3. Mild cognitive impairment or mild dementia based on an existing diagnosis or study screening procedures.
4. Has an informant and a puzzle creator who know the participant and are willing to participate in the study; the same person may serve in both roles.
You may not be if
1. Severe uncorrected visual or hearing impairment that would prevent puzzle use.
2. Severe motor impairment that would prevent puzzle use.
3. Concurrent participation in a similar program or Alzheimer's disease intervention study.
4. Current hospice care or terminal illness.
5. Plans to relocate within three months after the baseline assessment.
6. History of a serious mental illness, such as bipolar disorder or schizophrenia, that would interfere with study participation.
7. Unable to provide informed consent and no legally authorized representative is available
