谜底为四位随机数，参与者通过按键输入所猜数字。游戏状态有三种：设置态、进行态、成功态/放弃态，游戏特色为提示模式。设置态下获得随机数组成的谜底。进行态下输入数字并显示，如果错误，参与者有三个选择：直接重新猜谜，进入提示模式，或者选择放弃并获得谜底。（提示模式下：把输入数字分为两组，分别与谜底的两个分组对应。每个分组中，第一位含义是：如果第一位为A，则这个两位数比谜底大，如果第一位为B，则这个两位数比谜底小或相等；第二位含义是：与谜底分组对应位相同的数字个数。例如：谜底为1234，参与者输入0244，则提示模式显示B1A1；参与者输入1214，则提示模式显示B2B1；参与者输入1234，则游戏成功。）成功态/放弃态下可以看到谜底。-The answer is a four-random number, the participants through the key input by guessing. There are three game state: setting state, Tense, successful state/abort state, the game features a silent mode. Get the answer set of random numbers state. Conduct state numeric input and display, if the error, the participants have three choices: direct re guessing into silent mode, or choose to give up and get the answer. (Cue mode: the digital input is divided into two groups, with two groups of answers corresponding to each packet, the first meaning is: if the first one is A, then the two digits larger than the answers, if the first is B, then the answer is less than or equal to two digits　the second meaning: the answer packet corresponding bit of the same number of digits, for example: the answer is 1234, 0244 participants entered, the prompt mode display B1A1.　 1214 participants entered, the prompt mode display B2B1 . participants enter 1234, then the game is a success) successful state/sta