How it plays
Everyone chooses a numbered card from a hand of ten and reveals it together. Resolve the cards from lowest to highest, adding each to the row whose last card is the closest lower number. You cannot choose a different row because it looks safer.
Adding a sixth card makes you collect the preceding five as penalties. A card below every row instead lets you choose which row to take. Count bullheads on collected cards, rather than the number of cards: some hurt much more than others.
Decisions you’ll make
A card that fits neatly now may land somewhere else after lower cards are resolved. Estimate what other hands could change before yours arrives.
Playing below every row deliberately can be worthwhile when one row has few bullheads. Taking a small known penalty may beat leaving an awkward low card until every option is expensive.
Learning the game
Light: the main hurdle is understanding forced placement and the two ways to collect a row.