Update app.py

app.py

@@ -42,7 +42,7 @@ def multiplayer_game():
     for i in range(9):
         render_game_state()
         st.write("Player ", player, " turn. Choose a square (1-9).")
-        chosen_square = st.number_input("", min_value=1, max_value=9)
+        chosen_square = st.number_input("", min_value=1, max_value=9, key=f"number_input_{i}")
         row = (chosen_square - 1) // 3
         col = (chosen_square - 1) % 3
         if game_state[row][col] != " ":