diff -r 209f5930d038 -r 16a5c37e4e67 service.py
--- a/service.py	Fri Apr 20 13:50:02 2018 +0300
+++ b/service.py	Tue Apr 24 23:21:34 2018 +0300
@@ -268,9 +268,11 @@
 	adjusted_time = time - timedelta(hours = 4, minutes = 30)
 	return adjusted_time.weekday() in [4, 5] and is_night_time(time)
 
-encircled = '\u24b6\u24b7\u24b8\u24b9\u24ba\u24bb\u24bc\u24bd\u24be\u24bf' \
-	'\u24c0\u24c1\u24c2\u24c3\u24c4\u24c5\u24c6\u24c7\u24c8\u24c9\u24ca\u24cb' \
-	'\u24cc\u24cd\u24ce\u24cf'
+#encircled = '\u24b6\u24b7\u24b8\u24b9\u24ba\u24bb\u24bc\u24bd\u24be\u24bf' \
+#	'\u24c0\u24c1\u24c2\u24c3\u24c4\u24c5\u24c6\u24c7\u24c8\u24c9\u24ca\u24cb' \
+#	'\u24cc\u24cd\u24ce\u24cf'
+#encircled = '⒜⒝⒞⒟⒠⒡⒢⒣⒤⒥⒦⒧⒨⒩⒪⒫⒬⒭⒮⒯⒰⒱⒲⒳⒴⒵'
+encircled = 'ⓐⓑⓒⓓⓔⓕⓖⓗⓘⓙⓚⓛⓜⓝⓞⓟⓠⓡⓢⓣⓤⓥⓦⓧⓨⓩ'
 
 def encircle(char):
 	from string import ascii_uppercase
@@ -295,9 +297,11 @@
 	from collections import defaultdict, Counter
 	from busroute import simplify_name
 	destinations_per_route = defaultdict(Counter)
+	counts_per_variant = {}
 	def route_key(route_ref):
+		from math import log
 		try:
-			return parse_route_ref(route_ref)
+			return () + parse_route_ref(route_ref)
 		except ValueError:
 			return ()
 	def filter_names(names):
@@ -340,12 +344,14 @@
 				'destination': filter_names(destination),
 				'count': count
 			})
+			counts_per_variant[route_name] = count
 	all_variants.sort(key = lambda k: k['count'])
 	route_variant_count = len(all_variants)
 	# Only consider variants so that they cover at least 99% of bus leaves
 	coverage = 0
-	while all_variants: #coverage / num_leaves < 0.99:
-		variant = all_variants.pop()
+	#while coverage / num_leaves < 0.99:
+	#	variant = all_variants.pop()
+	for variant in all_variants:
 		routes_per_destination[variant['destination']].add(variant['name'])
 		coverage += variant['count']
 	for key in routes_per_destination:
@@ -360,22 +366,29 @@
 		return length or len(route)
 	from math import inf
 	def route_key(route):
+		from math import log
 		return (
 			route in night_routes,
+			counts_per_variant.get(route, 0) < 20,
 			route_len(route),
 			str(route)
 		)
 	def routes_key(routes):
 		return min(route_key(route) for route in routes)
 	result = []
+	rare_variants = {variant['name'] for variant in all_variants if variant['count'] < 20}
+	rare_variant_groups = set()
 	for regions, routes in sorted(
 		routes_per_destination.items(),
 		key = lambda pair: routes_key(pair[1])
 	):
+		routes_tuple = tuple(condense_route_list(sorted(routes, key = route_key)))
 		result.append((
-			list(condense_route_list(sorted(routes, key = route_key))),
+			routes_tuple,
 			' - '.join(tr(region, 'region_short_name') for region in regions)
 		))
+		if all(variant in rare_variants for variant in routes):
+			rare_variant_groups.add(routes_tuple)
 	return {
 		'night-routes': night_routes,
 		'all-night-routes': lambda entry, description: all(route in description['night-routes'] for route in entry[0]),
@@ -383,6 +396,8 @@
 		'description': result,
 		'wtf': destinations_per_route,
 		'variant-map': {k:variant_names[v] for k, v in trip_mapping.items()},
+		'rare-variants': rare_variants,
+		'rare-variant-groups': rare_variant_groups,
 	}
 
 @app.route('/stop_description/<reference>')