wpwapp.com 快乐简单一点

游戏简介：

Sudoku (数独 sūdoku, digit-single) (/suːˈdoʊkuː/, /-ˈdɒk-/, /sə-/, originally called Number Place) is a logic-based, combinatorial number-placement puzzle. The objective is to fill a 9x9 grid with digits so that each column, each row, and each of the nine 3x3 subgrids that compose the grid (also called quot;boxes quot;, quot;blocks quot;, or quot;regions quot;) contains all of the digits from 1 to 9. The puzzle setter provides a partially completed grid, which for a well-posed puzzle has a single solution.

Sudoku for beginners and advanced players. Whether you #39;d like to relax or keep mind active – pass your free time in a pleasant way!

***History
Number puzzles appeared in newspapers in the late 19th century, when French puzzle setters began experimenting with removing numbers from magic squares. Le Siècle, a Paris daily, published a partially completed 9x9 magic square with 3x3 subsquares on November 19, 1892. It was not a Sudoku because it contained double-digit numbers and required arithmetic rather than logic to solve, but it shared key characteristics: each row, column and subsquare added up to the same number.

The modern Sudoku was most likely designed anonymously by Howard Garns, a 74-year-old retired architect and freelance puzzle constructor from Connersville, Indiana, and first published in 1979 by Dell Magazines as Number Place (the earliest known examples of modern Sudoku)

***Features
✓ Challenge yourself figuring out your mistakes, or use a HINT to see your mistakes as you go
✓ The pencil mode will help you alot. It is to make notes as on paper. Each time you fill in a cell, notes are automatically updated!
✓ Highlight duplicates to avoid repeating numbers in a row, column and block

Highlights
• Unlimit puzzles
• 9x9 grid
• 4 perfectly balanced levels of difficulty: easy, medium, hard, and expert
• Support both phones and tablets

Train your brain anywhere, anytime!