# Solution

(related to Problem: Plates And Coins)

Number the plates from $1$ to $12$ in the order that the boy is seen to be going in the illustration. Starting from $1,$ proceed as follows, where "$1$ to $4$" means that you take the coin from plate No. $1$ and transfer it to plate No. $4$: $1$ to $4,$ $5$ to $8,$ $9$ to $12,$ $3$ to $6,$ $7$ to $10,$ $11$ to $2,$ and complete the last revolution to $1,$ making three revolutions in all. Or you can proceed this way: $4$ to $7,$ $8$ to $11,$ $12$ to $3,$ $2$ to $5,$ $6$ to $9,$ $10$ to $1.$ It is easy to solve in four revolutions, but the solutions in three are more difficult to discover.

This is "The Riddle of the Fishpond" (No. $41,$ Canterbury Puzzles) in a different dress.

Github: non-Github:
@H-Dudeney

### References

#### Project Gutenberg

1. Dudeney, H. E.: "Amusements in Mathematics", The Authors' Club, 1917

This eBook is for the use of anyone anywhere in the United States and most other parts of the world at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this edition or online at http://www.gutenberg.org. If you are not located in the United States, you'll have to check the laws of the country where you are located before using this ebook.