"""

https://yukicoder.me/problems/no/1571

"""

from sys import stdin
import sys

Q = int(stdin.readline())

for loop in range(Q):

    N,T = map(int,stdin.readline().split())

    if T % 2 == 0:
        ans = []
        
        for b in range(1,N+1):
            for a in range(1,b):

                if a == 1 or b == 1:
                    ans.append((a,b,T//2))
                else:
                    ans.append((a,b,0))

        print ("Yes")
        for i in ans:
            print (*i)

    else:
        if N % 2 == 0 or N == 2:
            print ("No")
        elif N == 3:
            ans = [(1,2,T),(2,3,0),(1,3,0)]
            print ("Yes")
            for i in ans:
                print (*i)

        elif T >= N:
            ans = []
            rem = N - T
            for b in range(1,N+1):
                for a in range(1,b):

                    if a == 1 or b == 1:
                        ans.append((a,b,rem//2 + 1))
                    else:
                        ans.append((a,b,1))

            print ("Yes")
            for i in ans:
                print (*i)
        else:
            print ("No")