53.--_The Royal Gardens._

[Illustration]

This puzzle must have struck many readers as being absolutely impossible.

The jester said: "I had, of a truth, entered every one of the sixteen

gardens once, and never more than once." If we follow the route shown in

the accompanying diagram, we find that there is no difficulty in once

entering all the gardens but one before reaching the last garden

containing the exit B. The difficulty is to get into the garden with a

star, because if we leave the B garden we are compelled to enter it a

second time before escaping, and no garden may be entered twice. The

trick consists in the fact that you may enter that starred garden without

necessarily leaving the other. If, when the jester got to the gateway

where the dotted line makes a sharp bend, his intention had been to hide

in the starred garden, but after he had put one foot through the doorway,

upon the star, he discovered it was a false alarm and withdrew, he could

truly say: "I entered the starred garden, because I put my foot and part

of my body in it; and I did not enter the other garden twice, because,

after once going in I never left it until I made my exit at B." This is

the only answer possible, and it was doubtless that which the jester

intended.

The Canterbury Puzzles, and Other Curious Problems · 第 214 / 286 题