THE GRAND LAMA'S PROBLEM.
(
Chessboard Problems)
Once upon a time there was a Grand Lama who had a chessboard made of
pure gold, magnificently engraved, and, of course, of great value. Every
year a tournament was held at Lhassa among the priests, and whenever any
one beat the Grand Lama it was considered a great honour, and his name
was inscribed on the back of the board, and a costly jewel set in the
particular square on which the checkmate had been given. After this
sovereign pontiff had been defeated on four occasions he died--possibly
of chagrin.
[Illustration:
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Now the new Grand Lama was an inferior chess-player, and preferred other
forms of innocent amusement, such as cutting off people's heads. So he
discouraged chess as a degrading game, that did not improve either the
mind or the morals, and abolished the tournament summarily. Then he sent
for the four priests who had had the effrontery to play better than a
Grand Lama, and addressed them as follows: "Miserable and heathenish
men, calling yourselves priests! Know ye not that to lay claim to a
capacity to do anything better than my predecessor is a capital offence?
Take that chessboard and, before day dawns upon the torture chamber, cut
it into four equal parts of the same shape, each containing sixteen
perfect squares, with one of the gems in each part! If in this you fail,
then shall other sports be devised for your special delectation. Go!"
The four priests succeeded in their apparently hopeless task. Can you
show how the board may be divided into four equal parts, each of
exactly the same shape, by cuts along the lines dividing the squares,
each part to contain one of the gems?
Answer:
The method of dividing the chessboard so that each of the four parts
shall be of exactly the same size and shape, and contain one of the
gems, is shown in the diagram. The method of shading the squares is
adopted to make the shape of the pieces clear to the eye. Two of the
pieces are shaded and two left white.
The reader may find it interesting to compare this puzzle with that of
the "Weaver" (No. 14, _Canterbury Puzzles_).
[Illustration: THE GRAND LAMA'S PROBLEM.
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