This is the first of the two moon achievements. As was mentioned in “Jack of Spades”, betting the moon means betting thirteen tricks. If you actually take all thirteen it is known as “Shooting the Moon”. This achievement is best done with three friends, so start a game and set the goal for the highest amount of points possible (1550). Whichever team has the Ace of Spades bets the moon as it is the only card impossible to beat. Next you all need to discuss all of the cards that you have in your hand, making sure that the team that bet the moon will be able to shoot it. A very thorough (although very time consuming) way is to have one player get a piece of paper and write down the hands of all four players. Now lay out the thirteen tricks and decide which combination it will take for that team to take all thirteen. Then all you need to do is play the game using the method written down.
The reason for setting the game to the highest amount of points possible is because it is rather hard to actually shoot the moon and if you are able to shoot it once, you are already half-way to shooting it again which is needed for another achievement. So since you are already halfway there, you want as many chances as possible to get a second shot at it.