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Riverside Trail 过桥小路

Riverside Trail曾出现于第23届WPC Round 2 第3题。

规则

Riverside Trail,23rd WPC Instrucion Booklet © 2014, UK Puzzle Association
Riverside Trail,23rd WPC Instrucion Booklet © 2014, UK Puzzle Association
规则
从表格左上角的旗帜开始, 画一条环状的路径回到原点。这条路径必须经过表格中除了树以外的每个格子。而路径本身只能直向或横向连接, 且不能碰到或跨越自己。
河(粗线)本身除了有桥在其上之外, 视为一种阻挡, 路径不得跨越。另外, 不一定要通过所有的桥。
Rule
Draw a trail which starts and ends at the flag in the top left corner of the grid and visits every cell except for those occupied by a tree. The trail moves orthogonally between the centre of cells and does not touch or cross itself. The river, denoted by a bold line, can only be crossed at the given bridges. There is no requirement to cross every bridge.
Riverside Trail答案,23rd WPC Instrucion Booklet © 2014, UK Puzzle Association
Riverside Trail答案,23rd WPC Instrucion Booklet © 2014, UK Puzzle Association

解题技巧

  • 只要把河当成边, 有桥的地方稍微留意一下可以走, 其他和原题型相较没有什么特别技巧。

参考资料