Here is a 'KQRN vs knn' mate in 3 chess puzzle created by a computer program, Chesthetica, using the computational creativity approach which doesn't use any kind of traditional AI or even deep learning. 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.
Most changes to Chesthetica that result in a slightly higher 'version number' are simply to improve the interface, by the way. White has a decisive material advantage in this position but the winning sequence may not be immediately clear. If this one is too easy or too difficult for you, try out some of the others. Some of these problems may be trivial for you, especially if you're a club or master player but bear in mind that chess lovers can be found at all levels of play. So do check out some of the other problems. You can probably find something more to your taste.
