Computer-Generated Chess Problem 03132

A 'KQRN vs kqbp' four-move chess construct composed autonomously by a computer using the DSNS computational creativity approach which doesn't use any kind of traditional AI. Chesthetica has the creative ability to compose positions that may otherwise take centuries to arise in an actual game, if ever. Depending on the type and complexity of the problem desired, a single instance of Chesthetica running on a desktop computer can probably generate anywhere between one and ten problems per hour. The largest endgame tablebase in existence today is for 7 pieces (Lomonosov) which contains over 500 trillion positions, most of which have not and never will be seen by human eyes. This problem with 8 pieces goes even beyond that and was therefore composed without any such help whatsoever.

1K6/8/8/kp6/4b3/2N5/8/1q4QR w - - 0 1
White to Play and Mate in 4
Chesthetica v12.18 (Selangor, Malaysia)
Generated on 26 Dec 2020 at 9:12:13 AMSolvability Estimate = Difficult
If you notice any version of Chesthetica 'skipped' from one problem to the next, that simply means additional (minor) changes were made to the program before it was set to run again. White is significantly ahead in material. Do share and try out some of the others too. Solving chess puzzles like this can also help improve your game.
A Similar Chess Problem by Chesthetica: 00211
Solution