Reapply first fix

battlewords/ui.py

@@ -9,6 +9,7 @@ import tempfile
 import os
 import streamlit as st
 from PIL import Image
+import numpy as np
 
 from .generator import generate_puzzle, sort_word_file
 from .logic import build_letter_map, reveal_cell, guess_word, is_game_over, compute_tier
@@ -614,6 +615,7 @@ def _render_grid(state: GameState, letter_map):
         reveal_cell(state, letter_map, clicked)
         st.session_state.letter_map = build_letter_map(st.session_state.puzzle)
         _sync_back(state)
+        st.rerun()
 
 
 def _render_hit_miss(state: GameState):