What we have here is a 'KQBBP vs kqbnp' mate in 4 chess construct composed autonomously by Chesthetica using the fairly new computational creativity approach called the 'DSNS'. Chesthetica is able to generate three-movers, four-moves, five-movers and study-like constructs and also compose problems using specific pieces types fed into it (such as using only a queen vs. rook and knight). Read more about it on ChessBase. Any chess position with this many pieces could not possibly have been obtained from known endgame databases. Chesthetica is therefore the real McCoy.
White to Play and Mate in 4
Chesthetica v12.18 (Selangor, Malaysia)
Generated on 4 Jan 2021 at 7:43:16 AM
The material value is about equal. It looks like the solution might involve a pawn promotion. Leave a comment below, if you like. Some of these problems may be trivial for you, especially if you're a club or master player but bear in mind that chess lovers can be found at all levels of play. So do check out some of the other problems. You can probably find something more to your taste.
Solution
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