每天玩点趣味数独

　　真正的数独并非只是简单的数字和方格的机械变化，在数字的移行换位中隐藏着独特的思维创造：每一道数独题都只有一个的答案，纯粹的逻辑推理就可以破解。它是每个制作者与每个游戏者面对面进行的思想交锋！本书收录的这数百个数独游戏，除了常规数独，还有很多变形数独，以及一些在数独的基础上演变出来的近亲……但不论哪一种，在你掌握的最基本的解题技巧后，这些数独题目都可以迎刃而解。

　　于雷，哈尔滨人。毕业于北京大学。畅销书作家，中国逻辑学会会员，逻辑思维训练专家。一直致力于青少年逻辑思维的训练与开发。已出版一批青少年益智读物，包括《逻辑思维训练500题》《逻辑思维训练500题（白金版）》《北大清华学生爱做的400个思维游戏》《逻辑其实很简单》等深受广大读者欢迎。其中《逻辑思维训练500题》被北京图书大厦评为“2008年读者最喜爱的图书（社科类）”，至今销售已逾13万册。

第一部分　初探门径：认识数独 ·······1
一、数独概述 ····································1
二、数独的基本元素 ························2
三、常规数独训练题 ························3
1．数独（1） ····································· 3
2．数独（2） ····································· 3
3．数独（3） ····································· 4
4．数独（4） ····································· 4
5．数独（5） ····································· 5
6．数独（6） ····································· 5
7．数独（7） ····································· 6
8．数独（8） ····································· 6
9．数独（9） ····································· 7
10．数独（10） ································· 7
11．数独（11） ································· 8
12．数独（12） ································· 8
13．数独（13） ································· 9
14．数独（14） ································· 9
15．数独（15） ······························· 10
16．数独（16） ······························· 10
17．数独（17） ······························· 11
18．数独（18） ······························· 11
19．数独（19） ······························· 12
20．数独（20） ······························· 12
21．数独（21） ······························· 13
22．数独（22） ······························· 13
23．数独（23） ······························· 14
24．数独（24） ······························· 14
25．数独（25） ······························· 15
26．数独（26） ······························· 15
27．数独（27） ······························· 16
28．数独（28） ······························· 16
29．数独（29） ······························· 17
30．数独（30） ······························· 17
31．数独（31） ······························· 18
32．数独（32） ······························· 18
33．数独（33） ······························· 19
34．数独（34） ······························· 19
35．数独（35） ······························· 20
36．数独（36） ······························· 20
37．数独（37） ······························· 21
38．数独（38） ······························· 21
39．数独（39） ······························· 22
40．数独（40） ······························· 22
41．数独（41） ······························· 23
42．数独（42） ······························· 23
43．数独（43） ······························· 24
44．数独（44） ······························· 24
45．数独（45） ······························· 25
46．数独（46） ······························· 25
47．数独（47） ······························· 26
48．数独（48） ······························· 26
49．数独（49） ······························· 27
50．数独（50） ······························· 27
答案 ··················································28
IV
每天玩点趣味数独
第二部分　渐入佳境：解题技巧 ·····53
一、解题技巧概述 ··························53
二、数独技巧训练营 ······················76
51．数独（51） ······························· 76
52．数独（52） ······························· 77
53．数独（53） ······························· 77
54．数独（54） ······························· 78
55．数独（55） ······························· 78
56．数独（56） ······························· 79
57．数独（57） ······························· 79
58．数独（58） ······························· 80
59．数独（59） ······························· 80
第三部分　高手养成：变形数独 ···122
第四部分　魔鬼训练：数独的近亲