Grammar Test - that/what

Various point systems may be used to play matches or sets, rather than just one game. With its uniqueness as a three player game, counting games won is possible but does not give credit for finishing second. One system is awarding three points for a win, plus an additional one point for each of the winners remaining balls at the end of each game. The player last eliminated receives two points, the first eliminated player none. There may also be a bonus awarded for playing a perfect game, sinking both opponents sets of 5 balls while having all 5 of yours remaining (Usually 2 points, making a perfect game worth 10 points total: 3 for the win, 5 for remaining balls, plus 2 bonus). This system adds great importance and strategy regarding whom to eliminate first as the match goes on, often creating alliances of the two trailing players to catch the leader in points. The match may be won by reaching a set amount of points, or reaching a set deadline in time.