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Sudoku Xtra, written by Dr Gareth Moore
Sudoku Xtra 24
logic puzzle compendium
Printed puzzles from Dr Gareth Moore

Killer Sudoku

Jigsaw Sudoku
Consecutive Sudoku
Kropki Sudoku
Sudoku XV
Oddpair Sudoku
Toroidal Sudoku
Killer Sudoku-X
Killer Sudoku

Jigsaw Killer

Looking for puzzles for your book, magazine or newspaper?


Sudoku puzzles and instructions

Play free Sudoku puzzles:
Sudoku   28th Jan
  Sudoku 1520 
Sudoku   22nd Dec
  Sudoku 1512 
Sudoku   2nd Dec
  Sudoku-10 36 
Sudoku   8th Nov
  Sudoku 1507 
Sudoku puzzles are the surprisingly-popular number-placing puzzles that were introduced to the world at large via the pages of The Times in late 2004, and have since gone on to earn a place in many of the world's newspapers.

How to solve Sudoku puzzles
A Sudoku puzzle consists of a grid, usually 9x9 but sometimes smaller or larger, where you must place 1 to 9, or 1 to whatever the size of the puzzle is, once each into every row, column and bold-lined rectangle. In the 'classic' 9x9 puzzle these bold-lined rectangles are 3x3 in size and there are 9 of them.

Sudoku exampleWhen you first open a puzzle some of the squares are already filled-in, and your task is to fill in all of the remaining ones. Since Sudoku is a logic puzzle, the intention is that you do this without guesswork - instead logical deduction is the intended method, and this is where the fun comes in. It's also important to note that despite using digits, there is absolutely no mathematics involved! You could use pictures or letters or any other set of symbols you liked.

Look at the solved puzzle on the left. Notice how each row, column and bold-lined rectangle has one each of 1 to 6 in it. That's because this is a 6x6 puzzle. In a 9x9 puzzle there'd be one each of 1-9 in each of those regions.

Sudoku puzzles on puzzlemix appear at a wide range of sizes and difficulties. Usually they are 6x6, 8x8 or 9x9, in which case you must place 1-6, 1-8 or 1-9 once each into every row, column and bold-lined rectangle. The bold-lined rectangles are 2x3 for 6x6 puzzles, 4x2 for 8x8 puzzles and they are 3x3 for 9x9 puzzles.

Occasionally puzzlemix will feature a larger Sudoku 12x12 or even Sudoku 16x16 puzzle. In these cases you must place 1 to 9 and A to C, or 1 to 9 and A to G respectively, into each row, column and bold-lined box.

Other types of puzzle
It's not just Sudoku you can solve online at puzzlemix. You can also solve logic puzzles that include these:
CalcudokuConsecutive SudokuFutoshikiHanjie
HitoriJigsaw SudokuKakuroKiller Jigsaw Sudoku
Killer SudokuKiller Sudoku ProKiller Sudoku-XKropki Sudoku
NurikabeOdd Pair SudokuSkyscraperSlitherlink
Sudoku XVSudoku-XToroidal Sudoku

Are you searching for help with Sudoku puzzles? Stuck on solving Number Place? Don't know the instructions for Sudoku? Need Sudoku instructions? Want solving hints and tips for Sudoku? Then puzzlemix is the place for you to play Sudoku puzzles online.

External links

Looking for printed Sudoku puzzles? Visit Sudoku Xtra for puzzle magazines and books.

Or are you looking for a Sudoku puzzle supplier? If so then check out Any Puzzle Media, my puzzle production company.

All site contents ©Gareth Moore 2005-2015 - email - publishers please visit Any Puzzle Media