Killer Sudoku
Sudoku Xtra 11 is out now, but I’m holding off the announcement post until it’s available on Amazon.com too. In the mean time, here’s a Killer Sudoku puzzle.
Just place 1 to 9 in each row, column and bold-lined box. Each dashed-line cage should add to the given sum, and you can’t repeat a number in a cage.
Product Killer Sudoku
about 10 years ago - Comments Off
Product Killer Sudoku 9×9 puzzle
If you’re interested in sudoku, come along to the official UK sudoku championship next weekend, the 29th-30th of March, at Selsdon Park Hotel just south of London, outside Croydon. There’s full details on the UK Puzzle Association site. There’s still spaces available.
Mind you, it’s not just sudoku – there’s also the More >
iPad, iPhone and other touch support on PuzzleMix
about 12 years ago - Comments Off
Just a quick heads-up that PuzzleMix, my site where you can play a wide range of puzzles online, now supports touch screen play for all of the number entry puzzles – so that’s Sudoku, Killer Sudoku, Futoshiki, Calcudoku, Skyscraper, Sudoku X, Kropki Sudoku, Killer Sudoku Pro, Jigsaw Sudoku, Consecutive Sudoku, Wraparound Sudoku, Sudoku XV, Killer More >
Killer Sudoku Zero
about 12 years ago - Comments Off
Zero Killer Sudoku 9×9 1 puzzleProbably because it sounded cool, or it was invented by someone who didn’t quite speak English, Killer Sudoku puzzles with some of the redundant clues removed are often referred to as ‘Zero’ Killer Sudoku. Or perhaps it’s because there are “zero redundant clues”. In any case, here’s one of those More >
Frame Sudoku
about 12 years ago - 3 comments
Frame Sudoku 9×9 1 puzzleHere’s a Frame Sudoku puzzle. Each number outside the grid gives the sum of the three nearest digits in that row or column, so for example if there is a 7 outside the grid then there must be a 1, 2 and 4 (1+2+4=7) in the first three cells in that More >
Samurai Killer Plus and Minus
about 14 years ago - Comments Off
Killer Plus Minus Samurai puzzle
If you’re a Sudoku Xtra reader you’ll have seen these in their regular 9×9 form in both issues 5 and 6, but this is the first time I’ve made a Samurai one, and the first time I’ve posted one here I think.
This is essentially a regular Killer Sudoku puzzle, except that More >
Samurai Killer Sudoku Pro 6×6
about 14 years ago - Comments Off
Killer Sudoku Pro 6×6 Samurai puzzle
It’s been quiet here recently – much of my effort has been going on my UK General Election site, How To Vote, although Sudoku Xtra 6 was out on Saturday too. Anyway, there are still 10 days to go to the election but after that I’ll get some time back!
However I thought I should More >
Toroidal Killer Toroidal Jigsaw Sudoku
about 14 years ago - 4 comments
Toroidal Killer Jigsaw Toroidal puzzle
A while back someone asked for some variant toroidal patterns on PuzzleMix, so I was just adding a couple of them to the daily puzzles section when it occurred to me that I could put up a few toroidal killer sudoku too, for a change. However I then realised that the More >
Killer Sudoku-X
about 14 years ago - 2 comments
I wrote quite a lot yesterday about whether you “needed” the X in some Sudoku-X puzzles. I promised that I’d follow up with the result of analysing a stack of Killer Sudoku-X puzzles, and so here is that result.
I picked 64 Killer Sudoku-X puzzles (52 for the daily puzzlemix section plus 12 for the weekly More >
Jigsaw Killer Sudoku
about 14 years ago - 1 comment
Killer Sudoku Jigsaw puzzle
I’ve recently been working on refreshing the content for PuzzleMix.com, my play-online puzzle site, and one of the puzzle types I’ve been making is Killer Jigsaw Sudoku, where you not only have the jigsaw-shaped Killer regions but also jigsaw shapes instead of the regular 3×3 Sudoku boxes.
So I thought it would be a More >
Double Toroidal Killer Sudoku Pro 8×8
about 15 years ago - 1 comment
Double Toroidal Killer Sudoku Pro 8×8 puzzle
This puzzle certainly won’t be to everyone’s tastes, but it’s a double toroidal killer sudoku pro. Why double? Because there are toroidal jigsaw-shaped Sudoku regions, and there are toroidal jigsaw-shaped Killer Sudoku Pro cages. In other words, some of them wrap around the edges of the puzzle. It’s also More >
Comments are closed.
about 13 years ago
Killer Sudoku is a fun way to stimulate those little gray cells. This and my morning coffee got my synapses firing!