#include <bits/stdc++.h>
using namespace std;
const long long N=2e5;
long long t,n,k,a[N]={0},b[N]={0};
bool flag;
int main()
{
	cin>>t;
    while (t--)
    {
        memset(b,0,sizeof(b));
        flag=true;
        cin>>n>>k;
        for (long long i=1;i<=n;i++)
        {
            cin>>a[i];
            b[a[i]]=1;
        }
        for (long long i=1;i<=n;i++)
        {
            if (b[a[i]+k]==1)
            {
                flag=false;
                cout<<"YES"<<endl;
                break;
            }
        }
        if (flag)
            cout<<"NO"<<endl;
    }
    return 0;
}