194 Domino Puzzles
pletes the circle. If the dominoes are laid out in the manner shown in our
illustration and I then break the line into four lengths of seven dominoes each,
it will be found th<.t the sum of the pips in the first group is 49, in the second
34, in the third 46, and in the fourth 39.
I want to play them out so that all the four groups of seven when the line
is broken shall contain the same number of pips. Can you find a way of
doing it?
- LES QUADRILLES
This old French puzzle will, I think, be found very interesting. It is required
to arrange a complete set of twenty-eight dominoes so as to form the figure
'--
r--;-
I · •. I · • I •
· • • • ••
· · • · · •
.-. .-• -. _. ••
- · • • •
· • .....· • · · · · · • .. · · • •.
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· • · · I • • • ·. · • •
· • · · · · · ·
.
- • ••• I ... - -.
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.. ...... • I. •
I--
t--;-
- ..
- • 1 •••••• 1 •..