Talk:Henry Ernest Dudeney/Puzzles and Curious Problems/108 - The Nine Digits/Solution

More solutions
This appeared in a local maths competition for primary students a few years ago.

Me and my student were unable to solve it, so I created a program to find the solution(s):

Try it online! (The solutions are not ordered by size.)

Turns out there are $87$. Have fun. --RandomUndergrad (talk) 13:48, 12 March 2022 (UTC)


 * Thank you for this. It has all been documented. This is what we like to see. --prime mover (talk) 14:11, 12 March 2022 (UTC)