Glossary of curling Glossary of curling This is a glossary of terms in curling. During a game, sweepers might call out numbers. These numbers indicate how far the sweepers think the rock in play will travel. This system is relatively new to the game and is often attributed to the Randy Ferbey rink since they were the first major team to use the system, but it is not known whose idea it originally was. 1 to 3 indicates a rock in the free guard zone, 4 to 6 the rings in front of the tee line, 7 being on the button, and 8
Curling four rocks, known as the "three-rock rule" and "four-rock rule" respectively). This rule, a relatively recent addition to curling, was added in response to a strategy of "peeling" opponents' guard stones (knocking them out of play at an angle that caused the shooter's stone to also roll out of play, leaving no stones on the ice). A team in the lead would often employ this strategy during the game. By knocking all stones out, the opponents could at best score one point (if they had the hammer). Alternatively, the team with the hammer could peel rock after rock, which would