fix: handling bdrs from ones

src/stats.py

@@ -53,6 +53,15 @@ def analyze_replay(instance: hanab_game.HanabiInstance, actions: List[hanab_game
                         outcomes.add(GameOutcome.bottom_deck)
             else:
                 if game.deck[game.progress:].count(card) == 1:
+                    # Only one copy of this 1 remaining in the draw pile.
+                    # See if it is in somebody's hand
+                    num_copies_in_hands = 0
+                    for hand in game.hands:
+                        num_copies_in_hands += hand.count(card)
+                    # Recall we evaluate the discard *before* the card is removed from the hand,
+                    # so there is at least one present.
+                    assert num_copies_in_hands > 0
+                    if num_copies_in_hands == 1:
                         bdrs.append((card, game.draw_pile_size))
                         if card == game.deck[-1]:
                             outcomes.add(GameOutcome.bottom_deck)