Computer-Generated Chess Problem 03766

A 'KRBPP vs krnpp' mate in four chess puzzle or problem (whichever you wish to call it) composed 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 artificial intelligence (AI). The largest complete endgame tablebase in existence today is for seven pieces (Lomonosov) which contains over 500 trillion positions, most of which have not and never will be seen by human eyes. This problem with 10 pieces goes even beyond that.

6k1/8/4pK1P/8/1B4p1/R3P1r1/8/1n6 w - - 0 1
White to Play and Mate in 4
Chesthetica v12.57 (Selangor, Malaysia)
Generated on 13 Jul 2022 at 8:01:25 AMSolvability Estimate = Moderate
Even with the same version number, each copy of Chesthetica 'evolves' and may perform somewhat differently over time. The material value is about equal. Did you find this one interesting or have something else to say? Leave a comment below! Feel free to copy the position into a chess engine and potentially discover even more variations.
Solution