The Ultimate Test of Skill

Think you’ve mastered Sudoku? These extreme puzzles in Master Sudoku are for true pros. Minimal clues, complex strategies, and advanced solving techniques will push you to your mental limits. Can you beat them all?

These puzzles are part of the ‘100 Day Sudoku Challenge’ originally published on our social media.

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Latest Social Media Puzzles
Puzzles from our social channels — play them here!
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Day 4
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Day 8
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Day 12
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Day 16
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Day 20
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Day 24
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Day 28
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Day 32
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Day 36
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Day 40
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Day 44
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Day 48
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Day 52
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Day 56
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Day 60
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Day 64
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Day 68
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Day 72
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Day 76
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Day 80
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Day 84
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Day 88
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Day 92
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Day 96
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Day 100
Time for a breather?
Try Easy, Medium, or Hard.
Levels rotate — day numbers may skip.
Practice with Sample Puzzles
Permanent puzzles you can play any time.
Sample
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Sample
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Enjoying this level?

Sudoku Quest – Master is a printed Sudoku book with expert-level puzzles designed for experienced solvers — offering the same demanding challenge you’re playing here, along with optional QR-code hints for extra support.

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No pressure — enjoy the online puzzles anytime.

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