Computer-Generated Chess Problem 03056

Here is a 'KQRRN vs kr' mate in 4 chess construct composed autonomously by Chesthetica using the DSNS computational creativity approach which doesn't use any kind of traditional AI. Chesthetica has the creative ability to compose positions that may otherwise take centuries to arise in an actual game, if ever. There is also no proven limit to the quantity or type of legal compositions that can be automatically generated.

R7/8/Q3r3/4k3/8/8/4N3/1R2K3 w - - 0 1
White to Play and Mate in 4
Chesthetica v11.86 (Selangor, Malaysia)
Generated on 22 Sep 2020 at 8:52:20 PMSolvability Estimate = Difficult
If you notice an earlier version of Chesthetica listed with a newer problem, that simply means an earlier version may have been running on a different computer or OS user account. 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. Solving chess puzzles like this can be good for your health as it keeps your brain active. It may even delay or prevent dementia.
Solution