8 files changed, 8 insertions, 8 deletions
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 = '''\