规则Rules：
填入1~6，使得每行、列内数字不重复。每种颜色的区域内包含了2组1~6。
Write 1~6 to make numbers no repeated in each Row or Column. Each color contains 2 groups of 1~6.
◆例题Example
◆在线做Do it by CTC
◆在线做Do it by Penpa
