resolve pairing WIP

src/warchron/model/round.py

@@ -1,6 +1,6 @@
 from __future__ import annotations
 from uuid import uuid4
-from typing import Any, Dict
+from typing import Any, Dict, List
 
 from warchron.model.exception import ForbiddenOperation
 from warchron.model.choice import Choice
@@ -119,6 +119,11 @@ class Round:
             b.winner_id is not None or b.is_draw() for b in self.battles.values()
         )
 
+    def get_battles_with_places(self) -> List[Battle]:
+        return [
+            battle for battle in self.battles.values() if battle.get_available_places()
+        ]
+
     def create_battle(self, sector_id: str) -> Battle:
         if self.is_over:
             raise ForbiddenOperation("Can't create battle in a closed round.")