Talus Tumble - How to play!

About Talus Tumble, from BoardGameGeek:

Players start with identical sets of six stones in different shapes and sizes. Players take turns rolling a 12-sided die, which may designate the stone to be placed, or require the removal of stones, or require that a stone or stones be placed in a certain way, etc. The first player to place all of his or her stones without causing a tumble wins the round and receives a point for each stone that the other players still have. Play to 21 points.