Take a look at this 'KRRNPPP vs kqrbnpp' mate in 4 chess problem generated autonomously by Chesthetica using the fairly new computational creativity approach called the 'DSNS'. You can learn more about the DSNS here. This position contains a total of 14 pieces. The largest endgame tablebase in existence today is for 7 pieces (containing over 500 trillion positions anyway) which means the problem could not have been taken from it regardless.
White to Play and Mate in 4
Chesthetica v12.30 (Selangor, Malaysia)
Generated on 27 May 2021 at 10:00:49 AM
Most changes to Chesthetica that result in a slightly higher 'version number' are simply to improve the interface, by the way. White has a rook and a pawn for Black's bishop and queen. 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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