Shuzzles · ShudokuWednesday, 7 October 2026
DiabolicalSwordfish, XYZ- and W-Wings, unique rectangles. Still pure logic — but only just.
26 clues · difficulty rating 430 · 58 logical stepsTechniques: Simple Colouring, Y-Wing, W-WingPinch points: 2 (moments with only one move available) · average choices per step 6.0
shuzzles.co.uk/shudoku/2026-10-07/diabolical/