Halve it
Halve it is a darts game popular in the United Kingdom and parts of North America where competitors try to hit previously agreed targets on a standard dart board. Failure to do so within a single throw (3 darts) results in the player losing half their accumulated score. Any number of players can take part and the game can vary in length depending on the number of targets selected. The game can be tailored to the skill level of the players by selecting easy or difficult targets. Common selections include: Most versions of the game have the players  establishing a score with their first throw and targeting the inner bull with their last throw. The targets in between are often chosen by agreement and it is usual to select alternating easy and difficult ones. The selections are then recorded along with the competitors' names as shown in the adjacent table. Order of play can be determined by shooting the cork or drawing lots. If an odd number has to be halved, it is normally rounded up. A game may play out as follows and as illustrated in the table. The first player hits T20, 20, 1 to score  81. Player 2 hits a ton (T20, 20, 20) and player 3 only manages 20, 20, 5 for a total of 45. The second throw is for the 16 and player 1 finds a treble and a single (64), player 2 hits three singles (48) and player 3 hits one. In the third round, the players must hit a double. Player 1 manages to hit the double 11 but the other two players miss. The following throw is for a 6; player 1 hits 2, player 2 hits a treble and two singles, and player 3 hits a single. The  fifth round is for the treble. Player 1 misses, player 2 hits the treble 10 and player 3 the treble 8. In the next round the players must hit a black number followed by a white and a further black. Player 1 shoots 20, 1, 18 to add 39 points to his score, player 2 hits 13, 6, 10 for a further 29 and player 3 gets another 32 points by getting 14, 11, 8. In the penultimate round, player 1 hits the outer bull twice but the others miss. Player 1 must hit the bullseye twice in the final  round to be certain of winning. If he hits it once, player 2 can win by hitting three. Player 3 cannot win unless player 1 misses.