Another one from Mark: one of the most famous games in chess, the 1858 Opera Game. Its enduring appeal lies in Paul Morphy’s elegant checkmate sequence including a queen sacrifice, but nearly 170 years on it also serves as an object lesson in the advantages of rapid piece development and the risks of under development: black finishes with a bishop and rook which have played no part at all in the game, negating their notional material advantage over white. There are plenty of helpful online reviews of the full game, which is only 17 moves long.
