The complete course
The Sudoku Learner's Guide
A complete course in seeing the logic. Learn the rules, understand the techniques, and build your confidence one well-explained step at a time.
Available now
The Sudoku Learner's Library
Available nowStart Here: Hard Sudoku with Visual Hints
See the Pattern. Use It. Find It Again.
Take on hard Sudoku with a little direction when you need it. Hints point you towards your next move while leaving the discovery to you.
A good fit for
Solvers moving into harder puzzles who would like guidance when they get stuck.
Find your copy.
Choose your Amazon marketplace.
As an Amazon Associate I earn from qualifying purchases.
- ISBN
- 9798175487368
- ASIN
- B0HKSJXRGT
A look inside
A place to look. A pattern to find.
The opening two puzzles show how shaded cells give you a useful starting point.
Read the two-page sample (PDF) Choose a page to view it full size.
Read the example in text
In Part I, all the cells of the first useful pattern are shaded. Work through the opening singles, add your candidate notes, and see what connects the shaded cells.
The first puzzle introduces an X-Wing; the second introduces a Naked Triple. Use the pattern, keep solving, and look for another chance to use the same technique without the visual hint.
More ways to learn.
Explore the library
Discovery
25 Days of Christmas Sudoku
A Sudoku Advent calendar for December 2026. Solve one moderate puzzle each day from December 1 to Christmas Day, then use your answers to reveal another part of a festive drawing.
Available now
Practice!
Practice! X-Wing Sudoku
Learn to spot X-Wing patterns through progressive, deliberate practice. Turn a technique you understand into one you can recognise.
Available now