# What are the kinds of sudoku?

SUDOKU or Single Number, is a Japanese number puzzle that has swept through the world with the same gusto as the Rubiks Cube. Newspapers carry it, software houses, toyshops and bookshops sell a great deal of it. There is even a world championships. In the basic form it is a nine-by-nine grid divided into nine (sub-set) squares of nine squares. Numbers between one and nine are strategically placed by the compiler and the player is invited to fill in the rest. The rules are very simple, the game is incredibly addictive. Fill in all the squares with one number each of one to nine. There are to be no repeated numbers in any vertical or horizontal line nor a repeated number in any sub set (square) of nine squares. How hard can it be? Common variations of Sudoku are 8x8, 12x12 and 16x16 squares. Letters or shapes can be substituted for numbers. Other Japanese number puzzles include Kakuro, Kokonotsu, Kikagaku, Samu.

### What is sudoku?

Sudoku is a puzzle with 9 rows and columns. The rows/columns are divided into 9 3x3 squares (you'll notice the bold lines; those are the things that separate the 3x3 squares.) that are indicated in bold lines. There are many kinds of sudoku. Sudoku was originally called Number Place. It originated in Japan, hence the name, and was a challenge similar to crossword puzzles, which don't work well with kanji.

### What is the hardest sudoku puzzel?

The puzzle known as "Al Escargot" (the snail) is currently considered the hardest Sudoku puzzle. It was created by a Finnish mathematician called Arto Inkala. One of the hardest Sudoku books available is "Extreme Sudoku" by Antoine Alary, not to be confused with "X-TREME Sudoku" by Nikoli & Co. or "Sudoku Xtreme" by Christopher Monckton, which are both an order of magnitude easier.

### Who created sudoku?

Sudoku, originally called Numbers Place, was developed by the Indianapolis architect Howard Garns, and first published by Dell in 1979. The Japanese company Nikoli called it Sudoku in 1984. Number Place is trademarked in the United States, and Sudoku is trademarked in Japan. In Japan, most puzzles are called Number Place. Outside of Japan, most puzzles are called Sudoku. Howard Garns died before Sudoku became famous.

### Who discovered Sudoku game?

Sudoku, originally called Numbers Place, was developed by the Indianapolis architect Howard Garns, and first published by Dell in 1979. The Japanese company Nikoli called it Sudoku in 1984. Number Place is trademarked in the United States, and Sudoku is trademarked in Japan. In Japan, most puzzles are called Number Place. Outside of Japan, most puzzles are called Sudoku. Howard Garns died before Sudoku became famous.

### Are there two possible solutions to one sudoku puzzle?

If you are referring to published Sudoku puzzles, the answer is No. These are generally designed to have exactly 1 solution. That fact can sometimes help solve a Sudoku by eliminating choices that create non-unique configurations. If you are asking about possible Sudoku boards, the answer is yes - there are many more possible sudoku puzzles with multiple solutions than with unique ones. Details and examples can be found at the related link.

### Where can one find a guide on how to solve a sudoku?

One could visit SudokuProfessor or SudokuDragon to find strategies on how to complete a Sudoku Puzzle. Also, if one happens to have a Sudoku Puzzle Book, at the front page is usually a guide to how to complete a Sudoku puzzle. Once you know how to, they are really fun and good for keeping the mind active.

### Were can you print your own sudoku puzzle and get the answers?

Real sudoku puzzles require one solution to be complete. Most sudoku websites use an algorithm to create those one solution sudoku puzzles. You just can't fill an empty grid with random numbers because you can end up with multiple solutions. Here is a list of sudoku websites where you can play online or print sudoku puzzles : http://www.domo-sudoku.com http://www.websudoku.com http://www.sudoku.com http://www.dailysudoku.co.uk yes, but (like I was looking for) you cannot print your OWN puzzles!