⭐ Medium · 32 given numbers · ID medium-81
Medium Sudoku No. 81
A medium puzzle with exactly one solution. Techniques needed: naked single, hidden single, pointing pair, naked pair.
The sheet below is exactly what prints on one A4 or Letter page. Choose “Save as PDF” in the print dialog if you prefer a file.
Keyboard: arrow keys to move, 1–9 to fill, Backspace to erase, N to switch notes.
Solution (hidden until you want it)
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About this puzzle
Medium puzzles need at least one step beyond naked singles: hidden singles, pointing pairs, box/line reduction or naked pairs. Looking for a different challenge? Easy, Hard or Expert puzzles are on the printable Sudoku page.
Need a break from the numbers?
Try a medium riddle
Sudoku and riddles train the same muscle: spotting what must be true. Here are a few medium riddles with answers.