diff --git a/bonemarketsolver/challenge_functions.py b/bonemarketsolver/challenge_functions.py
index 5759ece..688b29d 100644
--- a/bonemarketsolver/challenge_functions.py
+++ b/bonemarketsolver/challenge_functions.py
@@ -1,3 +1,6 @@
+# This is a constant used to calculate difficulty checks. You almost certainly do not need to change this.
+DIFFICULTY_SCALER = 0.6
+
 def narrow_challenge(difficulty_level: int, stat: int):
     offset = 6 - difficulty_level
     stat += offset
@@ -9,6 +12,11 @@ def narrow_challenge(difficulty_level: int, stat: int):
     else:
         return stat/10
 
+def broad_challenge(difficulty_level: int, stat: int):
+    chance = DIFFICULTY_SCALER*stat//difficulty_level
+
+    return chance
+
 def mean_outcome(success: int, failure: int, chance: float):
     mean_success = success*chance
     mean_failure = failure*(1-chance)
diff --git a/bonemarketsolver/read_char.py b/bonemarketsolver/read_char.py
index 4d23769..8ddec3f 100644
--- a/bonemarketsolver/read_char.py
+++ b/bonemarketsolver/read_char.py
@@ -1,5 +1,5 @@
 try:
-    from .custom_char import *
+    from .custom_char import Char
 except:
     print("Note: custom_char.py does not exist. Using default_char.py")
-    from .default_char import *
+    from .default_char import Char
diff --git a/bonemarketsolver/solve.py b/bonemarketsolver/solve.py
index 65b42cf..59305d5 100644
--- a/bonemarketsolver/solve.py
+++ b/bonemarketsolver/solve.py
@@ -27,8 +27,7 @@ ATTRIBUTE_MULTIPLIER = 10000000
 # This is the highest number of attribute to calculate fractional exponents for.
 MAXIMUM_ATTRIBUTE = 100
 
-# This is a constant used to calculate difficulty checks. You almost certainly do not need to change this.
-DIFFICULTY_SCALER = 0.6
+from .challenge_functions import DIFFICULTY_SCALER
 
 
 def NewIntermediateBoolVar(self, name, expression, domain):