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"[[File:Hashi-01-sam.jpg|200px|thumb|right|'''Hashi''' example, From: 23rd WPC Instrucion Booklet © 2014, UK Puzzle Association]] '''Hashi'''(又名Bridges, 日文名:橋をかけろ, 待定中文名:數橋) is a type of [[logic puzzle]] published by [[Nikoli]]. ==Rules / 规则== Join circled numbers with horizontal or vertical lines. Each number must have as many lines connected to it as specified by its value. No more than two lines may join any pair of numbers. No lines may cross. The finished layout must allow you to travel from any number to any other number just by following one or more lines 在有數字的圓圈之間以直向或橫向的線連接。每個圓圈會連接到的線數量就是它內部的那個數字。兩個圓圈之間相連的線最多兩條, 且沒有線會交叉跨越。最後的答案必須能讓你可以從任何圓圈以線走到另外的任意圓圈(譯注: 即所有的圓圈都可以連在一起) ==Solving techniques / 解题技巧== *[http://sudoku.baike.com/article-120387.html] 數獨百科-數橋 *角上的4, 一定往兩方向各延伸兩條, 而角上的3, 則是往兩方向各先延伸一條, 還剩一條之後再判斷。同理, 邊上的5和6, 中間的7和8也是做如此思維。 *能確定的線先連, 即使你不確定它是一條或兩條, 因為線連完後往往會有隔絕的效果, 可以減少掉其他圓圈連接的可能性。 *最後是連完之後要能全部接在一起, 所以要是連完後會造成相連的區域自成一塊, 那就一定是錯的。 *若不確定是兩種解法哪一種對, 但是其中一種解法, 會造成某一區有兩種橋的放法都可以, 那它一定就是錯的。 [[File:Hashi-01-sol.jpg|200px|thumb|right|'''Hashi''' example solution, From: 23rd WPC Instrucion Booklet © 2014, UK Puzzle Association]] ==History / 历史== *Hashiwokakero first appeared in Puzzle Communication Nikoli in issue #31 (September 1990), although an earlier form of the puzzle appeared in issue #28 (December 1989). *曾出現於第23屆WPC Round 3 第29題 ==See also / 相关词条== *To be edited ==References / 参考资料== *[http://www.uk2014.org/] 23rd WPC 官網 ==External links / 拓展阅读== *[http://www.nikoli.co.jp/en/puzzles/hashiwokakero.html] Hashi 介紹(Nikoli) *[https://en.wikipedia.org/wiki/Hashiwokakero] Hashi 的維基百科 *[http://www.puzzle-bridges.com/] Bridges [[Category:Puzzlelist]] [[Category:Connect_by_Lines]] [[Category:Place_Objects]] [[Category:Nikoli]] [[Category:Classic_Puzzle]]
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