Removed second pass and solved for british crossword

BPSolver_inf.py

@@ -77,7 +77,7 @@ class BPCell:
     def _connect(self, other):
         self.crossing_vars.append(other)
         self.directional_scores.append(None)
-        assert len(self.crossing_vars) <= 2
+        # assert len(self.crossing_vars) <= 2
 
     def _propagate_to_cell(self, other, belief_state):
         assert other in self.crossing_vars

main.py

@@ -60,7 +60,7 @@ async def solve_puzzle(json):
         solver = await solve_async()
         
         async def solve_method_async():
-            return await asyncio.to_thread(solver.solve,num_iters=60, iterative_improvement_steps=3)
+            return await asyncio.to_thread(solver.solve,num_iters=60, iterative_improvement_steps=0)
 
         solution = await solve_method_async()