Computer-Generated Chess Problem 03868

Now, here we have a 'KQR vs kqrr' forced mate in four chess puzzle by Chesthetica using the DSNS computational creativity method. It does not use endgame tablebases, artificial neural networks, machine learning or any kind of typical AI. The chess board is a virtually limitless canvas for the expression of creative ideas (even by computer). 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.

1q5k/R7/6K1/8/4r3/7r/3Q4/8 w - - 0 1
White to Play and Mate in 4
Chesthetica v12.60 (Selangor, Malaysia)
Generated on 26 Sep 2022 at 1:09:11 AMSolvability Estimate = Moderate
Humans have been composing original chess problems for over a thousand years. Now a computer can do it too. Now, let's see what else there is to say. Give me a moment. Leave a comment below if you like. Solving chess puzzles like this is probably good for your health as it keeps your brain active. Nobody wants something like early-onset Alzheimer's. If you're bored of standard chess, though, why not try this?
Similar Chess Problems by Chesthetica: 02118, 02505.
Solution