Sudoku Mine - Hard

Play free Sudoku Mine Hard online or download printable Sudoku Mine Hard (up to 4 puzzles per page) to solve with pen and paper.

Sudoku Puzzle #46

Not hard puzzle, but how offten do you guys keep track of pentuples or higher, I noticed mine in box9 and just wonder on other people's approach(solved, just hope to get some

Live Sudoku - The Daily Sudoku

Everything Sudoku - Bailey's Puzzles

Ludii Portal

Rossini Sudoku - Hard

Sudoku 5,619 hard, Life and style

What are the points to keep in mind to solve difficult Sudoku puzzles? - Quora

Sudoku Problem Series 120 : Lockout Lines

Sudoku 3,142 hard, Life and style

Sudoku Mine - 200 Easy to Very Hard Puzzles Book 4: Buy Sudoku Mine - 200 Easy to Very Hard Puzzles Book 4 by Parker Liam at Low Price in India

Samurai Sudoku - Hard

Another crazy puzzle from s2. This one was so hard I had to resort to trifurcation chains grid wide. : r/sudoku