规则Rules:
标准数独基础上,提示数字表示这一方向里,6两侧的数字。Classic rules applied. Additionally, clue shows the adjacent numbers of 6 in this direction.
作者Author:苏苏
◆在线涂鸦 Draw it Online
◆在线做 Do it by CTC
◆在线做 Do it by Penpa