
Anyway, there's one method, it's called "brute-force mathematical enumeration of options"... I'll try to apply it here...
So...
Will protects Barbossa, Jack sends the guest to himself or to another Mafia member.

Meanwhile, Barbossa goes to Astral to ask if he's seen his monkey, which ran away somewhere a few days ago...
Worst-case scenarios:
1. Siver-Beckett kills Barbossa or Will. He is tormented by remorse and jumps overboard. Tomorrow afternoon, his accomplice, Astral, realizing the hopelessness of his situation, takes out a heart from a chest and stabs it with his saber. Or, the brave guys from the Black Pearl do it.
2. Siver-Jones kills Will or Jack. He is tormented by remorse and takes out a heart from a chest and stabs it with his saber. His accomplice, Astral, hides from justice for two days and nights, but by the end of the 2nd day, he is still found and thrown overboard.
3. Siver-Jones kills Will or Jack. He is not tormented by remorse, or he is, but he still doesn't take out a heart from a chest and stab it with his saber. Then, tomorrow afternoon, the brave guys from the Black Pearl do it. After that, his accomplice, Astral, hides from justice for two nights and two days, but by the end of the 2nd day, he is still found and thrown overboard.
4. Siver-Beckett kills Will. He is not tormented by remorse, and he doesn't jump overboard. Then, tomorrow afternoon, the brave guys from the Black Pearl take out a heart from the chest of his accomplice, Astral, and stab it with his own saber. After that, Siver-Beckett hides from justice for two nights and two days, but by the end of the 2nd day, he is still found and thrown overboard.
5. Siver-Beckett kills Barbossa. He is not tormented by remorse, and he doesn't jump overboard. Then, there might be problems with the administration of justice on the Black Pearl...
What do you say, Sky, Kosha, and Fragment? Others can also express their opinion if they want...
Added after 19 minutes
Lizard... His game defies human characteristics. Different units of measurement are needed here.
Если где-то чего-то убудет, то в другом месте добавится.
(Закон сохранения).