#include <stdio.h>

int main()
{
	int i, j, k, q, Q, N, T, w[10] = {};
	scanf("%d", &Q);
	for (q = 1; q <= Q; q++) {
		scanf("%d %d", &N, &T);
		if (T % 2 != 0 && (T < N || N % 2 == 0)) {
			if (N % 2 != 0 && T == N - 2) {
				printf("Yes\n");
				for (j = 2; j <= N; j++) printf("1 %d 0\n", j);
				for (i = 2; i <= N; i++) for (j = i + 1; j <= N; j++) printf("%d %d 1\n", i, j);
				continue;
			}
			printf("No\n");
			continue;
		} else printf("Yes\n");
		if (T % 2 == 0) {
			k = 0;
			w[1] = T / 2;
		} else {
			k = 1;
			w[1] = (T - N) / 2;
		}
		for (i = 1; i <= N; i++) for (j = i + 1; j <= N; j++) printf("%d %d %d\n", i, j, k + w[i] + w[j]);
	}
	fflush(stdout);
	return 0;
}