Here is a brand new Sudoku variation as a special Christmas present. Hope you will like it. 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 not contain numbers. Therefore, not all numbers 1-9 will appear […]
I believe that after all the puzzles that I’ve created and posted for you, you know that I prefer them difficult. It seems that there is a belief that the difficulty of Hidoku can only be increased by increasing it’s size. I know for a fact that it’s not true, because some of the Hidoku […]
Today I show you a bigger and more difficult Hidoku puzzle. To make sure you know what you’re solving, here are the (very simple) rules of Hidoku again: 1. It can be played on a square or rectangle of any size 2. Numbers from 1 to the size of the puzzle are used. For example, […]
I told you there is something special coming today and here it is: my first Hidoku puzzle! These puzzles have been introduced earlier this year and it seems they’re catching on. They are being published under the name “Hidato” but I will have to use Hidoku. The rules of Hidoku (Hidato™): 1. It can be […]
Another rather large Kendoku puzzle for the end of week. This time there are 4 puzzles arranged in a “Ring”. 7×7 Diagonal Kendoku Ring for Friday, October 17, 2008. CalcuDoku for Friday, Oct 17, 2008Difficulty: IQClick on the puzzle thumbnail to access the puzzle.The Reduced Operators version of CalcuDoku is here.These puzzles are also available […]
Here is another Kendoku puzzle where some cells do not belong to any cage. And incidentally, it’s my first INSANE Kendoku, although I don’t think it’s so mad as some of my killers have been. 🙂 8×8 no-cages Kendoku for Thursday, October 15, 2008. CalcuDoku for Thursday, Oct 16, 2008Difficulty: INSANEClick on the puzzle thumbnail […]
9×9 Diagonal Kendoku X for Wednesday, October 15, 2008. CalcuDoku for Wednesday, Oct 15, 2008Difficulty: BRAINClick on the puzzle thumbnail to access the puzzle.The Reduced Operators version of CalcuDoku is here.These puzzles are also available to newspapers, magazines and other publishers. Be the first to have my CalcuDoku puzzles printed!You can use my CalcuDoku Calculator […]
Time for another “vanilla” Kendoku puzzle, also known as CalcuDoku. 6×6 Kendoku for Tuesday, October 14, 2008. CalcuDoku for Tuesday, Oct 14, 2008Difficulty: BRAINClick on the puzzle thumbnail to access the puzzle.The Reduced Operators version of CalcuDoku is here.These puzzles are also available to newspapers, magazines and other publishers. Be the first to have my […]
Another brand new variety for you – Non-Consecutive Kendoku So, in addition to all Kendoku rules, there is one extra: two adjacent cells MUST NOT contain two consecutive numbers. 8×8 Non-Consecutive Kendoku for Monday, October 13, 2008. (Non)-consecutive CalcuDoku for Monday, Oct 13, 2008Difficulty: THINKERClick on the puzzle thumbnail to access the puzzle.The Reduced Operators […]
Today’s Kendoku puzzle should take you through the weekend. 🙂 It’s my first ever Kendoku Samurai (Gattai-5)! To clarify things again: numbers CAN BE repeated in cages. 7×7 Kendoku Samurai for Friday, October 10, 2008. CalcuDoku for Friday, Oct 10, 2008Difficulty: IQClick on the puzzle thumbnail to access the puzzle.The Reduced Operators version of CalcuDoku […]