Puzzle Blog Posts With Keyword Sudoku

3D Snowflake Star Sudoku
Welcome to the latest addition to our Sudoku family, the 3D Snowflake Star Sudoku, just in time for the festive season! As you'll see from the image at right, this attractive little puzzle makes the perfect Sudoku addition to any festive-themed puzzle...
Added: 05 Oct 2018

Anniversary Sudoku Gift Books
Welcome to the latest addition in our range of gift related puzzle books - the range of anniversary Sudoku puzzle books. These cover a wide range of anniversaries, including all anniversaries from 1 - 10 years, and then the significant anniversaries...
Added: 18 Sep 2013

Anti-Knight Sudoku: Rules and Puzzle Book
Anti-knight sudoku is an enjoyable variant of a standard sudoku puzzle. The rules are as follows: You must place 1-9 once in each row, column and 3x3 box of the grid, as with standard sudoku. However, there is also one new rule. The new rule is...
Added: 30 Apr 2020

Arrow Sudoku Puzzles
Arrow Sudoku puzzles are an enjoyable sudoku variant that is rarely seen in print. If you have done, then the chances are that you buy the i newspaper on Saturday, and if so you'll be familiar with the striking visual of this puzzle, as per the image...
Added: 11 Jan 2012

Cracking Killer Sudoku
One of the best known sudoku variants is killer sudoku. However, by its very name the puzzle can seem quite intimidating, as it does sound quite daunting! The main difference between this puzzle and normal sudoku is that it is also a maths...
Added: 16 Jan 2011

Creating Irregular Sudoku Puzzles
Have you ever wondered how irregular sudoku puzzles are created? Also known as jigsaw sudoku, these are a reasonably common variant of sudoku that replace the neat 3 x 3 boxes with regions of all sorts of different shapes (but all containing nine...
Added: 03 Dec 2010

Custom Sudoku
Customised Sudoku puzzles are those that have an element of theming to them; whether this be a letter associated with a newspaper forming an additional region in them or some other element. The benefit of a customised or personalised Sudoku puzzle is...
Added: 04 Jun 2013

Free Consecutive Sudoku
Happy New Year! We hope that all our visitors had a great Christmas and a good New Year. As 2011 starts, here is a free consecutive sudoku puzzle for you to print (including the solution in case you get stuck or want to verify your solution). To...
Added: 04 Jan 2011

Free Outside Sudoku Puzzle
The SudoPlus puzzle is a sudoku variant. The rules are the same as the standard version of the puzzle with one additional rule. Place 1 - 9 once in each row, column and 3x3 box. In addition, you will see there are numbers around the grid, at the...
Added: 16 Nov 2010

Free Sudoku Plus Puzzle
Sudoku Plus is a variant of sudoku that you might not have seen before. The puzzle grid itself is the same as usual: a 9x9 grid that you must place 1 - 9 in once per region (row, column and 3x3 box). However there are far fewer givens in the puzzle...
Added: 24 Mar 2011

How To Create Symmetrical Sudoku Puzzles
Two of the most popular puzzles in the world have something in common: and that commonality is symmetry. We're talking about the great staple of the word puzzle world: the crossword, and the logic puzzle that has taken its place alongside the...
Added: 13 Aug 2015

How to Fill a Sudoku Grid
How do you actually go about filling a sudoku puzzle grid? This is a question we get asked from time to time, either by budding puzzle writers, those wanting to create a one-off puzzle, or, no doubt in some cases, those who have been tasked with creating...
Added: 30 May 2020

Puzzle Competitions and World Puzzle Championships
There are various different puzzle competitions that take place around the world, and of course within many countries there are a large range of national contests. Probably the most well-known nationally are crossword championships and scrabble...
Added: 22 Nov 2010

Sandwich Sudoku Puzzles
The below information tells you the rules of sandwich sudoku, and how to play it. You can also: - play a sandwich sudoku online, and - play a puzzle a day via our new puzzle site. Of the many sudoku variants that exist, sandwich sudoku is one of...
Added: 18 May 2019

Sudoku Variants: How Many Are There?
It is probably impossible to come up with a definitive list of sudoku variants because the number of them is truly mind-boggling. And there are new types being created all the time. There is also some ambiguity about what counts as a sudoku variant: for...
Added: 21 Dec 2022

Sudoku: Maths Puzzle or Logic Puzzle?
A question that comes up with some frequency is whether sudoku is a maths puzzle or a logic puzzle, and depending where you look, you can see it referenced as falling in both these genres. Infact, sudoku is purely a logic puzzle. The reason for...
Added: 26 Nov 2010

TatamiDoku Puzzles
Welcome to this exciting new sudoku variant: the tatamidoku puzzle. Tatami is a logic puzzle that can be supplied in a range of different grid sizes, the popular sizes are 6x6 and...
Added: 02 Nov 2018

The i Book of Sudoku
The i Book of Sudoku Puzzles is out now, available to buy from Amazon, featuring standard Sudoku puzzles and also idoku puzzles! The book contains a total of 200 puzzles. The Sudoku puzzles are split into three different levels of difficulty, these...
Added: 03 Aug 2017

World Sudoku Championships 2013
The World Sudoku Championships for 2013 took place in October in Beijing. This was the eighth time that the tournament has been run. It occurs at the same time of year as the world puzzle championship, which you can read more about in the article on...
Added: 17 Nov 2013

Writing a good program to create sudoku
One of the reasons why sudoku has been able to become so popular all over the world is because supply has been able to keep up with demand. And the reason for that is because firstly the vast majority of sudoku seen in mainstream publications are...
Added: 30 Nov 2010