mod = 1000000007
eps = 10**-9


def main():
    import sys
    input = sys.stdin.readline

    for _ in range(int(input())):
        N, T = map(int, input().split())
        if T & 2 == 0:
            print("Yes")
            for i in range(1, N+1):
                for j in range(i+1, N+1):
                    if i == 1:
                        print(i, j, T // 2)
                    else:
                        print(i, j, 0)
        else:
            if N <= 3:
                print("Yes")
                for i in range(1, N+1):
                    for j in range(i+1, N+1):
                        if i == 1 and j == 2:
                            print(i, j, T)
                        else:
                            print(i, j, 0)
            elif N & 1:
                if T >= N:
                    T -= N
                    print("Yes")
                    for i in range(1, N + 1):
                        for j in range(i + 1, N + 1):
                            if i == 1:
                                print(i, j, T // 2 + 1)
                            else:
                                print(i, j, 1)
                else:
                    print("No")
            else:
                print("No")


if __name__ == '__main__':
    main()