Hittori Solving Techniques

(For rules click here)

Technique 3 :

Triple corner

If you have a corner with three similar numbers 2 2 2 3 2 2 2 3 The same is true if the three numbers are set the other way. 3 2 2 2 3 2 2 2

(For rules click here)

Hittori Solving Techniques

(For rules click here)

Technique 2 :

Corner Way

 (For rules click here)

Hittori Solving Techniques

(For rules click here)

Technique 1 :

When you have marked  one cell as circle then you can mark corresponding number cells in that row or column as black.

Similarly, when you mark a cell black then mark the adjacent cells in that row or column as circle ( it means they are safe).

(For rules click here)

SOLVING TECHNIQUES

• Hittori

• Technique 1: Notations 
• Technique 2: Corner Way
• Technique 3: Triple Corner
• Technique 4: Doubles Corner
• Technique 5: Triple Middle
• Technique 6: Corner/Edge Closing
• Technique 7: Inverse 

• Heyawake
  
• Technique 1: Corner / Border Cells
  
• Fences

• Technique 1 & 2 : Notation / 0's and 3's
• Technique 3        : Corners
• Technique 4        : Double 3's
• Technique 5        : 2's and 3's 
• Interesting Facts

• Kakuro 

• Technique 0 : Tricks
• Technique 1 : Lone Square
• Technique 2 : Cross Reference
• Technique 3 : Combo Reference
• Technique 4 : Filled Areas

• Sudoku

• Technique 1 : Pencil Marks
• Technique 2 : Sole Candidate
• Technique 3 : Unique Candidate 
• Technique 4 : Block/column/row interaction 
• Technique 5 : Naked Subset

Advance Techniques (Master Techniques) 

• Technique 6 : X-Wing
• Technique 7 : Swordfish
• Technique 8 : Guess/Tips 
• NOTE : Besides above there are few more techniques, but then it would make the sudoku more complicated then it looks. So keep open your eyes and first try to solve it with basic rules/principles. If you stuck up anywhere then try the dificuilt ones (with the help of pencil marks - for more clarity).                                    

THERE ARE MANY MORE TECHNIQUES TO SOLVE IT BUT THE ABOVE SHOWN TECHNIQUES WILL BE HELPFUL WHILE SOLVING THE PUZZLES.

YOU WILL ENCOUNTER MANY TRICKS ON YOUR OWN WHILE SOLVING AFTER GAINING SOME EXPERIENCE. 

HITORI

HITORI

Hitori (Japanese for: Alone or one person) is a type of logic puzzle published by Nikoli.

Another name for this puzzle is  "leave me alone".

Rules: 

1. Each number must not be more than once in each row and column. If there are more, some must be marked as black.
2. No black cell beside each other, only in diagonal
3. The white cells must be continuous

Example :

Solution :

SUDOKU

SUDOKU

• A Sudoku should have 30 or less initial values filled in out of the 81 total
• Sudoku should be solvable by entirely logical deduction - no guesses should be needed. (That doesn't mean that you can't use guesswork, just that you shouldn't have to.
• The Sudoku must only have one solution!

Of course, for beginner puzzles, often there are more than 30 values filled in - this is just to give you a head start while you're learning!

Many people think that harder Sudoku puzzles are the ones with less values filled in to begin with. While this is often the case, there are plenty of frustratingly difficult puzzles available with 28 or more cells filled in - difficult because they really require you to use lots of different solving techniques to complete them.

Rule :

Complete the Sudoku puzzle so that each and every row, column, and region contains the numbers 1 to 9 (for 9x9)

1 to 6 (for 6x6) so on..

There is only one solution to a properly designed Sudoku puzzle.

Example :

Solution :

KAKURO

KAKURO

Kakuro (cross-sums) is an addictive puzzle game from Japan and is often qualified as Sudoku's bigger brother. If you enjoy solving Sudoku puzzles, you will surely love to be challenged by Kakuro. And ... don't be misled by the first impression - Kakuro is much easier than it may seem and involves more logical than mathematical skills. 

Rules :

• fill all empty cells with numbers from 1 to 9 so that
• the sum of all numbers in a sequence is equal to the corresponding clue and
• no number appears in a sequence more than once.

Each Kakuro puzzle must have a unique solution.


EXAMPLE :

Solution :

FENCE

FENCE

Slither Link (also known as Fences and Loop the Loop) is a logic puzzle with simple rules and challenging solutions.

Rules :

The rules are simple. You have to draw lines between the dots to form a single loop without crossings or branches. The numbers indicate how many lines surround it. 

Example :

 Solution :