M?t môi tr??ng h?t s?c ??c h?i c?n th? l?c và trí l?c c?c l?n. Nh?ng ng??i t?nh táo c? cu?c ch?i m?i là nh?ng ng??i có th?ng cu?c sau cùng.Double Collection: six or more playing cards forming a consecutive sequence of pairs. Double Sequence is a Exclusive card set.Th?i gian thi ??u t? fifteen – 60 phút cho m?i ng??i ch?i, có th? ???c t?n