Shuzzles · ShudokuThursday, 24 September 2026
DiabolicalSwordfish, XYZ- and W-Wings, unique rectangles. Still pure logic — but only just.
28 clues · difficulty rating 442 · 59 logical stepsTechniques: Pointing Pair/Triple ×2, Y-Wing ×2, Simple Colouring, XYZ-WingPinch points: 11 (moments with only one move available) · average choices per step 5.4
shuzzles.co.uk/shudoku/2026-09-24/diabolical/