首先什么是數(shù)獨?其實挺簡單,Learn & Play: Sudoku for First Grade 里是這么介紹的:
Sudoku is a logic puzzle. Each puzzle has one or more mini-grids. Each mini-grid has boxes that are arranged in rows and columns. Hints are given in some of the boxes. There are different types of puzzles. The puzzles can be 1 x 1 grids, 2 x 2 grids, 2 x 3 grids, 3 x 3 grids, or even more. Pictures, letters, and numbers are all used within the puzzles in this series.
數(shù)獨就是邏輯謎題??梢允? x 1, 2 x 2, 2 x 3 , 3 x 3或更多。圖片、字母和數(shù)字都可以用在數(shù)獨里。
The objective of a Sudoku puzzle is to fill in all the boxes of the puzzle using only the given hints. Each column, row, and mini-grid must have each picture, letter, or number only once.
每宮(mini-grid)、每橫行和每豎行中的圖片、字母或數(shù)字只能出現(xiàn)一次。
That means you have to pay attention to three things while you try to solve these puzzles. You have to look up and down the column, across the row, and around the mini-grid!