Hard Sudoku, Level 4: a page from the printable

Hard Sudoku, Level 4: another page from the printable

Puzzles · Large print

Hard Sudoku, Level 4

Hard sudoku in large print: 60 challenging puzzles, our emptiest grids, still never a guess, with a hint page that teaches the one advanced move you will need.

See price on Etsy

Instant PDF download on Etsy. You print it at home; nothing is mailed.

Puzzles: 60
Level: Challenging, level 4 of 4, the top of our shelf
Digits: 26 pt, one grid to a page
Solutions: all 60, in a separate file
Print: US Letter and A4, black ink

At the table

Page 3 stops on a real position from puzzle C-1 and shows the move: “every square that could still take the 7 stands in row 2”, so the 7 comes off the rest of that row. Page 4 hands you C-1 to finish.

What you get4 PDF files

Challenging puzzles, US Letter and A464 pages each, with the When You Are Stuck hint page before puzzle 1
Challenging solutions, US Letter and A416 pages each

Why it works

Hard should mean you have to think, not that you have to gamble. The pack states its own rule: “every grid is proven to open to the moves this pack teaches”. Our software generates each grid, confirms it has exactly one solution, and grades it by the techniques it needs; these 60 need the one taught on the hint page. They run from puzzle 1 up to puzzle 60, the hardest.

Made for: The solver for whom medium grids have stopped being a contest, and who still wants digits large enough to pencil candidates around.