▁there ▁are ▁restrictions ▁on ▁when ▁one ▁can ▁pick ▁up ▁the ▁disc ard ▁p ile . ▁( See ▁Pick ing ▁up ▁the ▁disc ard ▁p ile , ▁below ). ▁If ▁the ▁card ▁drawn ▁from ▁the ▁stock ▁is ▁a ▁red ▁three ▁the ▁player ▁must ▁table ▁it ▁immediately , ▁as ▁one ▁would ▁if ▁m eld ing , ▁and ▁draw ▁another ▁card . ▁ ▁The ▁player ▁may ▁then ▁make ▁as ▁many ▁legal ▁m eld s ▁as ▁they ▁wish ▁from ▁the ▁cards ▁in ▁their ▁hand . ▁A ▁turn ▁ends ▁when ▁the ▁player ▁disc ards ▁one ▁card ▁from ▁their ▁hand ▁to ▁the ▁top ▁of ▁the ▁disc ard ▁p ile . ▁No ▁player ▁may ▁" undo " ▁a ▁m eld ▁or ▁laid ▁card , ▁or ▁change ▁their ▁mind ▁after ▁drawing ▁a ▁card ▁from ▁the ▁deck . ▁ ▁M eld s ▁and ▁Can ast as ▁Each ▁player / team ▁keeps ▁separate ▁m eld s ▁of ▁the ▁various ▁ranks ▁of ▁cards . ▁A ▁player ▁may ▁never ▁play ▁to ▁an ▁oppon ent ' s ▁m eld . ▁A ▁legal ▁m eld ▁consists ▁of ▁at ▁least ▁three ▁cards ▁of ▁the ▁same ▁rank . ▁Su its ▁are ▁irrelevant ▁except ▁that ▁black ▁th rees ▁are ▁treated ▁differently ▁from ▁red ▁th rees . ▁Wild ▁cards ▁can ▁be ▁used ▁as ▁any ▁rank ▁except ▁for ▁th rees . ▁Th rees ▁may ▁never ▁be ▁m eld ed ▁in ▁ordinary ▁play , ▁although ▁ 3 ▁or ▁ 4 ▁black ▁th rees ▁may ▁be ▁m eld ed ▁last ▁in ▁the ▁process ▁of ▁a ▁player ▁going ▁out . ▁ ▁A ▁m eld ▁must