规则Rules:
标准数独基础上,箭头必须指向其相邻格(上下左右)中,与箭头所在格的数字最接近(指差值的绝对值最小)的所有格。
Classic rules applied. Additionally, arrows must point to the nearest number (the smallest difference in absolute value) in all cells adjacent to it (share an edge with this cell).
作者Author:GGDumplings
题目来源:2024年Grand Sudoku Prix Round4 中国轮,落选题