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变形数独是在标准数独的基础上增加这样或那样的额外条件,因此变形数独比标准数独更有乐趣,也更有挑战性。在刷题之前,你最好有一点儿标准数独的基础,更要仔细阅读变形数独的规则要求。变形数独不一定比标准数独更难,所以不必有多余的担心。《变形数独300题》介绍了常见的十种变形数独的简要技巧,针对这些题型,作者还设计了300道科学合理的题目,在刷题过程中,你一定会体会到变形数独对大脑的磨砺和对耐心的考验。