Comparison
LinkedIn Mini Sudoku vs Coronet's Mini Sudoku
LinkedIn's Mini Sudoku is a compact 6×6 number-placement board. Coronet Arcade runs an independent Mini Sudoku daily on the same rules, free in any browser.
What's the same
Both fill the grid so each row, column, and box contains every digit once. The 6×6 size with 2×3 boxes keeps the deductions honest while cutting the solve to a few minutes.
How Mini Sudoku differs
Coronet's Mini Sudoku also offers 4×4 for a quick warm-up and classic 9×9 in unlimited practice, plus a daily archive. It runs in the browser with no login, alongside eight other puzzles.
Verdict
If the LinkedIn mini is your commute puzzle, Coronet's has the same 6×6 daily plus 4×4 and 9×9 to grow into.