NanPure

## Description

A nanpure puzzle consists of a 9 × 9-square\n grid subdivided into nine 3 × 3 boxes.\n Some of the squares contain numbers or things. \n\nThe object is to fill in the remaining squares \nso that every row, every column, and every \n3 × 3box contains each of the numbers\n or things from 1 to 9 exactly once.\n\nUse your intuition, you can drag!\nJust drag the item you want onto\n the board,except to those spots that\n are blocked with a padlock.\nYou can also select the destination box\n and then just click the item below.\n\nStart now!