Sudoku 2

Andrews most popular Sudoku Sudoku 2 has evolved perfectly.
Sudoku 2 features:
1, all completely free puzzle
2 difficulty levels: easy, easy, medium, high-level, difficult, very difficult, devil, nightmare
3, pencil marks set automatically or automatically erased
4, you can Undo, Redo
5, automatically save
6, highlighting selected digital and pencil marks
7, projecting completed digits
8, highlighting the incorrect number
9 different states in different colors
10, very advanced prompts
11, game statistics: Each difficulty level of the fastest, average, slowest time
Sudoku 2 games are completely free, and will support more features. We collected 20,000 + Sudoku library!
Sudoku 2 current standard Sudoku, Sudoku diagonal, several skyscrapers alone!
Standard Sudoku is a logic puzzle game calculus. Sudoku players need to 9 × 9 on the disk (squared) of the known figures, reasoning out all the remaining space figures, and meet each row, each column, each thick line intrauterine figures 1-9 inclusive, does not repeat .
Diagonal Sudoku, Sudoku players to fill in the big squares of 9 × 9 number 1 to 9, so that they meet the following rules: Each number can appear like figures in each small squares in each row, each large columns and diagonals are also not appear the same number.
Skyscraper Sudoku：Each number represents the height of the skyscraper in each cell. The digits outside the grid indicate the number of. Skyscrapers seen from the corresponding direction.
Interface is squared, each palace is divided into nine small cell. Given certain conditions known numbers and problem solving in this eighty-one grid, the use of logic and reasoning, fill in the numbers 1-9 in the other spaces. .
The nature of problem solving are two: the implicit and explicit unique solution only, their name is based on the number of candidates on the naming method.
Sudoku solving common methods are:
Exclusion method: find a unique digital space can be filled within the cell, called the exclusion method, digital spaces can be filled only exclusion than the solution (recessive unique solution) is called.
Remainder method: using Gewei find only can fill numbers, called the remainder method, Sites of unique numbers are called only I can fill solution.
The above method is called the base solution, all the other solution is called Advanced solution is to fill the gap in basic solution, the so called secondary solution.
Advanced Solution include: Block exclusion method, the array method, diagonal corners, only rectangular, full-value graves, singular chain, different number of chains and other advanced techniques, and so the number of chains. Methods have been developed out of the hundreds of species.
The future will continue to add more other variations Sudoku
Sudoku 2 not just a game, players can also enjoy a colorful game world of their own. Experience the beautiful game screen, the rich and varied game modes of gameplay.