Home > Games > Puzzles > Brain Teasers > Sudoku > Variants
This category is for sites about variations of traditional Sudoku. Such variations may include Word Doku (using letters that often spell words), deviations from the 9×9 grid with the 3×3 regions (for example: non-square regions, larger/smaller grids, combined boards, and so on) or any other variation.
http://www.calcudoku.org/hardest_logic_number_puzzles/
A list of the hardest known puzzles for Sudoku and several Sudoku variants.
http://www.puzzlemix.com/
Site with many Sudoku variants, all playable online.
http://www.funwithpuzzles.com/
Contain lots of Sudoku as well as logical and fun puzzles. Also offers many online games.
http://sudokugeant.cabanova.fr/
Sudokus in many sizes from 6x6 to 100x100.
http://miguelpalomo.pythonanywhere.com/latinpuzzles/menu.html
Generalizes Sudoku with varied boards, repeated symbols and full words inside the boards.
http://www.mathrec.org/sudoku/
Custom Word Doku puzzles devised by Steve Schaefer. Features an entire sentence embedded into the puzzle.
http://www.parolecrociate.net/en/index.asp
Site with user-submitted puzzles, including Sudoku variants, crosswords, rebus, etc. Puzzles can be solved online for points. [English/Italiano]
http://www.pi-c-it.de/index.php/en/
Generates and solves classic and X-Sudoku problems. Diverse options and an integrated help facility.
http://www.picturesudoku.co.uk/
Sudoku variant using sets of puzzles, with matching coloured regions in each puzzle having the same solution.
http://www.realsudoku3d.com/
3D Sudoku program for Windows and Mac. Easy puzzles are free, others cost money.
http://www.samurai-sudoku.com/
Offers one puzzle each day, with a step-by-step solver.
http://www.sidokus.com/
Sidokus are musical sudokus, with musical notes instead of numbers and a hidden melody.
http://www.sudo10.com/
The usual rules of sudoku apply, but the board is an 8x8 board split into 8 triangular cells.
http://www.innoludic.com/
Site with many Sudoku variants not seen elsewhere.
http://sudoku123ca.wordpress.com/
A set of rules applicable to a regular Sudoku, that allows 2 to 5 players solve a single puzzle, and compete for points. [English/Français]
http://www.menneske.no/sudokuto/eng/
Two-player variant. Offers several board sizes to play against the computer. This site has many other Sudoku variations (e.g., Wordoku, 3D Sudoku, Calcudoku, Greater Than Sudoku, etc.) [English/Norsk]
http://www.sudokuwiki.org
Site with Sudoku and many variants, as well solvers, strategy explanations, etc.
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