When I was little I used to watch a nice SF series on TV. It was in the 90's, about 15 years ago. The format was similar to The Twilight Zone or The Outer Limits but I don't really think it was the case. They were on TV too, but in a different period and on different channels.
I remember the plots of some episodes:
The first one was about a leader of a terrorist or paramilitary organization who captured some hostages. He then proceeds to play a game of chess with one of the hostages, using humans as pieces: military men vs hostages. Each time a piece was taken, that person was taken from there and killed. One of the moves involves the sacrifice of a boy who is revealed to be still alive at the end of the game, a game that the hostage manages to win. I clearly remember the military leader/terrorist telling him something like: "Ï am a terrorist, not a monster"
The second one was about an old and very rich lady. She's kept alive by her doctor with some new, revolutionary treatment, but she's reduced to being simply a head. He tries to convince him to let her die, but he's opposed to it because we was making a fortune from the old lady's insurance. I don't remember how, but in the end the woman dies and the doctor has an accident and finds himself stuck in the same situation of being reduced a head and unable to die.
The third one is foggy... it was about a weird ride at a carnival, a sort of ferris-wheel that made people younger or older. If I recall correctly, a thief was using it to change his age and get away with crimes, but he somehow gets stuck in the wheel and gets really old and dies.
Any help would be really appreciated. Another thing I remember was me really enjoying the show. It was well done and with some really nice effects, it didn't look cheap so I'd like to be able to watch it again.
 It was definitely NOT The outer limits, the only episode here referencing "chess" is not like the one I saw.