One per page
An expert grid needs full candidate marks in most cells, so print a single puzzle per page. At 150 mm across, each cell is about 16 mm — enough for a tidy three-by-three arrangement of small digits.
What you will need
At least one advanced pattern: an X-Wing, an XY-Wing, or a Swordfish. If you have not met them, read the guides first — hunting for a pattern you cannot recognise is not a satisfying way to spend forty minutes.
These grids are still logical puzzles. Every one was solved by technique before it was published, so a complete path exists on the page in front of you.
Why the layout matters more here
Every advanced pattern is defined by where a candidate can and cannot go across the whole board, which means you need every candidate written down and readable. Cramped marks are the single most common reason an expert puzzle on paper ends in frustration: the pattern was there, but the grid was too small to see it.
A printing setup that works
- One puzzle per page, always.
- A4 or Letter in portrait, margins left at the default.
- A sharp pencil, ideally 0.5 mm mechanical.
- A second copy of the same sheet, in case the first one becomes unreadable.
If you would rather have the bookkeeping done for you, play expert puzzles on screen — the notes tool clears candidates automatically when you place a digit, which removes the most common source of error.
Common questions
Are these the hardest puzzles on the site?
Yes. Expert is the top band, defined by a solving path that requires an advanced pattern.
How many should I print at once?
One per page. A pack of six expert puzzles is several hours of solving.
Do they ever need guessing?
No — every published grid has a complete chain of logical moves from start to finish.
Should I print the answers for expert puzzles?
Print them, but keep them apart from the puzzles. The temptation to check a single cell is strong, and one glance ends the puzzle.