By coincidence, I was exploring a couple of very related questions a few months ago: - [what are the commonest checkmating moves](https://chess.stackexchange.c

By coincidence, I was exploring a couple of very related questions a few months ago: - [what are the commonest checkmating moves](https://chess.stackexchange.com/questions/44959/what-are-the-commonest-checkmating-moves-in-the-lichess-or-similar-database https://chess.stackexchange.com/questions/44959/what-are-the...) - [Have any full rank-and-file piece specifications ever been required in a masters level game of chess?](https://chess.stackexchange.com/questions/44961/have-any-full-rank-and-file-piece-specifications-ever-been-required-in-a-masters https://chess.stackexchange.com/questions/44961/have-any-ful...) I think this question here is perhaps the more interesting one though, and it's so well explored.