|May 11th, 2015|
Each player has a hand of cards that faces outward, so everyone can see their hand but them. There's a restricted language for communicating with each other: you can tell someone which of their cards are of a given suit, or which cards are of a given rank. Like "this, this, and this are 3s". From this people figure out which of their cards to play, and the goal is to get 25 points by playing one of each of the cards. According to the person who taught me people rarely win outright, and instead generally you just try to get the highest score you can.
When we played we used the game language as it was intended, without any conventions, but it got me wondering what a professional team would do. How far in the direction of Bridge bidding would it go? For example, you could say "your 2s are ..." to mean "play the second card in your hand". The main complication is that you aren't allowed to say "you don't have any 2s"; if they don't have any of something you can't bring it up. Still, because we can use both color and number to tell them about cards this seems like it could go a long way.
I coded up a simple simulation of a two player game where the convention is basically:
- If you've been told what to do, do that.
- If your partner has a card they could play, map position in their hand to suit/number and tell them that if it's allowed. When you have multiple options pick the one that best maintains diversity.
- Otherwise, discard the card you've had longest.
This isn't a great score, but there's lots of room to improve this convention:
- You could reserve some values for telling your partner what to discard.
- You could change the meaning of sayings as the game goes on, because earlier in the game there are more legal cards to play.
- You could use multiple turns to tell someone what to do; the average game in my simulation ended with 25.7 extra information tokens, which is kind of ridiculous. 
 I hadn't been for 8.5 years, which is rather a lot.
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