The Canterbury Puzzles, and Other Curious ProblemsDudeney, Henry Ernest
Science
The Canterbury Puzzles, and Other Curious Problems
Dudeney, Henry Ernest
Puzzles; Riddles
The diagram will show how this puzzle is to be solved. It is the only way
within the conditions laid down. Starting at the pudding with holly at
the top left-hand corner, we strike out all the puddings in twenty-one
straight strokes, taste the steaming hot pudding at the end of the tenth
stroke, and end at the second sprig of holly.
Here we have an example of a chess rook's path that is not re-entrant,
but between two squares that are at the greatest possible distance from
one another. For if it were desired to move, under the condition of
visiting every square once and once only, from one corner square to the
other corner square on the same diagonal, the feat is impossible.
There are a good many different routes for passing from one sprig of holly
to the other in the smallest possible number of moves--twenty-one--but I
have not counted them. I have recorded fourteen of these, and possibly
there are more. Any one of these would serve our purpose, except for the
condition that the tenth stroke shall end at the steaming hot pudding.
This was introduced to stop a plurality of solutions--called by the maker
of chess problems "cooks." I am not aware of more than one solution to
this puzzle; but as I may not have recorded all the tours, I cannot make a
positive statement on the point at the time of writing.
[Illustration]
60.--_Under the Mistletoe Bough._
Everybody was found to have kissed everybody else once under the
mistletoe, with the following additions and exceptions: No male kissed a
male; no man kissed a married woman except his own wife; all the
bachelors and boys kissed all the maidens and girls twice; the widower
did not kiss anybody, and the widows did not kiss each other. Every kiss
was returned, and the double performance was to count as one kiss. In
making a list of the company, we can leave out the widower altogether,
because he took no part in the osculatory exercise.
7 Married couples 14
3 Widows 3
12 Bachelors and Boys 12
10 Maidens and Girls 10
Total 39 Persons
Now, if every one of these 39 persons kissed everybody else once, the
number of kisses would be 741; and if the 12 bachelors and boys each
kissed the 10 maidens and girls once again, we must add 120, making a
total of 861 kisses. But as no married man kissed a married woman other
than his own wife, we must deduct 42 kisses; as no male kissed another
male, we must deduct 171 kisses; and as no widow kissed another widow, we
must deduct 3 kisses. We have, therefore, to deduct 42+171+3=216 kisses
from the above total of 861, and the result, 645, represents exactly the
number of kisses that were actually given under the mistletoe bough.
61.--_The Silver Cubes._
Public-domain text, read in full here on John Shaqi.
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