Shuzzles · ShudokuWednesday, 23 September 2026
DiabolicalSwordfish, XYZ- and W-Wings, unique rectangles. Still pure logic — but only just.
28 clues · difficulty rating 430 · 57 logical stepsTechniques: Pointing Pair/Triple, Hidden Pair, X-Wing, W-WingPinch points: 8 (moments with only one move available) · average choices per step 4.2
shuzzles.co.uk/shudoku/2026-09-23/diabolical/