Mistake for position/1/4/5 ?

[PiR43]

It seems this problem has no solution: https://chess-endgame-trainer.web.app/position/1/4/5 Perhaps not a checkmate but a draw ?

[j-krl]

There's quite a few problems where the hint gives unfeasible mate. Looks like the issue is bigger than just one problem.

[supertorpe]

The positions were obtained from a database with the target of each position (draw or mate). It appears that this database is not 100% reliable. Therefore, I started to develop a program to verify each and every one of the positions (against tablebases when possible, and with stockfish in all other cases) to check: 1) if the target should be draw or mate and 2) the minimum number of movements required to achieve the target.