sudoku.coach

Sudoku.coach puts classic grids, lessons, practice drills, and a step-by-step solver in one web app. It suits solvers who want to understand the next move, not merely clear another grid.

What is sudoku.coach?

The home page splits the experience into play, campaign, learning, solver, practice, construction, and print routes. That makes this less like a single daily-puzzle stop and more like a workbench for building a Sudoku habit. The learning index runs from rules and notation into techniques with wonderfully improbable names, while the solver is there for moments when a grid has become a very quiet argument with yourself.

What you can do there

• Solve Sudoku puzzles
• Learn named solving techniques
• Use a step-by-step solver

Why we picked it

It gives the puzzle a useful afterlife: a stuck grid can lead into an explanation, a practice drill, or the next lesson instead of a shrug and a reset. The range of named learning sections makes the site feel designed for gradual improvement.

How to get the most from it

Start with a puzzle at a comfortable difficulty, then use the campaign or learning pages when a technique feels mysterious. Save the step-by-step solver for a specific sticking point so the grid still gets to teach you something.

Good to know

JavaScript is required for the web app. The home page presents cookie choices, and the official privacy policy describes cookies and analytics processing; check that policy before settling in if those settings matter to you.

Who made it, and when?

Jan Feldmann is the credited creator or organization.