(2,2)                    2      2 
(4,14)                   4     14 
eiland                   7     16 
(5,18)                   5     18 
(9,19)                   9     19 
(17,6)                  17      6 
(21,21)                 21     21 
(4,19)                   4     19 
(9,14)                   9     14