A new if not unique KQRNP vs krpp mate in 4 chess construct composed autonomously by a computer program, Chesthetica, using the 'DSNS' computational creativity approach which does not use any kind of machine or deep learning. There is also no proven limit to the quantity or type of legal compositions that can be automatically generated.
White to Play and Mate in 4
Chesthetica v11.62 (Selangor, Malaysia)
Generated on 18 Feb 2020 at 8:14:42 PM
Composing a chess puzzle or problem requires creativity and it's not easy even for most humans. Everything composed by Chesthetica is original. Try to solve this puzzle. Do try some of the others in the series as well before you go. Solving chess puzzles like this is probably good for your health as it keeps your brain active. Nobody wants something like early-onset Alzheimer's.
A Similar Chess Problem by Chesthetica: 01320