Extremely Hard Sudoku for Seniors: 200 Insane Sudoku Puzzles to Keep Your Brain Running, Improve Focus and Memory, and Reduce the Risk of Alzheimer's Disease

by Senior Press

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  • ISBN10 165972029X
  • ISBN13 9781659720297
  • Publish Date 12 January 2020
  • Publish Status Active
  • Imprint Independently Published
  • Format Paperback (US Trade)
  • Pages 254
  • Language English