John Rob's Blog

Goodreads giveaway for Infinite Sudoku, Christmas Edition

Enter the Goodreads giveaway for a chance to win a copy of Infinite Sudoku, christmas edition. The book contains a collection of 2850 sudoku puzzles in various levels of difficulty. Each puzzle has a unique solution. All puzzles can be solved using logic, no guessing required.

The giveaway starts on December 18th and ends on December 26th.

Download for free the kindle version of “499 Quick Sudoku” on December 25th and December 26th.

Goodreads giveaway for 299 Sudoku Mix.


Kindle version free.

Enter the Goodreads giveaway for a chance to win a copy of 299 Sudoku Mix. The giveaway starts on June 5th and ends on June 14th.

Download for free the kindle version of the puzzles on weekends (June 5,6 and 13,14).

…99 Sudoku Series

100 to 500 sudoku puzzles.

Strategic Sudoku

Sudoku puzzles graded by strategies.

Large Print Sudoku

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Goodreads reviews for 100 Large Print Sudoku

Reviews from Goodreads.com

The kindle edition of the book 299 Sudoku Mix will be available for free on Friday 8th May. Set your alarm and grab a copy here!

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Goodreads Book Giveaway







399 Easy Sudoku



by John Rob

Giveaway ends April 30, 2015.

See the giveaway details

at Goodreads.

Enter to Win

100 Large print sudoku is out available on amazon.

100 Large Print Sudoku

The kindle edition of the book 199 Hard Sudoku will be available for free on Sunday 19th April. Set your alarm and grab a copy here!

Solutions for the book 499 Quick Sudoku.

Solutions for the book 99 Extremely Hard Sudoku.

99 Extremely Hard Sudoku
99 Extremely Hard Sudoku

Solutions here

199 Hard Sudoku
199 Hard Sudoku
399 Easy Sudoku
399 Easy Sudoku
499 Quick Sudoku
499 Quick Sudoku

Solutions here