The worst thing about that Kenny Rogers song The Gambler is the chorus. Doyle Brunson and his Super System collaborators managed 500-odd pages on when to hold’em and when to fold’em; Kenny managed one crap platitude. If he decided to write a song about chess, he would doubtless include a line about how you have to move your pieces around to win. However, his asinine lyric does beg an interesting question. Poker is a series of decisions, and the important ones are invariably difficult. How do you know what choice to make?

Usually when you ‘know’ what to do, it’s because you’ve been paying attention.