What is ahab chess

i don't exactly understand the rules, and im bad at english plz use real english and not paragraph english

Paragraph English is real English. But for layman's terms... you pick a piece, other than the queen, and that is the piece that your opponent has to capture to win

ohk ty

The peice you pick can also not be the king.

or it can depending on the version you play

No, it never can!

No it can in one of the versions. Greensleeves is the version without it, and even he's said that he's open to the king being an option, just for another layer of strategy and reverse psychology.

oh ok