#include<iostream>
using namespace std;
int Q,N,T;
main()
{
	cin>>Q;
	for(;Q--;)
	{
		cin>>N>>T;
		if(T%2==0)
		{
			cout<<"Yes"<<endl;
			for(int i=1;i<N;i++)for(int j=i+1;j<=N;j++)
			{
				cout<<i<<" "<<j<<" "<<(i==1?T/2:0)<<endl;
			}
		}
		else if(T%N==0)
		{
			cout<<"Yes"<<endl;
			for(int i=1;i<N;i++)for(int j=i+1;j<=N;j++)
			{
				cout<<i<<" "<<j<<" "<<T/N<<endl;
			}
		}
		else if(N>2&&T%(N-2)==0)
		{
			cout<<"Yes"<<endl;
			for(int i=1;i<N;i++)for(int j=i+1;j<=N;j++)
			{
				cout<<i<<" "<<j<<" "<<(i==1?0:T/(N-2))<<endl;
			}
		}
		else cout<<"No"<<endl;
	}
}