Chelmsford reader Ivor Smith has been looking at the
puzzle possibilities with multiplication sums of the special type
NNN x NN = NNNN, where all nine digits 1 to 9 are present, once
each with no zero. He has discovered that if the left hand number
is 4, the position of the other digits can be deduced.
Here is the problem set out in conventional form, with the
interior workings shown as Xs. See if you can identify the A to H
series.
Find the solution online >>
