Computer-Generated Chess Problem 03310

Consider this 'KRRBN vs krb' mate in 3 chess construct composed autonomously by a computer program, Chesthetica, using the approach known as the DSNS from the sub-field of AI, computational creativity. Depending on the type and complexity of the problem desired, a single instance of Chesthetica running on a desktop computer can probably generate anywhere between one and ten problems per hour.

6k1/5rbN/3R3R/3B4/8/8/8/1K6 w - - 0 1
White to Play and Mate in 3
Chesthetica v12.30 (Selangor, Malaysia)
Generated on 4 May 2021 at 6:24:15 AMSolvability Estimate = Difficult
Humans have been composing original chess problems for over a thousand years. Now a computer can do it too. White is ahead by a knight and a rook. Why not time yourself how long it took you to solve this? Collectively, these puzzles are intended to cater to players of all levels. If you're bored of standard chess, though, why not try this?
A Similar Chess Problem by Chesthetica: 01345
Solution