Shuzzles · ShudokuMonday, 28 September 2026
DiabolicalSwordfish, XYZ- and W-Wings, unique rectangles. Still pure logic — but only just.
28 clues · difficulty rating 430 · 60 logical stepsTechniques: Pointing Pair/Triple ×3, Box/Line Reduction ×2, Naked Pair, Unique RectanglePinch points: 4 (moments with only one move available) · average choices per step 8.3
shuzzles.co.uk/shudoku/2026-09-28/diabolical/