Arcforge Sudoku Deluxe

Sudoku Deluxe is hand-crafted Sudoku on a real-time 3D board of engraved tiles, with a coach that explains every step in plain words. SEVEN VARIANTS, EACH WITH ITS OWN SOLVER Classic 9x9, Mini 6x6, Diagonal, Windoku, Jigsaw, Killer and Thermo. Every puzzle in the library was generated by the app's own solver, proven to have exactly one solution, and graded by the techniques a person needs: from Full House and Hidden Singles up to X-Wing, Swordfish, XY-Wing, colouring, XY-chains and forcing chains. Six levels, Beginner to Master, and over 1,500 puzzles, plus Endless mode that re-dresses puzzles so they feel new. A COACH THAT TEACHES Tap Hint and the coach names the technique and where to look, then explains why it works with the cells highlighted on the board. It never guesses, and it points out a wrong number before anything else. Watch and Learn plays a puzzle for you one logical step at a time with a real Pause and a Think button. LEARN FROM BASICS TO EXPERT Twenty short lessons, each with a diagram taken from a real puzzle: rules, singles, pencil marks, locked candidates, pairs, triples, X-Wing, XY-Wing, Swordfish, colouring, chains, forcing chains, and the special logic of Killer cages and Thermometers. DAILY PUZZLE AND PROGRESS A new puzzle every day, the same for everyone, with a streak calendar. Stars for clean solves, best times, and 18 awards, all stored on your device. MADE TO BE COMFORTABLE Four board themes (Walnut and Ivory, Paper and Ink, Slate and Chalk, Midnight and Brass), colour-blind safe and high-contrast modes, large print, text zoom to 300% on every text screen, mistake checking you control, smart notes, undo and redo, portrait and landscape on phone and tablet, soft sound and haptic feedback. Free to play, with short ads between games. One optional in-app purchase, Remove ads, removes the ads for good. No account and no subscription; your progress stays on your device and it works offline (ads need a connection). Lessons, Watch and Learn, the rules and your stats are always free. Restore brings Remove ads back on a new device.

Now free to play with short ads. One optional purchase, Remove ads, removes them for good; if you already unlocked the game you stay ad-free. Stability and performance improvements.