#include<bits/stdc++.h>
using namespace std;
typedef long long LL;
template <typename T> inline void read(T &F) {
    int R = 1; F = 0; char CH = getchar();
    for(; !isdigit(CH); CH = getchar()) if(CH == '-') R = -1;
    for(; isdigit(CH); CH = getchar()) F = F * 10 + CH - 48;
    F *= R;
}
inline void file(string str) {
    freopen((str + ".in").c_str(), "r", stdin);
    freopen((str + ".out").c_str(), "w", stdout);
}
vector<int> R;
void calc(int cnt, LL x) {
    if(cnt == 0) {
        assert(x == 0);
        return;
    }
    int l = 1, r = cnt, res = 0;
    while(l <= r) {
        LL mid = (l + r) >> 1;
        if(x - 1LL * mid * (mid + 1) >= (cnt - mid) * 2)
            res = mid, l = mid + 1;
        else r = mid - 1;
    }
    R.emplace_back(res); calc(cnt - 1, x - 1LL * res * (res + 1));
}
int main() {
    //file("");
    int T; read(T);
    while(T--) {
        int n, m; read(n), read(m); R.clear();
        if(n % 4 == 0 || (n + 1) % 4 == 0) {
            puts("Yes");
            calc(n, 1LL * n * (n + 1) / 2);
            int f = 0;
            for(auto i : R) {
                f ^= 1;
                for(int j = 1; j <= i; j++, puts(""))
                    for(int k = 1; k <= m; k++)
                        putchar('0' + f);
            }
        }
        else if(m % 4 == 0 || (m + 1) % 4 == 0) {
            puts("Yes");
            calc(m, 1LL * m * (m + 1) / 2);
            for(int i = 1; i <= n; i++, puts("")) {
                int f = 0;
                for(auto j : R) {
                    f ^= 1;
                    for(int k = 1; k <= j; k++)
                        putchar('0' + f);
                }
            }
        }
        else puts("No");
    }
    
    #ifdef _MagicDuck
        fprintf(stderr, "# Time: %.3lf s", (double)clock() / CLOCKS_PER_SEC);
    #endif
    return 0;
}