Moving Counter Puzzles 137and so on until each warder captures his prisoner. If one warder makes
a capture, both he and his captive are out of the game, and the other pair
continue alone.
Thus (taking only one side, just for illustration of the moves), the warder
on the left may go to F, then the prisoner to D, then the warder to E, then
the prisoner to A, the warder to B, the prisoner to D, and so on. You may
come to the conclusion that it is a hopeless chase, but it can really be done if
you use a little cunning.
- GRASSHOPPERS' QUADRILLE
It is required to make the white
men change places with the black men
in the fewest possible moves. There is
no diagonal play or captures. The
white men can only move to the right
or downwards, and the black men to
the left or upwards, but they may
leap over one of the opposite color, as
in checkers. It is quite easy when once
you have hit on the method of
solution.