#include <bits/stdc++.h>
using namespace std;

int main() {
    int Q;
    cin >> Q;
    while (Q--) {
        int N,T;
        cin >> N >> T;
        if(N == 2) {
            if(T%2 == 1) {
                cout << "No" << endl;
            }
            else {
                cout << "Yes" << endl;
                cout << 1 << " " << 2 << " " << T/2 << endl;
            }
            continue;
        }
        bool flag = false;
        for(int i = 0; i*2 <= T; i++) {
            if((T-i*2)%(N-2) == 0) {
                cout << "Yes" << endl;
                for(int j = 1; j <= N; j++) {
                    for(int k = j+1; k <= N; k++) {
                        if(j == 1) {
                            cout << j << " " << k << " " << i << endl;
                        }
                        else {
                            cout << j << " " << k << " " << (T-i*2)/(N-2) << endl;
                        }
                    }
                }
                flag = true;
                break;
            }
        }
        if(!flag) {
            cout << "No" << endl;
        }
    }
}