Dihedoku Puzzle 1
David Nacin (nacind@wpunj.edu), William Paterson University, Wayne, NJ
Fill in the squares with the elements of D
3
= hr, t | r
3
= t
2
= e, tr = r
2
ti so that no
group element appears twice in any row or column. The clues are the products in the
group when computed left to right or top to bottom inside individual cages.
t rt rt
r
t rt
2
r t
e
2
r t
2
r t
2
r t
2
r t
2
r
rt
e
t
t
t
Solutions can be found on p. 283.
http://dx.doi.org/10.4169/college.math.j.48.4.248
248 © THE MATHEMATICAL ASSOCIATION OF AMERICA