diff --git a/generator.py b/generator.py
index e07e8e1..4686cd1 100755
--- a/generator.py
+++ b/generator.py
@@ -1,57 +1,73 @@
 #! env python3
 
 from random import randrange
+from sys import exit
 
-def existing_combination(number, reds, combinations):
-  for red in reds:
-    if (red + number) in combinations:
+def existing_combination(test_number, other_side, combinations):
+  for number in other_side:
+    if (test_number + number) in combinations:
       return True
   return False
 
-def update_combinations(number, reds, combinations):
-  for red in reds:
-    combinations.append(red + number)
+def update_combinations(test_number, other_side, combinations):
+  for number in other_side:
+    combinations.append(test_number + number)
   return combinations
 
-debug = True
-red_size = 6
-blue_size = red_size
+def find_number(already_found, combine_with):
+
+  global biggest_number, combinations, max_retry, debug, increment_size
+
+  new_number = randrange(biggest_number) + 1
+  retry = 0
+
+  while new_number in already_found or new_number in combine_with or existing_combination(new_number, combine_with, combinations):
+    if retry > max_retry:
+      biggest_number = biggest_number + increment_size
+      retry = 0
+      if debug:
+        print(f'Increasing max number to {biggest_number}')
+    retry = retry + 1
+    new_number = randrange(biggest_number) + 1
+
+  combinations = update_combinations(new_number, combine_with, combinations)
+  return new_number
+
+
+debug = False
+red_size = 14
+blue_size = 14
+biggest_number = 19
+increment_size = 10
+max_retry = 1000000
 reds = []
 blues = []
 combinations = []
 
-for i in range(red_size):
-  new_number = randrange(99)
+for i in range(max(red_size, blue_size)):
 
-  while new_number in reds:
-    new_number = randrange(99)
+  if i < red_size:
+    new_number = find_number(reds, blues)
+    reds.append(new_number)
 
-  reds.append(new_number)
+    if debug:
+      print(f'red #{i+1} found: {new_number}')
 
-  if debug:
-    print(f'red #{i+1} found')
+  if i < blue_size:
+    new_number = find_number(blues, reds)
+    blues.append(new_number)
+
+    if debug:
+      print(f'blue #{i+1} found: {new_number}')
 
 reds.sort()
-if debug:
-  print(reds)
-
-for i in range(blue_size):
-  new_number = randrange(99)
-
-  while new_number in reds or new_number in blues or existing_combination(new_number, reds, combinations):
-    new_number = randrange(99)
-
-  blues.append(new_number)
-  combinations = update_combinations(new_number, reds, combinations)
-
-  if debug:
-    print(f'blue #{i+1} found')
-
 blues.sort()
 combinations.sort()
 
+print(f'reds: {reds}')
+print(f'blues: {blues}')
+
 if debug:
-  print(blues)
-  print(combinations)
+  print(f'combinations: {combinations}')
 
 # vim: set sw=2 ts=2 et: