11/1 ok 1
11/1 is_free 1
20/1 ok 2
20/1 is_free 2
33/1 extra_checks 3
33/1 is_free 3
46/1 ok 4
46/1 is_free 4
64/1 extra_checks 6
64/1 is_free 6
86/1 extra_checks 8
86/1 is_free 8
92/1 ok 9
92/1 is_free 9
104/1 ok 10
104/1 is_free 10
120/1 ok 11
120/1 is_free 11
122/1 extra_checks 12
122/1 is_free 12
140/1 ok 13
140/1 is_free 13
150/1 ok 14
150/1 is_free 14
165/1 ok 16
165/1 is_free 16
183/1 turn_away 18
183/1 is_free 18
193/1 ok 19
193/1 is_free 19
205/1 extra_checks 20
205/1 is_free 20