This is a fine game. Finding 150 similar and noise making small items might be difficult. The items must be quite small as one must fit up to 10 in each hand. I’m sure this game would work well, but it doesn’t offer me much in terms of game play. It’s basically a binary outcome guessing game with a little bit of added information – in the form of reading the other player and listening for stones changing hands. Correct me if I am wrong, but this game seems to be little more than guessing a flipped coin.
How are people supposed to “always see how many piece are left” with 150 stones on the table? I hope people aren’t counting each round because that would take forever and would not be fun. I’m not sure that knowing the number of remaining stone is even important. Possibly, you are talking about the ‘pair sets’ needed? This is only true of your own. You really don’t need to know the other person’s sets as they will tell you what they need.
Also, I don’t think you need 150 stones as the maximum needed by any player is 55 stones. Plus 10 place holders (which aren’t necessary) and maybe a few extra for bluffing if the game comes down to the wire. You can get by with 120 stones much easier and there will be less to keep track of.
The title of this game only remotely has to do with the game and presumes the stones will make a lot of noise when switching hands. Also, it will take a long time to switch a hand from 1 stone to 10 and therefore be easier to spot as a bluff. The smart way to play this game is to start by taking the middle sets and working your way out.
I think you could make this game much simpler. One player takes a token, coin or stone. Behind their back the player puts the stone in one hand and stretches out the closed hands. The bluffer can say whatever they want to try to fool the other player into choosing the empty hand. The other player guesses which hand has the stone by tapping a hand. If they are correct, they get the point. If the bluffer guesses the item, they get the point. This is essentially the same game and only requires one stone, coin, or really anything that can fit in a hand. And if it sounds familiar, it’s because we use this game to divide the last candy. Chose the right hand and you can keep the candy, choose wrong and I eat it.