Smoresoft Sudoku Puzzle Packs

Download and play these high-quality puzzles for Smoresoft Sudoku.

These puzzles are rated by Smoresoft and are guaranteed to have a unique solution. They can be solved using logic only (no guessing required).

Beginner (100 puzzles)
Puzzles can be solved using the crosshatching technique.
Easy (50 puzzles)
Puzzles contain naked singles or hidden singles.
Moderate (50 puzzles)
Puzzles contain naked sets or box-line reductions.
Difficult (50 puzzles)
Puzzles contain hidden sets or X-Wings.
Fiendish (50 puzzles)
Puzzles contain remote pairs, Swordfish, Jellyfish, XY-Wing, or XYZ-Wings.

Here you'll find other great puzzles collected from sources around the Internet.

Ulteriors Collection (17 puzzles) from the Sudoku Players' Forums
A collection of interesting puzzles that are fun to solve without pencil marks.
Inferiors Collection (100 puzzles) from the Sudoku Players' Forums
A collection of puzzles that can be solved with singles, but require many steps.
Superiors Collection (100 puzzles) from the Sudoku Players' Forums
A collection of puzzles with difficulty ratings similar to the Sunday Times Superior puzzles. The most difficult technique required is the X-Wing.
Superiors (Second Collection) (33 puzzles) from the Sudoku Players' Forums
A collection of puzzles similar in difficulty to the first Superiors collection, with some additional constraints to make them easier to solve.
Bicycle Collection (18 puzzles) from the Sudoku Players' Forums
A collection of puzzles that are naturally solved with one or more bidirectional cycles.
High Scores Collection (74 puzzles) from the Sudoku Players' Forums
The most difficult puzzle for each of the solving techniques, in increasing level of difficulty for the technique.
Extreme Puzzles Collection (100 puzzles) from the Sudoku Players' Forums
A collection of some of the most difficult puzzles you'll find anywhere.

Additional puzzle packs contributed by Smoresoft Sudoku enthusiasts are available for download in the Smoresoft Forums!

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