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The Number Dumber (also called Gem Puzzle, Boss Puzzle, Game of Fifteen, Mystic Square and many others) is a classical and most famous historic sliding puzzle that consists of a frame of numbered square tiles in random order with one tile missing. This is a classical problem for modeling algorithms involving heuristics.

History (as per Wikipedia):-

This puzzle was "invented" by Noyes Palmer Chapman, a postmaster in Canastota, New York, who is said to have shown friends, as early as 1874. Copies of the improved Fifteen Puzzle made their way to Syracuse, New York by way of Noyes' son, Frank, and from there, via sundry connections, to Watch Hill, RI, and finally to Hartford (Connecticut), where students in the American School for the Deaf started manufacturing the puzzle and, by December 1879, selling them both locally and in Boston, Massachusetts.

Matthias Rice, who ran a fancy woodworking business in Boston, started manufacturing the puzzle sometime in December 1879 and convinced a "Yankee Notions" fancy goods dealer to sell them under the name of "Gem Puzzle".

The game became a craze in the U.S. in February 1880, Canada in March, Europe in April, but that craze had pretty much dissipated by July.

Sam Loyd claimed from 1891 until his death in 1911 that he invented the puzzle. 

Some later interest was fuelled by him by offering a $1,000 prize for anyone who could provide a solution for achieving a particular combination specified by Loyd, namely reversing the 14 and 15. This was impossible, as had been shown over a decade earlier by Johnson & Story (1879), as it required a transformation from an even to an odd combination.

About this version of game:-

This Version of game is with 9 goals, each with different number sequence. Your task is to achieve that sequence in minimum number of moves. Tile can be moved by sliding it to empty space. Try to solve all the goals in minimum possible moves. Time is no concern in this version, take your own time to solve the puzzle. Keep posting your records time to time. The last goal is impossible task but try to get it as much as possible.

(This is ad supportive version of the game, you may get some ads at top of the screen when online.)
阿瓜数（也称为宝石拼图，老板益智游戏十五，神秘的广场和许多其他人）是一个经典和最著名的历史滑动拼图组成的一帧以随机顺序编号广场砖一瓦失踪。这是一个经典的问题涉及启发式算法建模。

历史（每维基百科）： - 

这个难题被“发明”由诺伊斯帕尔默查普曼，邮政局长卡尼亚斯托，纽约，谁是说显示的朋友，早在1874年。改进的15个谜副本诺伊斯'儿子，弗兰克的方式，并从那里飞往锡拉丘兹，纽约，通过杂物连接，观看山，RI，终于哈特福德（康涅狄格州），其中在美国的学生聋哑学校开始制造难题，由1879年12月，出售他们在本地和在马萨诸塞州波士顿。

马蒂亚斯·赖斯，谁跑在波士顿看中木工业务，开始生产的难题，1879年在12月的某个时候说服“洋基概念”新奇商品经销商卖给他们的“宝​​石拼图”的名义下。

本场比赛成为了在美国的热潮在1880年，加拿大在3月，4月在欧洲，但这种热潮几乎七月消散。

萨姆·劳埃德声称从1891年直到他去世于1911年，他发明的难题。

后来的一些利益，他的带动下，通过提供1000美元的奖金，任何人都可以提供一个解决方案，实现由劳埃德指定的特定组合，即扭转了14日和15。这是不可能的，已显示超过十年由约翰逊故事（1879），因为它需要一个从一个甚至一个奇怪的组合。

关于这个版本的游戏： - 

此版本的游戏是9个进球，每一个不同的数字序列。你的任务是实现这一最低数量的动作序列。瓷砖可以移动，通过滑动它空。尝试在最低可能的行动来解决所有的目标。时间是在这个版本中，没有关心自己的时间来解决这一难题。继续张贴您的记录时间。最后的目标是不可能完成的任务，但尽可能设法得到它。

（这是广告支持的版本的游戏，你可能会得到一些广告时，在屏幕上方的在线）。


Number Dumber

Number Dumber的最新版本

其他版本