Sudoku Variants
Su Doku Variations
| Tridoku: triangular sudoku variant for Kindle. $1.99. Active content game. |
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| Jigsaw Sudoku: very twisted puzzles; for Kindle. $1.99. Active content game. |
On this page we show a variety of Sudoku puzzles on a daily basis. The focus will be on Jigsaw Sudoku Outside Sudoku and TriDoku, but there will also be consecutive, non-consecutive, odd/even, hyper, greater/less than and other Sudoku variants.
We don’t post Killer Sudoku puzzles here – there is a special Daily Killer Su Doku page dedicated for them.
Make sure to also check the Main page of this site, because that’s where occasionally other puzzles are posted: Kakuro (Cross Sums), CalcuDoku, Overlapping Sudoku, Picross (aka Hanjie, Griddlers, Nonograms).
Current puzzle: Friday, Feb 03, 2012
Difficulty: BRAIN
(click to download or right-click to save the image)![]() |
Instructions and rules for Sudoku variants
1. All standard Sudoku rules apply.
2. If you see an “X” across the puzzle (diagonals) it means that numbers cannot be repeated on those diagonals.
3. In “Hyper Sudoku (Windoku)” puzzles, there are 4 extra “nonets”, marked in light grey. All 4 of them must also contain all numbers 1-9.
4. In Jigsaw Sudoku puzzles (aka irregular boxes/nonets), the nonets have been transformed from usual 3×3 squares to “jigsaw” nonets. The usual 3×3 boxes do not exist!
5. Jigsaw Windoku puzzles are a mixture of the two puzzle types explained above.
6. Here are the rules and instructions for Sudoku Straights puzzles.
7. Here are the rules and instructions for Outside Sudoku puzzles.
8. Difficulty levels in increasing order: EASY – COOL – THINKER – BRAIN – IQ – INSANE
Missed a puzle? Find it in the archive!
Enjoy!













January 4th, 2010 at 11:57 am
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January 27th, 2010 at 12:27 am
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September 12th, 2011 at 2:15 am
[...] and you can get a Hyper or Jigsaw or Consecutive or Non-consecutive sudoku puzzle every day on the Daily Sudoku page. Comments [...]
September 12th, 2011 at 2:15 am
[...] Variants — djape @ 8:39 pm Well, it’ time to revive the “Daily Sudoku” [...]
September 12th, 2011 at 2:15 am
[...] will be more Jigsaw Sudoku puzzles on the Daily Sudoku page. They will be accompanied by the Sudoku Straights puzzles, which is something new, but I think [...]
September 12th, 2011 at 2:16 am
[...] UPDATE: A new “Sudoku Straights” puzzle will be shown every Friday on the Sudoku page. [...]
September 12th, 2011 at 3:57 am
[...] contains Sudoku straights puzzles, which I post every Friday on the Daily Sudoku [...]
September 12th, 2011 at 4:19 am
[...] Sudoku Variants [...]
September 12th, 2011 at 4:20 am
[...] Sudoku Variants [...]
September 18th, 2011 at 2:47 am
[...] Daily Sudoku variation puzzles [...]
December 23rd, 2011 at 10:48 am
I receive the emails with the puzzles. I enjoy doing them but can we have the solved puzzle also? When I am doing one I never done before it helps me to discover my mistakes when I get stuck. Thanks.
January 3rd, 2012 at 4:49 pm
More Tridoku please!
January 5th, 2012 at 6:26 am
Clare, I will take your suggestion into consideration and make sure that there will be more daily Tridoku puzzles in 2012!
January 7th, 2012 at 5:45 am
I don’t understand what this is . . . it has 13 in it ; two ’13′s in the same line.. is it simply a mistake….HELP….and Happy New Year
January 7th, 2012 at 6:25 am
Rowland, it’s a HITORI puzzle. See the rules here: http://www.djape.net/sudoku/wp/2009/02/07/my-first-hitori-puzzle-and-a-big-one-too/