Computer-Generated Chess Problem 02837

Now, this is a 'KRBNNP vs kq' chess puzzle or problem (whichever you wish to call it) composed by the prototype computer program, Chesthetica, using the approach known as the DSNS from the sub-field of AI, computational creativity. The program can compose problems that may otherwise take decades, centuries or even longer for human composers to think of, or to arise in a real game. You can learn more about the DSNS here. The largest endgame tablebase in existence today is for 7 pieces (Lomonosov) which contains over 500 trillion positions, most of which have not been seen by human eyes. This problem with 8 pieces goes even beyond that and was therefore composed without any such help.

1k3q2/3B4/P2N4/8/1N6/7R/K7/8 w - - 0 1
White to Play and Mate in 5
Chesthetica v11.62 (Selangor, Malaysia)
Generated on 8 Feb 2020 at 3:29:23 AMSolvability Estimate = Difficult
Some of the earliest chess problems by humans are over 10 centuries old but original ones by computer are very recent. What was the machine 'thinking' when it came up with this? Leave a comment below, if you like. Some of these problems may be trivial for you, especially if you're a club or master player but bear in mind that chess lovers can be found at all levels of play. So do check out some of the other problems. You can probably find something more to your taste.
Solution