Sudoku XL

Sudoku up to 16×16, solvable by logic alone.

Download on the App Store Free · iPhone and iPad · Works offline

Classic 4×4 and 9×9 boards, plus the giant 16×16 grids almost no other app offers. Every puzzle is verified against a technique solver before it ships, so no puzzle ever needs a guess. Works completely offline, with no account.

• Six difficulties, from Easy through to Master
• A 158-level journey, a daily challenge, trophies and statistics
• Killer Sudoku and X-Sudoku
• Printable PDF packs in A4 or US Letter, 1, 2 or 4 puzzles per sheet
• Free technique lessons with worked diagrams