The first ball you pocket decides your balls: evens (2–14) or odds (3–15).
Break from the D. One parity dropping gives you that group and another shot; both keep the table open (the lowest of the rarer one goes down too, to even it out) and pass the turn.
Hit one of your balls first. Pocketing one keeps your turn.
A foul (scratch, missing every ball, hitting or pocketing an opponent's ball) loses the turn and pockets the opponent's lowest ball. After a scratch they place the cue ball in the D.
Clear your balls, then sink the 1, the castigo, to win. The castigo early or on a foul loses.