It’s been a long while since my previous Kakuro puzzle. Here is a new one. It’s rather difficult. Of course, just a reminder that there is a book full of my Kakuro puzzles. Kakuro for Thursday, January 21, 2010 – Difficulty: HARD. Click on the puzzle thumbnail to access the puzzle.
I announced this one when I posted my first Outside Sudoku puzzle: it’s a non consecutive Outside Sudoku. Even though it looks like a regular Sudoku puzzle, you must follow one extra rule: two touching numbers must not be consecutive. Outside Non/Consecutive Sudoku for Monday, January 18, 2010 – Difficulty: THINKER. Click on the puzzle […]
It’s been a while since I last posted a Samurai Sudoku variant puzzle. Here is a new one. As far as I remember, I never posted such puzzle before. Remember: shaded cells MUST contain only ODD numbers! OddEven Jigsaw Samurai Sudoku for Thursday, January 14, 2010 – Difficulty: COOL. Click on the puzzle thumbnail to […]
Another novelty in 2010 – Outside Jigsaw Sudoku. Read the rules of Outside Sudoku first. And then, twist it a little – it’s a Jigsaw (Irregular) Sudoku puzzle! UPDATE: One clarification about the rules of Outside Jigsaw Sudokus: The clues tell you which numbers appear in the 3 closest cells in that row/column. They are […]
As you may have noticed, I’ve changed things a little on the site, by removing some of the daily puzzles. While Daily Killer Sudoku and Daily Sudoku variation will remain, as well as bi-Weekly Samurai Sudoku, all other puzzles will be posted here, on the main page of the site. Expect at least a couple […]
Here is something new (for this site) for the New Year: Outside Sudoku. This puzzle is also shown today on the Daily Sudoku variants page, but I thought I should properly introduce it. The rules: 1. For the 9×9 grid all standard Sudoku rules apply. However, you don’t have any starting clues in there! 2. […]
Another addition to my portfolio of various number/logic puzzles are Nurikabe puzzles. I think these puzzles are being undeservedly somewhat neglected in the puzzle world and I intend to change that. The number of solving techniques and approaches that can be found in Nurikabe puzzles far exceeds any other puzzle type. For me it was […]
This is my largest CalcuDoku puzzle so far. Previously I published a CalcuDoku Samurai 7×7, but this time the puzzle is even larger: 8×8 CalcuDoku Samurai for Saturday, February 28, 2009. CalcuDoku for Saturday, Feb 28, 2009Difficulty: IQClick on the puzzle thumbnail to access the puzzle.The Reduced Operators version of CalcuDoku is here.These puzzles are […]
UPDATE: After some debate with udosuk (see comments), I’ve decided to adopt the rule that every cell must be either black or white, it can’t be left “undecided”. I’ve changed the original puzzle accordingly so you can download it now. At the end of last year, I announced that I will be introducing more types […]
It’s only Wednesday, but I decided to present you with another Sudoku Straights puzzle. Remember that they are shown every Friday on the Daily Sudoku variants page. The rules: 1. Use numbers 1-9. Numbers cannot be repeated in rows/columns. 2. There are no nonets (3×3 boxes) like in other Sudoku puzzles. 3. Black cells do […]
