Shuzzles · ShudokuSaturday, 3 October 2026
DiabolicalSwordfish, XYZ- and W-Wings, unique rectangles. Still pure logic — but only just.
27 clues · difficulty rating 430 · 62 logical stepsTechniques: Pointing Pair/Triple ×3, Naked Pair ×2, X-Wing, W-Wing ×2Pinch points: 4 (moments with only one move available) · average choices per step 5.7
shuzzles.co.uk/shudoku/2026-10-03/diabolical/