last years potatoes

we still have a couple of sacks of last years potatoes although there kept quite well and I keep taking the chits  of them and pealing them a bit deeper than usual they still cook alright but I though i would ask are they are still Ok to eat as a boiled and chip potatoes still because we are not digging our new spuds yet

some are going a bit soft and the green ones I'm dumping anyway thanks yorkie for that reply