Hardest Sudoku — SE grade 1.2–2.2
SE grade 1.2 to 2.2
By The Hardest Sudoku Team · Last updated
TL;DR
The gentlest puzzles. Solvable end to end by spotting naked and hidden singles — no candidate bookkeeping required.
What is a SE grade 1.2–2.2 puzzle like?
The gentlest puzzles. Solvable end to end by spotting naked and hidden singles — no candidate bookkeeping required.
Which techniques does this band need?
Puzzles in this band typically require:
What this band actually requires
We publish 72 puzzles in this band, and a full logical solve takes 56 steps on average. These are measured from our own solver, not estimated.
- · Naked Single — needed by 72 of 72
- · Hidden Single — needed by 71 of 72
- · Claiming (Locked Candidates) — needed by 8 of 72
- · Pointing (Locked Candidates) — needed by 20 of 72
- · Naked Pair — needed by 8 of 72
Technique counts come from running our step-by-step solver over every published puzzle in the band.
Puzzles in this band
Where does this sit on the scale?
See the full ladder on the SE grade page. The hardest puzzles — the monsters — live at the top of the scale; meet them on What is the hardest Sudoku?
Play puzzles at this grade →