Three people play, who counts to 2 1 first, up to three.

When three people play this game, they can decide who will start counting first in the following ways:

1. Guessing: Three people play a guessing game together, and the winner starts counting first.

2. Take turns: The first person starts to count, and then each player takes turns to count.

3. Draw lots: prepare three lots, each drawing one, and the one that draws the shortest starts first.

4. Rock, scissors and cloth: Three people play the game of rock, scissors and cloth together, and the winner starts to count first.

Either way, the first player can count 1, 2 or 3, the second player must be 3 more than the previous player (that is, 4, 5 or 6), and the third player must be 3 more than the previous player. If the player's points are 2 1 or above, the game is over and the player wins. If all players can't count to 2 1 or above, the player with the largest number wins.