27
A BROKEN TALE
The deil jumped
the clouds so high
That he bounded almost
right
the sky.
the trees
gates and fields and
He dodged with his tail
dragging
all these,
But, alas! made a terrible
bl,
For a twist in his tail
a rail,
hooked
And broke that appendage
as.
No. XXXVII.—LEAP-FROG
Place on a chess or draught-board three white men on the squares marked a, and three black men on the squares marked b.
| a | a | a | b | b | b |
The pieces marked a can only move one square at a time, from left to right, and those marked b one square at a time, from right to left, on to unoccupied squares; and any piece can leap over one of the other colour, on to an unoccupied square. What is the least number of moves in which the positions of the white and the black men can be reversed, so that each square now occupied by a white is occupied by a black, and each now occupied by a black holds a white piece?