Evil — Swordfish
Evil Sudoku #02
A hand-graded evil puzzle — 28 clues, roughly 10 minutes. Every puzzle here has exactly one solution, reachable by logic alone.
●Evil
Solved. Nicely done — want another?
What this puzzle needs
Solving this one by logic calls on 6 techniques, from the everyday to the demanding. Each links to a full guide:
One thing to look for
The turning point is a Swordfish — 5 forms a Swordfish on columns 1 & 6 & 7, locked into rows 3 & 7 & 9 — remove 5 from the rest of those rows.
Stuck? Let it teach you
Tap Hint once and the solver names the next logical move and the region it lives in — "hidden single in box 4", say. Tap it again to make the move. Nothing here ever needs a guess. Prefer to see the whole solution? Drop this grid into the step-by-step solver.