep(j, W){
                    if (j % 2 == 0) S[i][j] = '0';
                    else S[i][j] = '1';
                }
            }
        }
        else{
            rep(i, H) rep(j, W) S[i][j] = '0';
            // H = 3 の場合を構築できれば勝ち
            for (ll j = 0; j < W / 4; j++){
                S[0][j * 4] = '1';
                S[0][j * 4 + 1] = '1';
                S[1][j * 4 + 1] = '1';
                S[1][j * 4 + 2] = '1';
                S[2][j * 4 + 2] = '1';
                S[2][j * 4 + 3] = '1';
            }
            S[0][W - 1] = '1';
            S[2][W - 1] = '1';
            if (W % 4 == 3){
                S[0][W - 3] = '1';
                S[1][W - 3] = '1';
                S[1][W - 2] = '1';
            }
            for (ll i = 3; i < H; i++){
                for (ll j = 0; j < W; j++){
                    if (i % 2 == 0){
                        S[i][j] = S[2][j];
                    }
                    else{
                        if (S[2][j] == '1') S[i][j] = '0';
                        else S[i][j] = '1';
                    }
                }
            }
        }
        if (larger){
            for (ll j = 0; j < W; j++){
                for (ll i = 0; i < H; i++){
                    cout << S[i][j];
                }
                cout << endl;
            }
        }
        else{
            for (ll i = 0; i < H; i++){
                for (ll j = 0; j < W; j++){
                    cout << S[i][j];
                }
                cout << endl;
            }
        }
    }
}