LinkedIn Sudoku
Fill the 6×6 grid so every row, column and 3×2 box contains 1 through 6 exactly once.
About LinkedIn Sudoku 6×6
LinkedIn Sudoku is a compact, 6×6 take on the classic puzzle. The board is split into six 3-wide × 2-tall boxes; you must fill every cell with a digit from 1 to 6 so every row, every column and every box contains each digit exactly once. The fewer numbers given up front, the harder the puzzle.
On Ludingo we ship 200 easy, 200 medium and 200 hard hand-curated Sudoku 6×6 puzzles — no daily limit, no LinkedIn account needed, no install. Each puzzle is uniquely numbered so you can share a link and race the same board with friends.
How to play
- Tap a cell to select it, then tap a digit 1–6 on the number pad to fill it.
- Every row must contain each of 1, 2, 3, 4, 5, 6 exactly once.
- Every column must contain each of 1, 2, 3, 4, 5, 6 exactly once.
- Every 3-wide × 2-tall box (outlined by the thick lines) must also contain each digit exactly once.
Questions about LinkedIn Sudoku 6×6
What are the rules of 6×6 Sudoku?
Fill the 6×6 grid with digits 1 to 6 so each row, column, and 3×2 box contains every digit exactly once. The given clues are locked; only the empty cells can be filled. Every puzzle has exactly one valid solution.
How does difficulty work?
Difficulty is set by how many cells are pre-filled. Easy puzzles ship with roughly 24 clues, medium with about 18, and hard with around 12 — the fewer the clues, the more deduction is required to solve.
Do I need a LinkedIn account?
No. Sudoku on Ludingo runs entirely in your browser — no LinkedIn login, no install, no email. Sign-in only adds persistent stats and cross-device sync.
How is puzzle numbering shared?
Every puzzle has a stable ID like `easy_42` or `hard_3` that's the same on every device. Share the URL with a friend and they'll get the exact same board — perfect for comparing solve times.