Shuzzles · ShudokuSunday, 4 October 2026
DiabolicalSwordfish, XYZ- and W-Wings, unique rectangles. Still pure logic — but only just.
28 clues · difficulty rating 544 · 62 logical stepsTechniques: Pointing Pair/Triple ×2, Box/Line Reduction, Hidden Pair, X-Wing, Simple Colouring, W-Wing ×2, Unique RectanglePinch points: 9 (moments with only one move available) · average choices per step 5.0
shuzzles.co.uk/shudoku/2026-10-04/diabolical/