Shuzzles · ShudokuThursday, 1 October 2026
DiabolicalSwordfish, XYZ- and W-Wings, unique rectangles. Still pure logic — but only just.
27 clues · difficulty rating 430 · 63 logical stepsTechniques: Pointing Pair/Triple ×5, Naked Pair, Box/Line Reduction, X-Wing, Unique RectanglePinch points: 3 (moments with only one move available) · average choices per step 7.2
shuzzles.co.uk/shudoku/2026-10-01/diabolical/