Hi Norbert,
I was thinking,
Maybe if the first code in series is guessed by someone to fill it in,
Then if the first and second are submitted correctly to fill the second one in.
The reason for this is it will stop newcomers wasting their time uploading screenshot entries unless they have something that is potentially valid.
I know you wanted to make it interesting by having people guess the first number X number of times, then the second before revealing them;
Though people lose interest real quick after making the effort to upload 5+ pics without any progress on what part of the code should be.
I think you will have a lot more interest in the competition here on EF and on the field in game if the code is revealed as people hit a right combo numbers.
ie. People will be saying what is the combo upto now for Norbets sweating comp.
Norberts comp ? What is that all about ?
Its on the EntropiaForums you should have a look
And people will submit new entries if they have at least the first one or first two (if revealed upto that point) already.