Tag Archives: BRAIN

Non Consecutive and Consecutive Sudoku

Here is another multi sudoku puzzle, although this one consists of just two overlapping sub puzzles with very similar rules. Top puzzle is non consecutive sudoku. Again, as many times before, I warn you: it looks like just vanilla sudoku, but you must follow an additional rule: two consecutive numbers cannot be placed orthogonally next […]

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Poker Straights

Here is a new kind of puzzle, for this site for sure and at least I haven’t seen them elsewhere! Remember the Straights puzzle? Well, this is kind of like it… but it’s called POKER Straights. The reason being that there are all 13 “cards” in play… from 2 to 10 and then Jack, Queen, […]

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Jigsaw Tridoku

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, […]

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Cutting Edge Sudoku Variants

A new Sudoku Variants book has been published! Those of you who receive my newsletter have already been notified about this, but here is the official announcement again. Cutting Edge Sudoku Three Sudoku Variants to Hone Your Brain The three kinds of Sudokus in this book are: Outside Sudoku Flower Sudoku Conscutive Sudoku IMPORTANT: This […]

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Futoshiki

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 […]

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Difficult Killer Sudoku book

Perhaps you’ve already noticed the cover of my new Killer Sudoku book. In case you haven’t, here is a proper presentation of this new and fiendish sudoku book. So… many of you have asked for a book with only the most difficult of my Killer Sudokus. In “Revenge of Killer Sudoku 6” I dropped the […]

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Pirates’ Games

This is not a puzzle related post. 🙂 It’s a brain teaser (I used to post brain teasers years ago). I’ve been studying game theory lately and wanted to share one “classic” problem of this discipline with you. See if you can solve it by yourself. Post your solution as comments below this post. So… […]

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