From b893261f079b79b72db2bd7e8e67c36313d04237 Mon Sep 17 00:00:00 2001
From: Timotej Lazar <timotej.lazar@fri.uni-lj.si>
Date: Mon, 29 Feb 2016 08:59:28 +0100
Subject: Prolog: hide all but the first problem group
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Hopefully nobody is using the app yet for self-study….
---
 prolog/problems/clp_fd/gcd_3/common.py                       | 2 +-
 prolog/problems/clp_fd/magic_1/common.py                     | 2 +-
 prolog/problems/clp_fd/puzzle_abc_3/common.py                | 2 +-
 prolog/problems/clp_fd/puzzle_beth_1/common.py               | 2 +-
 prolog/problems/clp_fd/puzzle_momson_2/common.py             | 2 +-
 prolog/problems/clp_fd/puzzle_ratio_2/common.py              | 2 +-
 prolog/problems/clp_fd/tobase_3/common.py                    | 2 +-
 prolog/problems/clp_r/bounding_box_3/common.py               | 2 +-
 prolog/problems/clp_r/center_3/common.py                     | 2 +-
 prolog/problems/clp_r/linear_opt_3/common.py                 | 2 +-
 prolog/problems/clp_r/max_sum_2/common.py                    | 2 +-
 prolog/problems/clp_r/megabytes_2/common.py                  | 2 +-
 prolog/problems/clp_r/turkey_3/common.py                     | 2 +-
 prolog/problems/dcg/ab_2/common.py                           | 2 +-
 prolog/problems/dcg/digit_2/common.py                        | 2 +-
 prolog/problems/dcg/flower_2/common.py                       | 2 +-
 prolog/problems/dcg/number_2/common.py                       | 2 +-
 prolog/problems/dcg/number_3/common.py                       | 2 +-
 prolog/problems/dcg/number_proper_2/common.py                | 2 +-
 prolog/problems/dcg/paren_2/common.py                        | 2 +-
 prolog/problems/dcg/paren_3/common.py                        | 2 +-
 prolog/problems/license_plates/checklicenseplate_3/common.py | 2 +-
 prolog/problems/license_plates/firstminus_2/common.py        | 2 +-
 prolog/problems/license_plates/genexp_2/common.py            | 2 +-
 prolog/problems/license_plates/getdigits_2/common.py         | 2 +-
 prolog/problems/license_plates/joindigits_2/common.py        | 2 +-
 prolog/problems/lists/conc_3/common.py                       | 2 +-
 prolog/problems/lists/count_3/common.py                      | 2 +-
 prolog/problems/lists/del_3/common.py                        | 2 +-
 prolog/problems/lists/divide_3/common.py                     | 2 +-
 prolog/problems/lists/dup_2/common.py                        | 2 +-
 prolog/problems/lists/evenlen_1_+_oddlen_1/common.py         | 2 +-
 prolog/problems/lists/insert_3/common.py                     | 2 +-
 prolog/problems/lists/len_2/common.py                        | 2 +-
 prolog/problems/lists/max_2/common.py                        | 2 +-
 prolog/problems/lists/memb_2/common.py                       | 2 +-
 prolog/problems/lists/min_2/common.py                        | 2 +-
 prolog/problems/lists/palindrome_1/common.py                 | 2 +-
 prolog/problems/lists/permute_2/common.py                    | 2 +-
 prolog/problems/lists/rev_2/common.py                        | 2 +-
 prolog/problems/lists/shiftleft_2/common.py                  | 2 +-
 prolog/problems/lists/shiftright_2/common.py                 | 2 +-
 prolog/problems/lists/sublist_2/common.py                    | 2 +-
 prolog/problems/lists/sum_2/common.py                        | 2 +-
 prolog/problems/sets/diff_3/common.py                        | 2 +-
 prolog/problems/sets/intersect_3/common.py                   | 2 +-
 prolog/problems/sets/is_subset_2/common.py                   | 2 +-
 prolog/problems/sets/is_superset_2/common.py                 | 2 +-
 prolog/problems/sets/powerset_2/common.py                    | 2 +-
 prolog/problems/sets/subset_2/common.py                      | 2 +-
 prolog/problems/sets/union_3/common.py                       | 2 +-
 prolog/problems/sorting/is_sorted_1/common.py                | 2 +-
 prolog/problems/sorting/isort_2/common.py                    | 2 +-
 prolog/problems/sorting/pivoting_4/common.py                 | 2 +-
 prolog/problems/sorting/quick_sort_2/common.py               | 2 +-
 prolog/problems/sorting/sins_3/common.py                     | 2 +-
 prolog/problems/sorting/slowest_sort_ever_2/common.py        | 2 +-
 57 files changed, 57 insertions(+), 57 deletions(-)

(limited to 'prolog/problems')

diff --git a/prolog/problems/clp_fd/gcd_3/common.py b/prolog/problems/clp_fd/gcd_3/common.py
index 5048a73..627431c 100644
--- a/prolog/problems/clp_fd/gcd_3/common.py
+++ b/prolog/problems/clp_fd/gcd_3/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 149
 number = 61
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/clp_fd/magic_1/common.py b/prolog/problems/clp_fd/magic_1/common.py
index c9e89c7..423efc0 100644
--- a/prolog/problems/clp_fd/magic_1/common.py
+++ b/prolog/problems/clp_fd/magic_1/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 151
 number = 60
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/clp_fd/puzzle_abc_3/common.py b/prolog/problems/clp_fd/puzzle_abc_3/common.py
index 74275e9..fcaec95 100644
--- a/prolog/problems/clp_fd/puzzle_abc_3/common.py
+++ b/prolog/problems/clp_fd/puzzle_abc_3/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 153
 number = 57
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/clp_fd/puzzle_beth_1/common.py b/prolog/problems/clp_fd/puzzle_beth_1/common.py
index 50bdf08..870b476 100644
--- a/prolog/problems/clp_fd/puzzle_beth_1/common.py
+++ b/prolog/problems/clp_fd/puzzle_beth_1/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 155
 number = 56
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/clp_fd/puzzle_momson_2/common.py b/prolog/problems/clp_fd/puzzle_momson_2/common.py
index cd423fb..c3d734d 100644
--- a/prolog/problems/clp_fd/puzzle_momson_2/common.py
+++ b/prolog/problems/clp_fd/puzzle_momson_2/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 152
 number = 58
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/clp_fd/puzzle_ratio_2/common.py b/prolog/problems/clp_fd/puzzle_ratio_2/common.py
index d62a15f..77613d1 100644
--- a/prolog/problems/clp_fd/puzzle_ratio_2/common.py
+++ b/prolog/problems/clp_fd/puzzle_ratio_2/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 154
 number = 59
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/clp_fd/tobase_3/common.py b/prolog/problems/clp_fd/tobase_3/common.py
index e358210..a31d773 100644
--- a/prolog/problems/clp_fd/tobase_3/common.py
+++ b/prolog/problems/clp_fd/tobase_3/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 150
 number = 62
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/clp_r/bounding_box_3/common.py b/prolog/problems/clp_r/bounding_box_3/common.py
index 94be5ee..eb2ac0a 100644
--- a/prolog/problems/clp_r/bounding_box_3/common.py
+++ b/prolog/problems/clp_r/bounding_box_3/common.py
@@ -2,7 +2,7 @@
 
 id = 157
 number = 67
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/clp_r/center_3/common.py b/prolog/problems/clp_r/center_3/common.py
index 5391180..856194d 100644
--- a/prolog/problems/clp_r/center_3/common.py
+++ b/prolog/problems/clp_r/center_3/common.py
@@ -2,7 +2,7 @@
 
 id = 158
 number = 68
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/clp_r/linear_opt_3/common.py b/prolog/problems/clp_r/linear_opt_3/common.py
index f6e8840..cf2dd5e 100644
--- a/prolog/problems/clp_r/linear_opt_3/common.py
+++ b/prolog/problems/clp_r/linear_opt_3/common.py
@@ -2,7 +2,7 @@
 
 id = 159
 number = 63
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/clp_r/max_sum_2/common.py b/prolog/problems/clp_r/max_sum_2/common.py
index d025090..3f90b40 100644
--- a/prolog/problems/clp_r/max_sum_2/common.py
+++ b/prolog/problems/clp_r/max_sum_2/common.py
@@ -2,7 +2,7 @@
 
 id = 156
 number = 66
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/clp_r/megabytes_2/common.py b/prolog/problems/clp_r/megabytes_2/common.py
index 1f5bdd5..1cedd38 100644
--- a/prolog/problems/clp_r/megabytes_2/common.py
+++ b/prolog/problems/clp_r/megabytes_2/common.py
@@ -2,7 +2,7 @@
 
 id = 160
 number = 65
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/clp_r/turkey_3/common.py b/prolog/problems/clp_r/turkey_3/common.py
index b7bc7f4..0fde5a8 100644
--- a/prolog/problems/clp_r/turkey_3/common.py
+++ b/prolog/problems/clp_r/turkey_3/common.py
@@ -2,7 +2,7 @@
 
 id = 161
 number = 64
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/dcg/ab_2/common.py b/prolog/problems/dcg/ab_2/common.py
index b9109fc..e562c1b 100644
--- a/prolog/problems/dcg/ab_2/common.py
+++ b/prolog/problems/dcg/ab_2/common.py
@@ -2,7 +2,7 @@
 
 id = 162
 number = 69
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/dcg/digit_2/common.py b/prolog/problems/dcg/digit_2/common.py
index 571df40..e56e563 100644
--- a/prolog/problems/dcg/digit_2/common.py
+++ b/prolog/problems/dcg/digit_2/common.py
@@ -2,7 +2,7 @@
 
 id = 164
 number = 71
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/dcg/flower_2/common.py b/prolog/problems/dcg/flower_2/common.py
index e28d10d..9d6f92e 100644
--- a/prolog/problems/dcg/flower_2/common.py
+++ b/prolog/problems/dcg/flower_2/common.py
@@ -2,7 +2,7 @@
 
 id = 163
 number = 70
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/dcg/number_2/common.py b/prolog/problems/dcg/number_2/common.py
index a05ca18..b0659a6 100644
--- a/prolog/problems/dcg/number_2/common.py
+++ b/prolog/problems/dcg/number_2/common.py
@@ -2,7 +2,7 @@
 
 id = 165
 number = 72
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/dcg/number_3/common.py b/prolog/problems/dcg/number_3/common.py
index 2977392..7c3daf1 100644
--- a/prolog/problems/dcg/number_3/common.py
+++ b/prolog/problems/dcg/number_3/common.py
@@ -2,7 +2,7 @@
 
 id = 167
 number = 74
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/dcg/number_proper_2/common.py b/prolog/problems/dcg/number_proper_2/common.py
index a3e3592..2779539 100644
--- a/prolog/problems/dcg/number_proper_2/common.py
+++ b/prolog/problems/dcg/number_proper_2/common.py
@@ -2,7 +2,7 @@
 
 id = 166
 number = 73
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/dcg/paren_2/common.py b/prolog/problems/dcg/paren_2/common.py
index 1d8f653..63ecd2f 100644
--- a/prolog/problems/dcg/paren_2/common.py
+++ b/prolog/problems/dcg/paren_2/common.py
@@ -2,7 +2,7 @@
 
 id = 168
 number = 75
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/dcg/paren_3/common.py b/prolog/problems/dcg/paren_3/common.py
index a905149..a3cb6d3 100644
--- a/prolog/problems/dcg/paren_3/common.py
+++ b/prolog/problems/dcg/paren_3/common.py
@@ -2,7 +2,7 @@
 
 id = 169
 number = 76
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/license_plates/checklicenseplate_3/common.py b/prolog/problems/license_plates/checklicenseplate_3/common.py
index 3a403d2..9f13afc 100644
--- a/prolog/problems/license_plates/checklicenseplate_3/common.py
+++ b/prolog/problems/license_plates/checklicenseplate_3/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 148
 number = 55
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/license_plates/firstminus_2/common.py b/prolog/problems/license_plates/firstminus_2/common.py
index dd967b6..39fee17 100644
--- a/prolog/problems/license_plates/firstminus_2/common.py
+++ b/prolog/problems/license_plates/firstminus_2/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 147
 number = 54
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/license_plates/genexp_2/common.py b/prolog/problems/license_plates/genexp_2/common.py
index 4e2ebdf..99b078b 100644
--- a/prolog/problems/license_plates/genexp_2/common.py
+++ b/prolog/problems/license_plates/genexp_2/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 146
 number = 53
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/license_plates/getdigits_2/common.py b/prolog/problems/license_plates/getdigits_2/common.py
index 33c45c6..d024c0a 100644
--- a/prolog/problems/license_plates/getdigits_2/common.py
+++ b/prolog/problems/license_plates/getdigits_2/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 144
 number = 51
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/license_plates/joindigits_2/common.py b/prolog/problems/license_plates/joindigits_2/common.py
index ed284e7..d84b85e 100644
--- a/prolog/problems/license_plates/joindigits_2/common.py
+++ b/prolog/problems/license_plates/joindigits_2/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 145
 number = 52
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/lists/conc_3/common.py b/prolog/problems/lists/conc_3/common.py
index 82b700f..0c5312f 100644
--- a/prolog/problems/lists/conc_3/common.py
+++ b/prolog/problems/lists/conc_3/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 104
 number = 12
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/lists/count_3/common.py b/prolog/problems/lists/count_3/common.py
index 0f4f171..2953f06 100644
--- a/prolog/problems/lists/count_3/common.py
+++ b/prolog/problems/lists/count_3/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 120
 number = 27
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/lists/del_3/common.py b/prolog/problems/lists/del_3/common.py
index f19146f..23caf08 100644
--- a/prolog/problems/lists/del_3/common.py
+++ b/prolog/problems/lists/del_3/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 105
 number = 11
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/lists/divide_3/common.py b/prolog/problems/lists/divide_3/common.py
index 25959aa..969cdec 100644
--- a/prolog/problems/lists/divide_3/common.py
+++ b/prolog/problems/lists/divide_3/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 115
 number = 22
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/lists/dup_2/common.py b/prolog/problems/lists/dup_2/common.py
index 3697fa6..4153533 100644
--- a/prolog/problems/lists/dup_2/common.py
+++ b/prolog/problems/lists/dup_2/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 110
 number = 17
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/lists/evenlen_1_+_oddlen_1/common.py b/prolog/problems/lists/evenlen_1_+_oddlen_1/common.py
index 846ae95..1236551 100644
--- a/prolog/problems/lists/evenlen_1_+_oddlen_1/common.py
+++ b/prolog/problems/lists/evenlen_1_+_oddlen_1/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 116
 number = 23
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/lists/insert_3/common.py b/prolog/problems/lists/insert_3/common.py
index 281d10c..be4da78 100644
--- a/prolog/problems/lists/insert_3/common.py
+++ b/prolog/problems/lists/insert_3/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 106
 number = 13
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/lists/len_2/common.py b/prolog/problems/lists/len_2/common.py
index edcbe41..93a1faa 100644
--- a/prolog/problems/lists/len_2/common.py
+++ b/prolog/problems/lists/len_2/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 119
 number = 26
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/lists/max_2/common.py b/prolog/problems/lists/max_2/common.py
index 5187df3..92cf793 100644
--- a/prolog/problems/lists/max_2/common.py
+++ b/prolog/problems/lists/max_2/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 109
 number = 16
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/lists/memb_2/common.py b/prolog/problems/lists/memb_2/common.py
index b258731..c3f4dde 100644
--- a/prolog/problems/lists/memb_2/common.py
+++ b/prolog/problems/lists/memb_2/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 103
 number = 10
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/lists/min_2/common.py b/prolog/problems/lists/min_2/common.py
index 39ffe89..213da5a 100644
--- a/prolog/problems/lists/min_2/common.py
+++ b/prolog/problems/lists/min_2/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 108
 number = 15
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/lists/palindrome_1/common.py b/prolog/problems/lists/palindrome_1/common.py
index df7b2c0..e9960c6 100644
--- a/prolog/problems/lists/palindrome_1/common.py
+++ b/prolog/problems/lists/palindrome_1/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 112
 number = 19
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/lists/permute_2/common.py b/prolog/problems/lists/permute_2/common.py
index 6a3cc7f..c6381c2 100644
--- a/prolog/problems/lists/permute_2/common.py
+++ b/prolog/problems/lists/permute_2/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 107
 number = 14
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/lists/rev_2/common.py b/prolog/problems/lists/rev_2/common.py
index b34a2fa..408389a 100644
--- a/prolog/problems/lists/rev_2/common.py
+++ b/prolog/problems/lists/rev_2/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 111
 number = 18
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/lists/shiftleft_2/common.py b/prolog/problems/lists/shiftleft_2/common.py
index 0d1c224..13db28f 100644
--- a/prolog/problems/lists/shiftleft_2/common.py
+++ b/prolog/problems/lists/shiftleft_2/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 113
 number = 20
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/lists/shiftright_2/common.py b/prolog/problems/lists/shiftright_2/common.py
index 728bae9..d8a4c9f 100644
--- a/prolog/problems/lists/shiftright_2/common.py
+++ b/prolog/problems/lists/shiftright_2/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 114
 number = 21
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/lists/sublist_2/common.py b/prolog/problems/lists/sublist_2/common.py
index 73e70ef..6187ebc 100644
--- a/prolog/problems/lists/sublist_2/common.py
+++ b/prolog/problems/lists/sublist_2/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 117
 number = 24
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/lists/sum_2/common.py b/prolog/problems/lists/sum_2/common.py
index 559b18f..000b4b0 100644
--- a/prolog/problems/lists/sum_2/common.py
+++ b/prolog/problems/lists/sum_2/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 118
 number = 25
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/sets/diff_3/common.py b/prolog/problems/sets/diff_3/common.py
index fe21e50..1f00d5c 100644
--- a/prolog/problems/sets/diff_3/common.py
+++ b/prolog/problems/sets/diff_3/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 130
 number = 37
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/sets/intersect_3/common.py b/prolog/problems/sets/intersect_3/common.py
index 1cf2945..afece71 100644
--- a/prolog/problems/sets/intersect_3/common.py
+++ b/prolog/problems/sets/intersect_3/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 129
 number = 36
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/sets/is_subset_2/common.py b/prolog/problems/sets/is_subset_2/common.py
index 696a4a6..9985a9d 100644
--- a/prolog/problems/sets/is_subset_2/common.py
+++ b/prolog/problems/sets/is_subset_2/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 132
 number = 39
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/sets/is_superset_2/common.py b/prolog/problems/sets/is_superset_2/common.py
index 41a0aa3..7a5e373 100644
--- a/prolog/problems/sets/is_superset_2/common.py
+++ b/prolog/problems/sets/is_superset_2/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 131
 number = 38
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/sets/powerset_2/common.py b/prolog/problems/sets/powerset_2/common.py
index aec5cab..1090bfa 100644
--- a/prolog/problems/sets/powerset_2/common.py
+++ b/prolog/problems/sets/powerset_2/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 134
 number = 41
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/sets/subset_2/common.py b/prolog/problems/sets/subset_2/common.py
index 9cf4714..e67c4c4 100644
--- a/prolog/problems/sets/subset_2/common.py
+++ b/prolog/problems/sets/subset_2/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 133
 number = 40
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/sets/union_3/common.py b/prolog/problems/sets/union_3/common.py
index 899d20e..c955fef 100644
--- a/prolog/problems/sets/union_3/common.py
+++ b/prolog/problems/sets/union_3/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 128
 number = 35
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/sorting/is_sorted_1/common.py b/prolog/problems/sorting/is_sorted_1/common.py
index 6409f20..0e8a49d 100644
--- a/prolog/problems/sorting/is_sorted_1/common.py
+++ b/prolog/problems/sorting/is_sorted_1/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 121
 number = 28
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/sorting/isort_2/common.py b/prolog/problems/sorting/isort_2/common.py
index 7b48990..560e3e8 100644
--- a/prolog/problems/sorting/isort_2/common.py
+++ b/prolog/problems/sorting/isort_2/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 123
 number = 30
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/sorting/pivoting_4/common.py b/prolog/problems/sorting/pivoting_4/common.py
index 4dbabcb..17cf270 100644
--- a/prolog/problems/sorting/pivoting_4/common.py
+++ b/prolog/problems/sorting/pivoting_4/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 124
 number = 31
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/sorting/quick_sort_2/common.py b/prolog/problems/sorting/quick_sort_2/common.py
index 25466e2..85ababe 100644
--- a/prolog/problems/sorting/quick_sort_2/common.py
+++ b/prolog/problems/sorting/quick_sort_2/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 125
 number = 32
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/sorting/sins_3/common.py b/prolog/problems/sorting/sins_3/common.py
index a582dc5..a363bac 100644
--- a/prolog/problems/sorting/sins_3/common.py
+++ b/prolog/problems/sorting/sins_3/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 122
 number = 29
-visible = True
+visible = False
 facts = None
 
 solution = '''\
diff --git a/prolog/problems/sorting/slowest_sort_ever_2/common.py b/prolog/problems/sorting/slowest_sort_ever_2/common.py
index 304f491..38f2d1d 100644
--- a/prolog/problems/sorting/slowest_sort_ever_2/common.py
+++ b/prolog/problems/sorting/slowest_sort_ever_2/common.py
@@ -6,7 +6,7 @@ import server.problems
 
 id = 126
 number = 33
-visible = True
+visible = False
 facts = None
 
 solution = '''\
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