Alternative Chess Test (ACT) - is series of chess tests that mostly contains tricky endgame puzzles and difficult mates.

Download:
(https://www.mediafire.com/file/ir89pzfo6afh5bs/Alternative_Chess_Test_5_07.06.2022.zip/file)

It is probably the last new test from the ACT series. There will be no ACT6, instead of that I will release a refreshed ACT test with the hardest positions selected from ACT1-B, ACT2, ACT3, ACT4, ACT5 together with some new positions.