Consider this 'KQB vs kqq' mate in 4 chess puzzle created by a computer program, Chesthetica, using the approach known as the DSNS from the sub-field of AI, computational creativity. The program can compose problems that may otherwise take decades, centuries or even longer for human composers to think of, or to arise in a real game. 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 (e.g. composing something original using only a rook vs. five pawns). Read more about it on ChessBase.
White to Play and Mate in 4
Chesthetica v10.82 : Selangor, Malaysia
2018.11.4 1:19:38 PM
Chesthetica, especially if running on multiple computers or operating system user accounts, is capable of generating far too many compositions than can be published in a timely fashion here. The newer ones will therefore only be published some time later. This is why the composition date above does not match today's date. White actually has less material than Black yet still wins. The white army is down by about 6 (Shannon) pawn units in value. Try to solve this as quickly as you can. If you like it, please share with your friends. Note that not all the chess problems are like this. They cover quite the spectrum of solving ability and there are thousands published already.
Main Line of the Solution (Skip to 0:35)
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