Computer-Generated Chess Problem 02190

A new if not unique KRBBNN vs kbbnpp mate in 4 chess puzzle or problem (whichever you wish to call it) composed by the prototype computer program, Chesthetica, using the Digital Synaptic Neural Substrate (DSNS) computational creativity approach. It doesn't use endgame tablebases, neural networks or any kind of machine learning found in traditional AI. 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.

7B/2N4p/2B3R1/3K1k2/6b1/b4p2/2N5/1n6 w - - 0 1
White to Play and Mate in 4
Chesthetica v10.67 : Selangor, Malaysia
2018.7.4 8:50:48 PM

These chess puzzles are published in order based on the composition date and time stamp above. Due to the sheer volume of compositions generated, the latest ones may therefore only be published later on. White is over a rook's worth in material but the precise win in this position still needs to be found. Try to solve this puzzle. Do try some of the others in the series as well before you go. Over time, the tactics you see in these puzzles will help you improve your game.

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