What we have here is a 'KQBNN vs kr' mate in 4 chess problem generated by Chesthetica using the relatively new computational creativity approach called the 'DSNS'. You can learn more about the DSNS here.
White to Play and Mate in 4
Chesthetica v11.64 (Selangor, Malaysia)
Generated on 16 Apr 2020 at 2:14:34 AM
Even with the same version number, each copy of Chesthetica 'evolves' and performs somewhat differently over time. White has a decisive material advantage in this position but the winning sequence may not be immediately clear. Try to solve this puzzle. Do try some of the others in the series as well before you go. Collectively, these puzzles are intended to cater to players of all levels.
Solution
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