New from Djape!
-
Random puzzle for today!
Books
FREE Puzzles!
FREE Sudoku variants!
- Butterfly Sudoku
- Clueless Sudoku
- Consecutive Sudoku
- Diagonal Sudoku
- Flower Sudoku
- Frame Sudoku
- Greater than Sudoku
- Hyper Sudoku
- Insane Killer Sudoku
- Jigsaw Sudoku
- Killer Samurai Sudoku
- Killer Sudoku 10×10
- Loco Sudoku
- Multi Sudoku
- Non Consecutive Sudoku
- Odd Even Sudoku
- Outside Sudoku
- Sudoku Harakiri
- Sudoku Samurai
- Sudoku Straights
- Super Samurai Sudoku
- TwoDoku
Links
Sample Puzzles!
Category Archives: Solving tips
Griddlers solving – advanced techniques (Bordering)
A while ago I posted an explanation of an advanced Griddlers/Picross/Nonograms/Hanjie solving technique called Bordering. Here is another example of the bordering technique applied in a different way. Consider this partial nonogram in which only the top few rows are shown. Focus on the first three rows and the “7” clues in them. Where can […]
Also posted in Picross
Leave a comment
How To Solve Picross (advanced)

Also posted in General, Picross
3 Responses
How to solve Diagonal Sudoku X

Also posted in Sudoku Variants
Tagged crossover, Diagonal Sudoku, Diagonal Sudoku Crossover, how to solve, IQ, sample puzzle, solving technique, sudoku solving technique, sudoku x, technique
Leave a comment
How to solve Hitori: basic techniques
Solving Hitori puzzles is about recognizing patterns. I will show you some examples of those patterns. They can be split into two groups, one of those that depend solely on the initial positioning of numbers, and another group of patterns that depend on the black and white cells which have been painted in the solving […]
Also posted in Puzzle variants
Tagged EASY, HITORI, how to solve, IQ, solving technique, technique
Leave a comment
How to solve Hidoku: “cornering” (or “dead-end”)
Here is an explanation of a Hidato solving technique that some people might find obvious and they use it without even thinking of it as a special technique. But, for those who still struggle with the more difficult puzzles, here is a quick guide of the technique that I call “cornering“. It can be used […]
Also posted in Puzzle variants
Tagged CONSECUTIVE, hidato, hidoku, how to solve, IQ, solving technique, technique
2 Responses
CalcuDoku, Killer Sudoku and Kakuro calculator!
Some of you may have already started playing “the new Sudoku” puzzles that appear in The Times (UK). We call them CalcuDoku or “Square Wisdom“. It’s an interesting concept, quite similar to Killer Sudoku, but with all four basic arithmetic operations involved. Another change is that repeats within a cage are allowed if possible. To […]
Also posted in CalcuDoku, Kakuro, Killer Sudoku, Puzzle variants
Tagged BOOK, Cage Value, calcudoku, calculator, KAKURO, kendoku calculator, killer, killer sudoku, Square Wisdom, UK
70 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 […]
Also posted in Jigsaw Sudoku, Killer Sudoku
Tagged IMPORTANT, innie, INNIES, innies and outies, IQ, Jigsaw Sudoku, Jigsaw Sudokus, killer, killer sudoku, outie, OUTIES, overlapping sudoku, sample puzzle, samurai, solving technique, sudoku solving technique, Sudoku Variant, Sudoku Variant Puzzle, technique, twodoku, variant
3 Responses