Computer-Generated Chess Problem 02880

Here is a new 'KRRBN vs kr' chess construct composed autonomously by a computer program, Chesthetica, using the 'Digital Synaptic Neural Substrate' computational creativity approach which does not use any kind of deep learning. There is no known limit to the quantity or type of compositions that can be generated.

1N6/3KR3/5k2/6R1/B7/8/8/2r5 w - - 0 1
White to Play and Mate in 4
Chesthetica v11.64 (Selangor, Malaysia)
Generated on 1 Apr 2020 at 10:02:12 PMSolvability 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. White has a decisive material advantage in this position but the winning sequence may not be immediately clear. If this one is too easy or too difficult for you, try out some of the others. Feel free to copy the position into a chess engine and discover even more variations of the solution. Anyway, if standard chess isn't your thing, you might instead like SSCC.
A Similar Chess Problem by Chesthetica: 02508
Solution