Tag Archives: sudoku solving technique

  • Flagship books

    The Way of Samurai_Sudoku, volume 1        Revenge of Killer_Sudoku, volume 1        Jigsaw_sudoku, very twisted puzzles        Hanjie_, Griddlers_, Nonograms_: whatever the name, it is the same game

Sudoku for Kindle

300 difficult Sudoku puzzles for Kindle

Another Kindle game has been released. This is the first re-release for Kindle of a paperback sudoku book that I published before. It’s a collection of 300 classic Sudoku puzzles for Kindle. Now, those are not just your ordinary easy, repetitive Sudokus that you find in your local newspaper. No. These are tough. Challenging. Demanding. [...]

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Twodoku

twodoku_20120311_difficult

Here we go… another “classic” Sudoku that I can’t remember posting before. Twodoku is a Gattai-2 puzzle, which means that there are two overlapping Sudokus. It’s a tough one, I think. In order to solve it, you should use all classic Sudoku solving techniques, but it would help if you also knew how to apply [...]Flower_ Sudoku and Outside_ Sudoku

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Butterfly Sudoku

butterfly_sudoku_8_2_THINKER_u48_0_0_159_0_0_0_0_11_25__boxbreaks_c32_s_30_342239107

I realized that I never posted a classic Butterfly Sudoku puzzle on the main page of the website. A few of them have been posted on the Daily Sudoku Variants page, but the puzzles posted there disappear from this website after a week. So… to rectify this issue, I am presenting you with a Butterfly [...]Sudoku_Straights, where Poker meets Sudoku

Posted in Free sample puzzles, Sudoku Variants | Also tagged , , , , , , , , , , , , , , , | 2 Responses

The Law of Leftovers (LOL)

I promised to explain this technique, which applies to Jigsaw Sudoku (aka irregular blocks) puzzles, a while ago, so it’s time to keep the promise. You can find the same technique explained on various other sites, too. This technique is somewhat similar to innies/outies which is used for solving Killer Sudoku puzzles, but there is [...]

Posted in Jigsaw Sudoku, Killer Sudoku, Solving tips | Also tagged , , , , , , , , , , , , , , , , | 3 Responses

Swordfish Solving Technique explained

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A while ago I explained the X-Wing solving technique. Recently I shown my explanation of other basic, Classic Sudoku solving techniques. The only remaining solving method that I don’t consider trial and error is Swordfish. So, to complete the list of Sudoku solving tips, here is an example of a Sudoku puzzle that can be [...]

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Posted in Solving tips | Also tagged , , , , , , , , | 33 Responses
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