I have 2 examples approved:
Immortal Chess Position analyzes the key position in a famous game between Wei Yi and Bruzon Batista in 2015. Wei Yi sacrificed a rook for a pawn, and the evaluation engine put him almost a queen ahead after that move.
https://resources.wolframcloud.com/ExampleRepository/resources/Immortal-Chess-Position/
Find a Checkmate in 17 Moves starts with a given position and finds a sequence of moves that ends in checkmate.
https://resources.wolframcloud.com/ExampleRepository/resources/Find-a-Checkmate-in-17-Moves/