per solutori più che abili → for expert puzzlers, for seasoned solvers, for seasoned solvers only, only for the smartest of the smart

[spiros]

per solutori più che abili → for expert puzzlers, for seasoned solvers, for seasoned solvers only, only for the smartest of the smart

για δυνατούς λύτες → per solutori più che abili

https://www.translatum.gr/forum/index.php?topic=463846.0
https://forum.wordreference.com/threads/per-solutori-pi%C3%B9-che-abili.3237786/