规则Rules：
标准数独基础上，提示表示这一方向上第一个奇数/偶数。
Classic rules applied. Additionally, the clue shows the first odd/even number in this direction.
作者Author：GGDumplings
◆在线涂鸦 Draw it Online
◆在线做 Do it by CTC
◆在线做 Do it by Penpa
