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Play Level 19 Sudoku – Ultimate Logic Test

Level 19 is nearly the toughest Sudoku possible. Every number must be earned through meticulous strategy.

Find Your Ideal Sudoku Challenge

Expert - Gold Level 19 (18 clues)

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

Level 1
36 clues Level 2
35 clues Level 3
34 clues Level 4
33 clues Level 5
32 clues Level 6
31 clues

Perfect for beginners, these easy Sudoku puzzles offer a gentle challenge with more clues.

Medium Sudoku

Level 7
30 clues Level 8
29 clues

Ideal for intermediate players seeking a balanced challenge.

Hard Sudoku

Level 9
28 clues Level 10
27 clues

Great for advanced players, these puzzles reduce the clues further for deeper thinking.

Expert Sudoku

Level 11
26 clues Level 12
25 clues

For seasoned solvers. Requires advanced strategy and logical precision.

Expert – Silver

Level 13
24 clues Level 14
23 clues Level 15
22 clues Level 16
21 clues Level 17
20 clues

Minimal clues for a real mental workout — designed for puzzle masters.

Expert – Gold

Level 18
19 clues Level 19
18 clues Level 20
17 clues

The ultimate test. Only for elite Sudoku solvers. Every move counts.

Level 19 FAQs

What makes Level 19 challenging?
It provides 18 starting clues, offering a serious challenge.
How many Level 19 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.