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←, →, ↑, ↓, right-click = move
n, double-click = set cell to n
space, del = unset a number
-n = eliminate n as a candidate
+n = add n as a candidate
shift-n = highlight candidate n
F = set cell to highlight num
U = undo last move
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123 456 789

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About Sudoku Slam

Site design, code, puzzles all © 2006, 2025 AJ Shankar and Bill McCloskey.

Thanks to all the Slammers who submitted feedback to suggest new features, expose and eliminate bugs, and broaden the site's useability.

Icons from the Tango Icon Gallery. Thanks, Tango.

Favicon created by Matthew Sanchez.

If you'd like to syndicate puzzles, the solver, or have any other "meta"-questions, email us at sumo@sudokuslam.com.
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Note: In offline mode, many advanced smart hints and saving/loading puzzles will not work. Also, if you close the browser window, all downloaded puzzles will be lost!
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Then, click on the link below to load it (note that you will exit your current puzzle!), and then bookmark it (Ctrl-D). Visit that bookmark from now on!


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