Gin Rummy

This achievement can be boosted online with a friend in a player/private match. Select classic gin with default scoring settings.

To ensure the match will end in exactly two hands, work together to make sure the losing player has 75 points of deadwood in his hand before the winning player goes gin. The winning player will get the 75 points of deadwood + a 25 point bonus for going gin which ends the 100 point game in one hand. With all the end of game bonuses you will have about 470 points, needing 500 to win the match. Play the second hand the same way and you'll end the match with an average of 950 points.

I'd estimate it takes about 5 minutes on average for each match. So in an hour both players can earn approximately 6000 points.

Just completing the single player achievements will net you about 10k leaving the rest to boost. Use the above method while working on your 25 player match wins.

If you're unsure what deadwood is, it means cards that aren't in a set or a run. An example of a set would be: three kings, a run would be 7,8,9 of hearts. Deadwood would be two kings, and 7,8 of hearts. Just be careful and make sure the deadwood totals 75 points to maximize boosting efficiency. Face cards are worth 10 points.

http://en.wikipedia.org/wiki/Gin_rummy

To see your point total, go to Help & Options > Player Statistics. It'll be the last one listed. After playing 57 games and not boosting, I only had 13k points. If I unlock this, I put my stats up to show what you should expect to get if not using the boosting method.


Edit:

Years later, I finally did it.

Games Won: 107
Games Played: 176
Rounds Won Going Gin: 368
Rounds Won by Undercut: 198
Total Points: 50076

From 13k until 49,900 I did classic mode, then ended with a Speed Gin.