A challenge Karlberg hosted in his discord where you place a single block each, in the end 134 people participated.
Karlberg tried to validate this map but didnt manage. So I decided to take the responsibillity to validate this bad boy with the help of TheNexusAce:D
Good luck if you decide to try and beat this well calculated map.
If you need help with the route, TheNexusAce made a sketch in which order you should take the cp.
imgur.com/a/EkJwiyX