536 Puzzles and Curious Problems

(Elliott) #1
Point Alignment Puzzles 167

is to remove only three of these pegs to different holes, so that the ten shall
form five rows with four pegs in every row. Which three would you move,
and where would you place them?



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  1. FIVE LINES OF FOUR


The illustration shows how ten counters may be placed on the points of the
diagram where the lines intersect, so that they form five straight lines with
four counters in every line, as indi-
cated by the dotted lines. Can you
find a second way of doing this?
Of course a mere reversal or reflec-
tion of the given arrangement is not
considered different-it must be a
new scheme altogether, and of course
you cannot increase the dimensions
of the diagram or alter its shape.


:."


  1. DEPLOYING BATILESHIPS


.-: ...... ,:: ::::)-
.......

Ten battleships were anchored in the form shown on page 168. The puzzle
is for four ships to move to new positions (the others remaining where they

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