Easy sudoku
A printable easy sudoku with its answer key: 45 numbers are given, and the puzzle has exactly one solution. Press New puzzle for another at the same level.
Hard sudoku
A printable hard sudoku with its answer key: 27 numbers are given, and the puzzle has exactly one solution. Press New puzzle for another at the same level.
215.9 mm · 8.5 in279.4 mm
2 pages · US Letter · Portrait
US Letter · 2 pages · with answer key
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4 ready-to-print PDFs
How the levels are set
On this site the level is the number of given numbers: easy gives 45, medium 35 and hard 27. Fewer givens usually take longer to solve, but the solving methods a puzzle needs can differ between two puzzles of the same level. Every puzzle is checked to have exactly one solution.
Print a puzzle pack
The ready files contain ten different puzzles, followed by ten numbered answer keys. Print pages 1 to 10 for the puzzles, and keep pages 11 to 20 for the answers.
Related printables 2
Medium sudoku
A printable medium sudoku with its answer key: 35 numbers are given, and the puzzle has exactly one solution. Press New puzzle for another at the same level.
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Print and assemble
Use the same paper size in the PDF and printer settings. Choose Actual size or 100%. Print a sample before making copies.