Hardest Sudoku — SE grade 11
SE grade 10.0 to 12.0
By The Hardest Sudoku Team · Last updated
TL;DR
Monster territory. These puzzles have no easy entry point and demand long forcing chains end to end — the home of AI Escargot, Golden Nugget and Platinum Blonde.
What is a SE grade 11 puzzle like?
Monster territory. These puzzles have no easy entry point and demand long forcing chains end to end — the home of AI Escargot, Golden Nugget and Platinum Blonde.
Which techniques does this band need?
Puzzles in this band typically require:
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 →