Shuzzles · ShudokuFriday, 11 September 2026
DiabolicalSwordfish, XYZ- and W-Wings, unique rectangles. Still pure logic — but only just.
26 clues · difficulty rating 441 · 62 logical stepsTechniques: Naked Pair ×3, Pointing Pair/Triple, Box/Line Reduction, Y-Wing, Unique RectanglePinch points: 8 (moments with only one move available) · average choices per step 3.8
shuzzles.co.uk/shudoku/2026-09-11/diabolical/