about 7 months ago - No comments
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 >
about 11 months ago - 1 comment
Little-Killer Sudoku 9×9 1 puzzleIn Little-Killer Sudoku the total of each of the diagonals in the grid, other than those 9 cells long, is given. Each number has an arrow next to it which points to the diagonal it gives the sum of, so therefore the top-left cell in this grid must be a 9 More >
about 11 months ago - No comments
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 >
about 11 months ago - 1 comment
Sudoku Non-consecutive-diagonal 9×9 1 puzzleThis is a non-consecutive-diagonal sudoku puzzle. No digit may be diagonally-adjacent to a consecutive digit. But as you can see from the givens, consecutive numbers can be adjacent horizontally or vertically. What you can’t have, for example, is a 1 diagonally next to a 2 because the 1 & 2 are More >
about 11 months ago - No comments
Sudoku Snake 9×9 1 puzzleHere’s something a little different – a consecutive snake sudoku.
Each of the shaded snakes consists of only ‘consecutive’ cells along its length, which means that any two cells joined by a snake must have values with a difference of 1, such as 2&3 or 7&8. So for example the 4-square-long snake More >
about 11 months ago - No comments
Blackout Jigsaw Sudoku 9×9 puzzleIf you like tricky Sudoku variants, here’s one just for you! It’s a Blackout Sudoku with Jigsaw regions.
The rules are simple: in each row, column and bold-lined jigsaw region you must place 8 different digits in the range 1 to 9. Don’t place a digit on the shaded squares.
If you prefer More >
about 11 months ago - No comments
Sudoku Anti-King Argyle 9×9 1 puzzleSometimes it’s fun to mix variations together, so here’s a combination of Anti-king and Argyle Sudoku.
Anti-king means that no number repeats a “king’s move away in chess”. In practice this means that no two identical numbers touch in any direction, including diagonally.
Argyle means that no number repeats on any marked More >
about 11 months 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 >
about 11 months ago - 1 comment
Sudoku Diagonal 9×9 1 puzzleI’m working on lots of different Sudoku variants for my forthcoming book, so I thought I’d post some of them here. On that basis, here’s an Argyle Sudoku puzzle. Just follow the usual rules but also note that you can’t repeat a digit in any of the marked diagonals.
You can now More >
about 1 year ago - No comments
Non-consecutive Sudoku puzzleI’m currently working on a new book of sudoku variants for a major publisher, so have been making lots of new puzzles of different types. From time to time I’ll probably post again here with some examples of these.
I thought I’d start off with Non-Consecutive Sudoku. This is a minor variant on Consecutive More >
That’s the minimum number as you can probably easily convince yourself, because, despite its perhaps intimidating appearance, it’s essentially a set of trivial 1- and 2-digit sudokus laid on top of each other.
about 11 months ago
This was fun! I think it’s a pretty puzzle, with all the shading, circles and squares. More importantly, it was lovely and easy. I could do a book of these!