diff --git a/python/e075.py b/python/e075.py
index cdb7cfa..6c90cb3 100644
--- a/python/e075.py
+++ b/python/e075.py
@@ -95,6 +95,22 @@ def dicksons_method_efficient(r):
 
 
 def euler_075():
+    """
+    We are using Dickson's method to get all Pythagorean triples.  The
+    challenge is that this method requires finding the divisors for a
+    given r. To make it more efficient we stop iterating after the
+    perimeter exceeds the threshold L_max for any given r.
+    In addition we found a r_max of 258000 empirically.
+    This runs for 15 minutes with cpython and in under 5 minutes in pypy.
+    It would have been better to use a generator function that finds native
+    solutions and then extrapolate with factors k in range(2, 1500000)
+    while L < L_max.
+
+    https://en.wikipedia.org/wiki/Formulas_for_generating_Pythagorean_triples#Dickson's_method   
+
+    XXX: Can be strongly optimized.
+    """
+
     r_max = 258000
     perimeter_counts = {}
 
@@ -116,4 +132,4 @@ def euler_075():
 
 if __name__ == "__main__":
     print("e075.py: " + str(euler_075()))
-    # assert(euler_075() == 0)
+    assert(euler_075() == 161667)
diff --git a/python/e076.py b/python/e076.py
index 2a6d6a6..b9c2756 100644
--- a/python/e076.py
+++ b/python/e076.py
@@ -14,8 +14,10 @@ def possible_sums(n, n_orig, d):
     return possible_sums(n - d, n_orig, d) + possible_sums(n, n_orig, d + 1)
 
 
-def euler_067():
+def euler_076():
     return possible_sums(100, 100, 1)
 
 
-print(euler_067())
\ No newline at end of file
+if __name__ == "__main__":
+    print("e076.py: " + str(euler_076()))
+    assert(euler_076() == 190569291)
diff --git a/python/e077.py b/python/e077.py
new file mode 100644
index 0000000..4ada5f1
--- /dev/null
+++ b/python/e077.py
@@ -0,0 +1,8 @@
+
+def euler_077():
+    return 0
+
+
+if __name__ == "__main__":
+    print("e077.py: " + str(euler_077()))
+    assert(euler_077() == 0)
diff --git a/python/e078.py b/python/e078.py
new file mode 100644
index 0000000..4891b83
--- /dev/null
+++ b/python/e078.py
@@ -0,0 +1,8 @@
+
+def euler_078():
+    return 0
+
+
+if __name__ == "__main__":
+    print("e078.py: " + str(euler_078()))
+    assert(euler_078() == 0)
diff --git a/python/e079.py b/python/e079.py
new file mode 100644
index 0000000..15cd56d
--- /dev/null
+++ b/python/e079.py
@@ -0,0 +1,8 @@
+
+def euler_079():
+    return 0
+
+
+if __name__ == "__main__":
+    print("e079.py: " + str(euler_079()))
+    assert(euler_079() == 0)
diff --git a/python/e080.py b/python/e080.py
new file mode 100644
index 0000000..8144b60
--- /dev/null
+++ b/python/e080.py
@@ -0,0 +1,8 @@
+
+def euler_080():
+    return 0
+
+
+if __name__ == "__main__":
+    print("e080.py: " + str(euler_080()))
+    assert(euler_080() == 0)
diff --git a/python/e081.py b/python/e081.py
new file mode 100644
index 0000000..d592087
--- /dev/null
+++ b/python/e081.py
@@ -0,0 +1,8 @@
+
+def euler_081():
+    return 0
+
+
+if __name__ == "__main__":
+    print("e081.py: " + str(euler_081()))
+    assert(euler_081() == 0)
diff --git a/python/e082.py b/python/e082.py
new file mode 100644
index 0000000..79a1670
--- /dev/null
+++ b/python/e082.py
@@ -0,0 +1,8 @@
+
+def euler_082():
+    return 0
+
+
+if __name__ == "__main__":
+    print("e082.py: " + str(euler_082()))
+    assert(euler_082() == 0)
diff --git a/python/e083.py b/python/e083.py
new file mode 100644
index 0000000..4ba38ac
--- /dev/null
+++ b/python/e083.py
@@ -0,0 +1,8 @@
+
+def euler_083():
+    return 0
+
+
+if __name__ == "__main__":
+    print("e083.py: " + str(euler_083()))
+    assert(euler_083() == 0)
diff --git a/python/e084.py b/python/e084.py
new file mode 100644
index 0000000..9963075
--- /dev/null
+++ b/python/e084.py
@@ -0,0 +1,8 @@
+
+def euler_084():
+    return 0
+
+
+if __name__ == "__main__":
+    print("e084.py: " + str(euler_084()))
+    assert(euler_084() == 0)
diff --git a/python/e085.py b/python/e085.py
new file mode 100644
index 0000000..ba42412
--- /dev/null
+++ b/python/e085.py
@@ -0,0 +1,8 @@
+
+def euler_085():
+    return 0
+
+
+if __name__ == "__main__":
+    print("e085.py: " + str(euler_085()))
+    assert(euler_085() == 0)
diff --git a/python/lib_create_templates.py b/python/lib_create_templates.py
index cc4465e..68ba86c 100644
--- a/python/lib_create_templates.py
+++ b/python/lib_create_templates.py
@@ -1,5 +1,5 @@
-FROM = 70
-TILL = 75
+FROM = 77
+TILL = 85
 
 template = """
 def euler_XXX():