Game rules:Each column (列) must have all of the numbers from 1 to 9. No two numbers in the same column can be the same.Each row (行) must have all of the numbers 1 through 9. No two numbers in the same row can be the same.
21世纪报社版权所有，未经书面授权，禁止转载或建立镜像。 主办单位：中国日报社 Copyright by 21st Century English Education Media All Rights Reserved 版权所有 复制必究 京ICP备13028878号-12京公网安备 11010502033664号
京公网安备 11010502033664号
