Puzzle Fuel
The Daily Fuel · Diabolical

Today, in Diabolical.

Pick how you'd like to solve it. Take the on-screen version with hint engine and pencil marks, or take the printed sheet for the train. Same puzzle either way.

BeginnerEasyMediumHardExpertDiabolical
▶ Play onlinePast editions →
PREMIUM SUDOKUPUZZLE FUELThe Daily Fuel.TUE · AUG 18, 2026EASYMEDIUMHARDEXPERT● DIABOLICAL53736352851931668285675449SOLVE · REFUEL · REPEATpuzzlefuel.com85

Edition № 85 · TUE · AUG 18, 2026 · next edition tomorrow morning

🔒 Archive · Unlocks at 2,500 fuel cells
Every past Sudoku edition →
Earn fuel cells by solving puzzles across the site. The archive opens at 2,500 lifetime cells and stays open forever.
0
2,500 to go