Play Level 18 Sudoku – Extreme Challenge
Level 18 is not for the faint-hearted. It requires expert intuition and methodical logic with minimal help.
Find Your Ideal Sudoku Challenge
Level 18 – 19 clues
Here are the top 5 fastest players for today's Sudoku Level 18 (with 19 clues). Each record includes the nickname, country, completion time, and puzzle number.
| Rank | Nickname | Country | Time | Puzzle |
|---|---|---|---|---|
| 1 | Guest #27583 |
|
00:04:30 | #384496 |
| 2 | Guest #27524 |
|
00:06:12 | #230659 |
| 3 | Guest #27546 |
|
00:06:47 | #510302 |
| 4 | Guest #27556 |
|
00:07:40 | #425485 |
| 5 | Guest #27530 |
|
00:07:57 | #868513 |
Gold Tier: The Ultimate Sudoku Test
- Only 19–17 clues — nearly world-record minimal
- Every cell demands logic, no assumptions allowed
- Elite-level handcrafted puzzles for pros
- Track your time, print puzzles, and share results
- Challenge yourself with some of the hardest Sudoku online
Select Your Challenge Level
Choose a Sudoku difficulty based on clue count. Levels are grouped by skill — from easy to expert gold.
Easy Sudoku
Perfect for beginners, these easy Sudoku puzzles offer a gentle challenge with more clues.
Medium Sudoku
Ideal for intermediate players seeking a balanced challenge.
Hard Sudoku
Great for advanced players, these puzzles reduce the clues further for deeper thinking.
Expert Sudoku
For seasoned solvers. Requires advanced strategy and logical precision.
Expert – Silver
Minimal clues for a real mental workout — designed for puzzle masters.
Expert – Gold
The ultimate test. Only for elite Sudoku solvers. Every move counts.
Level 18 FAQs
- What makes Level 18 challenging?
- It provides 19 starting clues, offering a serious challenge.
- How many Level 18 puzzles are available?
- Thousands. Each session randomly selects one from our verified collection.
- Do I need an account to play?
- No account or download needed — simply click and solve.