Computer-Generated Chess Problem 03160

Here is a new 'KQBP vs krppp' mate in 4 chess problem generated autonomously by a computer program, Chesthetica, using the Digital Synaptic Neural Substrate (DSNS) computational creativity approach. It doesn't use endgame tablebases, deep learning or any kind of traditional AI. You can learn more about the DSNS here. The position below contains 9 pieces which means it simply could not have been derived even from an existing endgame tablebase which is presently limited to 7 pieces.

4K3/4B3/3p4/1Q6/5kp1/6p1/r2P4/8 w - - 0 1
White to Play and Mate in 4
Chesthetica v12.19 (Selangor, Malaysia)
Generated on 6 Jan 2021 at 8:46:58 AMSolvability Estimate = Difficult
Chess puzzles are ancient. Some are over a thousand years old but only in the 21st century have computers been able to compose original ones on their own like humans can. What was the machine 'thinking' when it came up with this? Leave a comment below, if you like. Solving chess puzzles like this can be good for your health as it keeps your brain active. It may even delay or prevent dementia. Anyway, if standard chess isn't your thing, you might instead like SSCC.
Solution