Computer-Generated Chess Problem 03949

Consider this 'KRRN vs krp' four-move chess problem generated autonomously by a computer using the fairly new computational creativity approach known as the DSNS (Digital Synaptic Neural Substrate). 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.

7r/4Nk2/2R4p/8/R2K4/8/8/8 w - - 0 1
White to Play and Mate in 4
Chesthetica v12.64 (Selangor, Malaysia)
Generated on 9 Dec 2022 at 2:21:11 PMSolvability Estimate = Difficult
Some of the earliest chess problems by humans are over 10 centuries old but original ones by computer are very recent. White has a knight and a rook for Black's pawn. Do share and try out some of the others too. Solving chess puzzles like this can also help improve your game.
Solution