The research on the difficulty grade and piecing skills of tangram

Shujun Cai Shenzheng Foreign Languages School Yizhi Jiang Shenzheng Foreign Languages School Minyu Zeng Shenzheng Foreign Languages School

S.-T. Yau High School Science Awarded Papers mathscidoc:1608.35015

2008
Tangram is one of the oldest puzzle games in China. It can make up volatile and wonderful patterns. To master the game, it would be ideal if the players can go through several complexity levels from the easiest to the most complicated. However, tangram today does not have the difficulty grade. Only a similar puzzle game—Japanese jigsaw puzzle has the difficulty grade which is not very reasonable. And the grading process is not provided. Therefore, we try to provide the theoretical basis of dividing the difficulty grades by means of probability of the patterns. We hope we can make some complements to this ancient game. Among the complicated influential factors, we sum up three key elements: the number of answers,the length of side, the basic figures. Based on these points, we have devised three plans, the procedural thinking of computer, the length-of-side principle, division principle, to calculate the probability. Then, we made comprehensive analysis on the probability. Finally, we got the difficulty grade of some classical tangram patterns. Moreover, we summarize some skills of piecing together the patterns.
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@inproceedings{shujun2008the,
  title={THE RESEARCH ON THE DIFFICULTY GRADE AND PIECING SKILLS OF TANGRAM},
  author={Shujun Cai, Yizhi Jiang, and Minyu Zeng},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160813215154756648063},
  year={2008},
}
Shujun Cai, Yizhi Jiang, and Minyu Zeng. THE RESEARCH ON THE DIFFICULTY GRADE AND PIECING SKILLS OF TANGRAM. 2008. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160813215154756648063.
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