What are some good puzzle games for a senior citizen who has early signs of dementia?

Puzzles and puzzle-like games make a fabulous gift for those with dementia and early, middle, and late-stage Alzheimer’s, giving mental stimulation to patients. For such a group of people, puzzles provide convenience and potential ease for some disease symptoms.
Whether they are done as a group or individually, these activities can significantly distract patients. Alzheimer’s disease weakens the brain; patients and loved ones require cognitive stimulation to maintain the brain engaged and busy. Those in the middle stages of dementia or memory loss may benefit from a 36-piece puzzle or a 60-piece puzzle.
In contrast, those in more advanced phases or with limited hand coordination may benefit from an easy wooden puzzle or a good puzzle that makes sounds for extra cognitive stimulation.