![Fun for the Brain Sudoku 100 Hard PUZZLES Large... [Large Print] 1707892229 Book Cover](https://i.thriftbooks.com/api/imagehandler/l/6B17A28D3E5E6A0B841920CBE3EEBDB62193891D.jpeg)
Fun for the Brain Sudoku 100 Hard Puzzles with Solutions and large print will challenge and sharpen deductive reasoning and problem-solving thinking skills. Want a different challenge level? There are three in the Fun for the Brain Series which include Book #1- Easy, Book #2-...