This interaction was developed as part of a Codes and Standards course aimed at welding inspectors, whilst working for an engineering training organisation. Candidates would be expected to know all of the relevant EN ISO codes and standards when they started working in industry.
In order to assess the candidates in this area, it was decided to create a short game loosely based on the UK TV gameshow Countdown.
You can try out the interaction for yourself below. For reference the answers are 9712, 17637, 15607, 4515 and 9606.