I would ask them all, "If I wanted to be rich, would the other guards advice me to take the left path?
(If left is the safe path to take)
The truthful one would always answer NO (meaning the others would advise me to take the wrong path, right) because they would lie and tell me to take the right direction.
The liars would say NO (because the truthful one would say yes it is the left one, but the liars would say no to fool you), because the truthful one would tell them the left path, but they don't want you to know that.
In this case, they all answered either Da or Ba, meaning the left path is safe.
Or if the correct path is the right one in the long run, and you ask the same question
The truthful one would say YES (because he is letting you know they want you to die)
The liars would say NO( because the truthful one would say YES, but they trick you into thinking the truthful one is the liar!)
So if you think the left lane is the correct choice, ALL MUST SAY DA or BA as a whole.
If you think the left lane is the correct choice, and you have one DA and one BA or a mix of both, then take the opposite path!!!
All same answer = safe path
different anwers= change the direction based on how you worded it (if you said right, go left, if you said left, go right_
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Pan1cMode I know i got it right now