## THE THREE SHEEP.

(

Chessboard Problems)

A farmer had three sheep and an arrangement of sixteen pens, divided off

by hurdles in the manner indicated in the illustration. In how many

different ways could he place those sheep, each in a separate pen, so

that every pen should be either occupied or in line (horizontally,

vertically, or diagonally) with at least one sheep? I have given one

arrangement that fulfils the conditions. How many others can you find?

Mere reversals and reflections must not be counted as different. The

reader may regard the sheep as queens. The problem is then to place the

three queens so that every square shall be either occupied or attacked

by at least one queen--in the maximum number of different ways.

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THE FIVE DOGS PUZZLE.
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THE FORTY-NINE COUNTERS.