Shuzzles · ShudokuThursday, 8 October 2026
DiabolicalSwordfish, XYZ- and W-Wings, unique rectangles. Still pure logic — but only just.
26 clues · difficulty rating 577 · 66 logical stepsTechniques: Pointing Pair/Triple ×2, Box/Line Reduction, Naked Pair, Hidden Pair, Simple Colouring, X-Wing, W-Wing ×3, Unique RectanglePinch points: 9 (moments with only one move available) · average choices per step 4.9
shuzzles.co.uk/shudoku/2026-10-08/diabolical/