数独为一种逻辑游戏，注重逻辑与推理。本书是数独研究者、爱好者和初学者由浅入深学习数独的数学普及读物。作为介绍数独的智力游戏的图书，相比较于市面上其他以题库为主的同类书籍，本书表现出较强的学术深度和研究价值，值得一读！

本书首先介绍了数独游戏的定义和规则, 逐条说明求解数独问题的运算规则及其符号, 并辅以应用实例。此外, 本书依次归纳了数条普遍适用的运算规则和一定数量的数独题目, 帮助读者较快适应数独规则, 轻松实践上手。

第1章 数独及其运算规则 ···································1
第2章 数独运算规则应用举例 ·····························20
2.1 数独题目1 ··················································20
2.2 数独题目 2 ··················································23
2.3 数独题目3 ··················································27
2.4 数独题目4 ··················································30
2.5 数独题目5 ··················································33
2.6 数独题目6 ··················································37
2.7 数独题目7 ··················································41
2.8 数独题目8 ··················································45
2.9 数独题目9 ··················································51
2.10 数独题目10 ···············································55
第3章 格圈、格链及其应用 ································56
3.1 格圈和格链 ·················································56
3.2 广义格链 ····················································73
3.3 排除法 ·······················································89
第4章 数独世界难题 ········································ 103
4.1 数独难题1 ················································· 105
4.2 数独难题2 ················································· 111
4.3 等价的数独题目 ···········································116
附录一 移棋相间法 ············································118
附录二 天平秤球 ·············································· 121
附录三 确定帽子颜色 ········································ 129