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数独是一种极具魅力、好玩的数字智力游戏。它不仅可以供人们休闲娱乐,还对开发智力、增强逻辑思维和提高记忆力具有重要作用,对培养小学生的数学兴趣和提升数学思维很有帮助。本书主要是针对刚入门的小学生们编写的,全书分为绪论、四字数独、五字数独、六字数独、三角形数独和圆形数独。书中提供了多种形式的数独,题型丰富多样,难度适宜,可作为数独爱好者的入门读物和培训教材。