Computer-Generated Chess Problem 03021

Consider this 'KRBNN vs kp' four-move chess problem generated autonomously by a computer using the relatively new computational creativity approach called the 'DSNS'. There is no known limit to the quantity or type of compositions that can be generated.

8/8/5K2/8/5p1B/4NkN1/R7/8 w - - 0 1
White to Play and Mate in 4
Chesthetica v11.86 (Selangor, Malaysia)
Generated on 15 Aug 2020 at 5:19:02 PMSolvability Estimate = Moderate
Most changes to Chesthetica that result in a slightly higher 'version number' are simply to improve the interface, by the way. White has a decisive material advantage in this position but the winning sequence may not be immediately clear. Did you find this one interesting or have something else to say? Leave a comment below! Solving chess puzzles like this can also help improve your game.
Similar Chess Problems by Chesthetica: 01270, 01837, 01969, 02152, 02676.
Solution