Solids, stripes, the break, and when potting the 8 ball wins or loses the game: the rules of 8 ball pool without the arguments.
8 ball is played with a cue ball, seven solids (1 to 7), seven stripes (9 to 15) and the black 8 ball. Pot your entire group first, then legally pot the 8 ball to win.
One player breaks by striking the racked balls with the cue ball. If a ball drops on the break, the breaker usually keeps the table and may choose a group; otherwise the table is open and the first legally potted ball decides who is solids and who is stripes.
You keep shooting as long as you legally pot one of your own balls. Miss, or foul, and the turn passes. The rhythm of 8 ball is building runs: lining up your next shot before you take the current one.
A foul typically hands your opponent ball in hand: they place the cue ball anywhere. Against a decent player, that usually costs the game.
Clear your group, then pot the 8 to win. But be careful: potting the 8 early, or scratching while shooting the 8, loses instantly. More games are thrown away on the black than won on it.
Play 8 ball pool online free against real opponents, or set up a match against a friend.