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Take a look at this 'KRBNN vs krp' mate in 4 chess puzzle created by Chesthetica using the relatively new computational creativity approach called the 'DSNS'. Chesthetica is able to generate mates in 3, mates in 4, mates in 5, study-like constructs and also compose problems using specific combinations of pieces fed into it (such as using only a queen vs. rook and knight). Read more about it on [ChessBase](https://en.chessbase.com/tagged?tag=Chesthetica). Any chess position over 7 pieces could not possibly have been derived from an endgame tablebase which today is limited to 7 pieces.
<center>![](https://cdn.steemitimages.com/DQmPhgJy8uizxMez5DnrExxWYgCNs528uSfqAtYY8FGmnfu/image.png)</center>
<center>[8/3R4/1B6/5rN1/8/3p4/8/1N3k1K w - - 0 1](https://lichess.org/analysis/standard/8/3R4/1B6/5rN1/8/3p4/8/1N3k1K_w_-_-_0_1)
***White to Play and Mate in 4**
Chesthetica v11.02 (Selangor, Malaysia)
Generated on 18 Feb 2019 at 12:54:56 PM*</center><center>Solvability Estimate = Moderate</center>
Chess puzzles are ancient. Some are over a thousand years old but only in the 21st century have computers been able to compose original ones on their own like humans can. Everything composed by Chesthetica is original. Try to solve this as quickly as you can. If you like it, please share with others. Take some time to study the analysis and you might appreciate the puzzle a little more.<center>
**Main Line of the Solution (Skip to 0:35)**</center>https://www.youtube.com/watch?v=48HWi4V1_fg<center>
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