(12 Mar 2015, 12:56 pm)MurdnunoC wrote Oh OK.

At the risk of sounding stupid, I have no idea what '21's' is or what the game entails. If the aim of the game is to shout-out three numbers - why not shout-out 20 before anyone else does?

I'll run you through it.

So, basically, we all sit in a circle around the room, and either go clockwise or anti-clockwise. We go from person to person, and each can say a maximum of 3 numbers - in order. They can say as many of their 3 numbers as they wish. So, if this makes sense.

Person A: 1, 2
Person B: 3, 4, 5
Person C: 6,7
Person D: 8,9, 10
Person E: 11, 12, 13
Person F: 13, 14
Person G: 15, 16, 17
Person H: 18, 19, 20

Then Person I would be out as a result of Person H choosing to go all the way up to 20, thus catching them out. Basically, if you are given the numbers from 18 from the person before you, who ended on 17, you have the upper hand and ultimately decide the fates of the people after you. You can go all the way to 20 and get the person next to you out, or choose to go up to 19, and let them get the next person out by saying 20. Hopefully this makes sense.