Medium to Hard Sudoku Books for Adults: 200 Medium and 200 Hard Sudokus for Adults with Experience

This is probably a good book if you are new to Sudoku but for a seasoned puzzler the grids would be too easy. The book is clearly printed and set out in a nice format. There is plenty of space on each page for notes and the large print makes it easy to make out the grids if your eyesight is not 20/20. That said it is a great confidence booster as you will find yourself flying through the grids in no time at all.

Medium are very solvable , the hard are as expected but not impossibly difficult

The product is basically good, it would be better if it built up fasster. is fewer easy up to more extreme.

if you like doing sudoku, you will like this.

I would describe these puzzles as easy to medium, not hard. I am disappointed by that and also find the book too large. It cannot be put in a handbag for travelling and it does not stay open, as another reviewer says.

I use it by doing two medium and one hard. It works well for me.The only criticism is the size of the book. It is too wide and two tall,it dosent fit aesilly into a bag.

First time I've ordered a Sudoku book online. Ones bought over the counter were small and compact. Whilst my old eyes like the bigger layout, the book itself doesn't close properly;has to be weighted down when not in use. Contrarily, when using it, it doesn't stay flat so is really awkward to use. A ringed binder type would be an improvement.

Too easy for description 'medium to hard'