205.--THE SIX SHEEP-PENS.

[Illustration]

Here is a new little puzzle with matches. It will be seen in the

illustration that thirteen matches, representing a farmer's hurdles,

have been so placed that they enclose six sheep-pens all of the same

size. Now, one of these hurdles was stolen, and the farmer wanted still

to enclose six pens of equal size with the remaining twelve. How was he

to do it? All the twelve matches must be fairly used, and there must be

no duplicated matches or loose ends.

Amusements in Mathematics · 第 235 / 970 题