Find the treasure with a missing gibbet.
[color=#c51414]Open the task sheet:[/color]
https://www.evernote.com/l/AAPZAYsI93FDyqPqbOfRDHlw6FtHThNJY4I
These are links related to this problem:
[list]
[*]https://www.ma.utexas.edu/users/gilbert/M333L/BinderDay2.pdf
http://frink.machighway.com/~dynamicm/hunt.pdf
http://jwilson.coe.uga.edu/EMAT6680Su07/McKee/6690/islandtreasure/it1.html
http://books.google.com.hk/books?id=et6WMlkQlFcC&printsec=frontcover&source=gbs_atb#v=onepage&q&f=false
https://www.academia.edu/5600848/Back_to_Treasure_Island
[/list]
