I’ve previously posted one Jigsaw Tridoku puzzle and it was labeled THINKER. This one is a bit more difficult (or so I think?) and it’s labeled BRAIN. So… if you are unfamiliar with this concept, make sure to have a look at my introductory article on Triangular Sudoku. The rules and solving methods are there, […]
As promised, I am starting posting all sorts of puzzles here on the main page, on a semi-regular basis (2-3 times a week). And since today is Saturday, which used to be the day for Killer Sudoku 10×10 and tomorrow is Sunday, which used to be the day for Zero Killer Sudoku puzzles, quite appropriately, […]
Here is another novelty: Binary Puzzles, also known as TAKUZU. Binary Puzzles are played on square grids of any even size: 6×6, 8×8, 10×10 etc. Your goal is to fill the grids with 0s and 1s, following these simple rules: 1. There can be at most two 0s or at most two 1s next to […]
Here is a nice and simple puzzle for you: NUMBER SEARCH. It’s like word search puzzle but with numbers. Search for the numbers listed below the grid and find them in the grid. Search for them in any of the 8 directions (horizontal, vertical, left diagonal, right diagonal and each of them in forward and […]
The rules of Futoshiki are very simple: 1. The grid is square and can be of any size. Use numbers 1 to the size of the grid to solve the puzzle. 2. Numbers cannot be repeated in a row or column. All numbers must appear in each row and in each column. 3. The “more […]
Some people consider Sudoku Samurai puzzles too big; some other people prefer even bigger puzzles. If you belong to the second category, here is an overlapping sudoku variants puzzle for you: 13 grid Sudoku (Gattai-13) laid out in a quadruple Samurai Sudoku format. Essentially, there are 13 Sudoku sub-puzzles which overlap the same way as […]
When was the last time I posted a Killer Sudoku variant puzzle for the first time? I can’t remember. Well, nearly 8 years (I’m a bit slow, you know) after publishing first Killer Sudoku, it occurred to me that there is no reason not to add the 0 into play. So… ladies and gentleman… a […]
Merry Christmas to all who celebrate this day! 🙂 As a small gift for you, I’ve prepared an odd-even sudoku variation puzzle. It’s not the first odd even puzzle I ever posted, but it is the first plain odd even sudoku. And to spice things up a little bit, this is a very difficult odd/even […]
Can you imagine that I never posted a plain Diagonal Sudoku X puzzle here on the main page? I’ve posted a few Diagonal Samurai Sudoku puzzles and of course I often post Sudoku X puzzles on the Sudoku Variants page. Well, that’s about to change. 🙂 Here is a Sodoku X puzzle which is not […]
As you may have noticed, I’ve been trying to make the navigation on the website a bit easier. In the right hand “sidebar” you can now find quick links to most popular kinds of puzzles. The “Sample Puzzles” category contains hundreds of puzzles which I’ve been posting since 2005. A nice feature is that when […]
