Computer-Generated Chess Problem 02877

Here is a new 'KRRBNN vs kbnnp' chess puzzle or problem (whichever you wish to call it) composed by Chesthetica using the Digital Synaptic Neural Substrate (DSNS) computational creativity approach. It doesn't use endgame tablebases, neural networks or any kind of machine learning found in traditional AI. You can learn more about the DSNS here. Any chess position with this many pieces could not possibly have been obtained from known endgame databases. Chesthetica is therefore the real McCoy.

8/8/nB4N1/2p5/2bN4/1RR5/3K3k/7n w - - 0 1
White to Play and Mate in 4
Chesthetica v11.64 (Selangor, Malaysia)
Generated on 28 Mar 2020 at 10:46:37 AMSolvability Estimate = Difficult
Even with the same version number, each copy of Chesthetica 'evolves' and performs somewhat differently over time. Chesthetica composes everything autonomously (no human intervention) and even chooses the main line of the solution to show you. Did you find this one interesting or have something else to say? Leave a comment below! Take some time to study the analysis and you might appreciate the puzzle a little more.
Solution