brazil 2021 p6 is sus ... i solved it and apparently its 50 mohs . but 50 mohs is for the harder version which i also solved but wouldnt have solved if i hadnt seen the easier version first . but also its solution is really short so by infinite monkey it has to be less than 50 mohs . infact the easier version the solution is so simple that reading the solution it appears 20 mohs . by extension then the harder version which only needs like 3 more lines is about 30 mohs ? maybe add like 10 to get 40 cuz hard to notice that u have to reduce to easier version . i agre with 40 mohs kind of . cuz i took 7 hours but most of it was trying dumb stuff