Table game - 12 Chip trick. 12 chips

«12 chips» - a gambling board game where players try to score 21 points, but instead of the usual cards, they do it with 12 chips, half of which are red and half blue — numbered from 1 to 12.
The... rules of the game are very simple: participants play 4 chips each, the one who has the highest sum on them receives a victory point token.
However, if the sum exceeds 21, it is lost.
 
The game consists of several rounds. At the end of each round, the participant with the highest sum of points on the chips receives one point token. However, if this sum exceeds 21, it is halved! The winner is the one who first collects 3 point tokens. It seems simple, but the trick is in the details! Each player takes turns playing one chip face up from their hand, starting with the first player and moving clockwise. After everyone has taken their turns, the participant who played the chip with the highest value takes all the played chips from the center of the table. Starting with him and continuing clockwise, each player takes one chip from the center. When choosing a chip, red chips are always preferred if available.
The player who played the chip with the maximum value places it face up in front of them. This chip is excluded from the game. The other players add the chips taken back into their hands. These chips can be reused, and there is no need to reveal their values. During the game, each participant always has 4 chips (in hand and in front of them). The player with the highest value becomes the next starting player. If the new starting player has no chips left in their hand, the round ends. The other participants place all the chips from their hands in front of them. Calculate the sum of values of the four chips in front of them. If it exceeds 21, you "bust". 
 
Among those who did not "bust" in this round, the participant with the highest sum wins and receives one point token. If everyone "busts", the one with the highest sum wins. In case of a tie, each participant with the same score receives one point token. The game ends when someone collects three point tokens. In the event of a tie, all participants with equal results share the victory.
 
Game duration: 20 to 30 minutes
Number of players: from 2 to 4