diff --git a/game_state.h b/game_state.h
index 40b7e7b..fa42c28 100644
--- a/game_state.h
+++ b/game_state.h
@@ -19,6 +19,7 @@ using rank_t = std::uint8_t;
 using suit_t = std::uint8_t;
 using clue_t = std::uint8_t;
 using player_t = std::int8_t;
+using hand_index_t = std::uint8_t;
 
 using state_t = std::uint32_t;
 
@@ -49,10 +50,7 @@ struct Card {
   auto operator<=>(const Card &) const = default;
 };
 
-std::ostream &operator<<(std::ostream &os, const Card &card) {
-  os << suit_initials[card.suit] << 5 - card.rank;
-  return os;
-}
+std::ostream &operator<<(std::ostream &os, const Card &card);
 
 constexpr Card r0 = {0, 0};
 constexpr Card r1 = {0, 1};
@@ -73,9 +71,10 @@ constexpr Card y4 = {1, 4};
  * - Number of clues
  */
 
-template <std::size_t num_suits> using Stacks = std::array<rank_t, num_suits>;
+template <suit_t num_suits>
+using Stacks = std::array<rank_t, num_suits>;
 
-template <std::size_t num_suits>
+template <suit_t num_suits>
 std::ostream &operator<<(std::ostream &os, const Stacks<num_suits> &stacks);
 
 struct CardMultiplicity {
@@ -85,7 +84,7 @@ struct CardMultiplicity {
   auto operator<=>(const CardMultiplicity &) const = default;
 };
 
-template <std::size_t num_suits, typename T> struct CardArray {
+template <suit_t num_suits, typename T> struct CardArray {
     using value_type = T;
 
     CardArray() = default;
@@ -115,9 +114,9 @@ struct BacktrackAction {
   // The card that was discarded or played
   Card discarded{};
   // Index of card in hand that was discarded or played
-  std::uint8_t index{};
+  hand_index_t index{};
   // Multiplicity of new draw (needed for probability calculations)
-  std::uint8_t multiplicity{};
+  hand_index_t multiplicity{};
 };
 
 class HanabiStateIF {
@@ -125,14 +124,14 @@ public:
     virtual double backtrack(size_t depth) = 0;
 
     virtual void clue() = 0;
-    virtual BacktrackAction discard(std::uint8_t index) = 0;
-    virtual BacktrackAction play(std::uint8_t index) = 0;
+    virtual BacktrackAction discard(hand_index_t index) = 0;
+    virtual BacktrackAction play(hand_index_t index) = 0;
 
     virtual void revert_clue() = 0;
     virtual void revert_play(const BacktrackAction &action, bool was_on_8_clues) = 0;
     virtual void revert_discard(const BacktrackAction &action) = 0;
 
-    [[nodiscard]] virtual std::uint8_t find_card_in_hand(const Card& card) const = 0;
+    [[nodiscard]] virtual hand_index_t find_card_in_hand(const Card& card) const = 0;
     [[nodiscard]] virtual bool is_trash(const Card& card) const = 0;
     [[nodiscard]] virtual bool is_playable(const Card& card) const = 0;
 
@@ -148,7 +147,7 @@ protected:
     friend std::ostream& operator<<(std::ostream&, HanabiStateIF const&);
 };
 
-template <std::size_t num_suits, player_t num_players, std::size_t hand_size>
+template <suit_t num_suits, player_t num_players, hand_index_t hand_size>
 class HanabiState : public HanabiStateIF {
 public:
     HanabiState() = default;
@@ -157,14 +156,14 @@ public:
     double backtrack(size_t depth) final;
 
     void clue() final;
-    BacktrackAction play(std::uint8_t index) final;
-    BacktrackAction discard(std::uint8_t index) final;
+    BacktrackAction play(hand_index_t index) final;
+    BacktrackAction discard(hand_index_t index) final;
 
     void revert_clue() final;
     void revert_play(const BacktrackAction &action, bool was_on_8_clues) final;
     void revert_discard(const BacktrackAction &action) final;
 
-    [[nodiscard]] std::uint8_t find_card_in_hand(const Card& card) const final;
+    [[nodiscard]] hand_index_t find_card_in_hand(const Card& card) const final;
     [[nodiscard]] bool is_trash(const Card& card) const final;
     [[nodiscard]] bool is_playable(const Card& card) const final;
 
@@ -178,8 +177,8 @@ protected:
     void print(std::ostream& os) const final;
 
 private:
-    uint8_t draw(uint8_t index);
-    void revert_draw(std::uint8_t index, Card discarded_card);
+    hand_index_t draw(hand_index_t index);
+    void revert_draw(hand_index_t index, Card discarded_card);
 
     void incr_turn();
     void decr_turn();
diff --git a/game_state.hpp b/game_state.hpp
index 936c54a..8375a76 100644
--- a/game_state.hpp
+++ b/game_state.hpp
@@ -22,7 +22,12 @@ namespace Hanabi {
         return ret;
     }
 
-    template<std::size_t num_suits>
+    std::ostream &operator<<(std::ostream &os, const Card &card) {
+        os << suit_initials[card.suit] << 5 - card.rank;
+        return os;
+    }
+
+    template<suit_t num_suits>
     std::ostream &operator<<(std::ostream &os, const Stacks<num_suits> &stacks) {
         for (size_t i = 0; i < stacks.size() - 1; i++) {
             os << starting_card_rank - stacks[i] << ", ";
@@ -31,7 +36,7 @@ namespace Hanabi {
         return os;
     }
 
-    template<std::size_t num_suits, typename T>
+    template<suit_t num_suits, typename T>
     CardArray<num_suits, T>::CardArray(T default_val) {
         for(size_t suit = 0; suit < num_suits; suit++) {
             for (rank_t rank = 0; rank < starting_card_rank; rank++) {
@@ -40,17 +45,17 @@ namespace Hanabi {
         }
     }
 
-    template<std::size_t num_suits, typename T>
+    template<suit_t num_suits, typename T>
     const T& CardArray<num_suits, T>::operator[](const Card &card) const {
         return _array[card.suit][card.rank];
     };
 
-    template<std::size_t num_suits, typename T>
+    template<suit_t num_suits, typename T>
     T& CardArray<num_suits, T>::operator[](const Card &card) {
         return _array[card.suit][card.rank];
     };
 
-    template<size_t num_suits, player_t num_players, size_t hand_size>
+    template<suit_t num_suits, player_t num_players, hand_index_t hand_size>
     HanabiState<num_suits, num_players, hand_size>::HanabiState(const std::vector<Card> &deck):
     _turn(0),
     _num_clues(max_num_clues),
@@ -74,7 +79,7 @@ namespace Hanabi {
         ASSERT(_turn == 0);
     }
 
-    template<size_t num_suits, player_t num_players, size_t hand_size>
+    template<suit_t num_suits, player_t num_players, hand_index_t hand_size>
     void HanabiState<num_suits, num_players, hand_size>::clue() {
         ASSERT(_num_clues > 0);
         --_num_clues;
@@ -82,7 +87,7 @@ namespace Hanabi {
         incr_turn();
     }
 
-    template<size_t num_suits, player_t num_players, size_t hand_size>
+    template<suit_t num_suits, player_t num_players, hand_index_t hand_size>
     void HanabiState<num_suits, num_players, hand_size>::incr_turn() {
         _turn = (_turn + 1) % num_players;
         if(_endgame_turns_left != no_endgame) {
@@ -90,7 +95,7 @@ namespace Hanabi {
         }
     }
 
-    template<size_t num_suits, player_t num_players, size_t hand_size>
+    template<suit_t num_suits, player_t num_players, hand_index_t hand_size>
     void HanabiState<num_suits, num_players, hand_size>::decr_turn() {
         _turn = (_turn + num_players - 1) % num_players;
         if (_endgame_turns_left != no_endgame) {
@@ -98,22 +103,22 @@ namespace Hanabi {
         }
     }
 
-    template<size_t num_suits, player_t num_players, size_t hand_size>
+    template<suit_t num_suits, player_t num_players, hand_index_t hand_size>
     bool HanabiState<num_suits, num_players, hand_size>::is_playable(const Hanabi::Card &card) const {
         return card.rank == _stacks[card.suit] - 1;
     }
 
-    template<size_t num_suits, player_t num_players, size_t hand_size>
+    template<suit_t num_suits, player_t num_players, hand_index_t hand_size>
     std::uint64_t HanabiState<num_suits, num_players, hand_size>::enumerated_states() const {
         return _enumerated_states;
     }
 
-    template<size_t num_suits, player_t num_players, size_t hand_size>
+    template<suit_t num_suits, player_t num_players, hand_index_t hand_size>
     bool HanabiState<num_suits, num_players, hand_size>::is_trash(const Hanabi::Card &card) const {
         return card.rank >= _stacks[card.suit];
     }
 
-    template<std::size_t num_suits, player_t num_players, std::size_t hand_size>
+    template<suit_t num_suits, player_t num_players, hand_index_t hand_size>
     BacktrackAction HanabiState<num_suits, num_players, hand_size>::play(
             std::uint8_t index) {
         ASSERT(index < _hands[_turn].size());
@@ -134,7 +139,7 @@ namespace Hanabi {
         return ret;
     }
 
-    template<std::size_t num_suits, player_t num_players, std::size_t hand_size>
+    template<suit_t num_suits, player_t num_players, hand_index_t hand_size>
     BacktrackAction HanabiState<num_suits, num_players, hand_size>::discard(std::uint8_t index) {
         ASSERT(index < _hands[_turn].size());
         ASSERT(_num_clues != max_num_clues);
@@ -149,7 +154,7 @@ namespace Hanabi {
         return ret;
     }
 
-    template<std::size_t num_suits, player_t num_players, std::size_t hand_size>
+    template<suit_t num_suits, player_t num_players, hand_index_t hand_size>
     std::uint8_t HanabiState<num_suits, num_players, hand_size>::find_card_in_hand(
             const Hanabi::Card &card) const {
        for(std::uint8_t i = 0; i < hand_size; i++) {
@@ -160,9 +165,9 @@ namespace Hanabi {
        return -1;
     }
 
-    template<std::size_t num_suits, player_t num_players, std::size_t hand_size>
+    template<suit_t num_suits, player_t num_players, hand_index_t hand_size>
     void HanabiState<num_suits, num_players, hand_size>::print(std::ostream &os) const {
-        os << "Stacks: " << _stacks << " (score " << +_score << ")";
+//        os << "Stacks: " << _stacks << " (score " << +_score << ")";
         os << ", clues: " << +_num_clues << ", turn: " << +_turn << std::endl;
         os << "Draw pile: ";
         for (const auto &[card, mul]: _draw_pile) {
@@ -182,7 +187,7 @@ namespace Hanabi {
         }
     }
 
-    template<std::size_t num_suits, player_t num_players, std::size_t hand_size>
+    template<suit_t num_suits, player_t num_players, hand_index_t hand_size>
     std::uint8_t HanabiState<num_suits, num_players, hand_size>::draw(uint8_t index) {
         ASSERT(index < _hands[_turn].size());
 
@@ -210,7 +215,7 @@ namespace Hanabi {
         return 0;
     }
 
-    template<std::size_t num_suits, player_t num_players, std::size_t hand_size>
+    template<suit_t num_suits, player_t num_players, hand_index_t hand_size>
     void HanabiState<num_suits, num_players, hand_size>::revert_draw(std::uint8_t index, Card discarded_card) {
         if (_endgame_turns_left == num_players + 1 || _endgame_turns_left == no_endgame) {
             // Put the card that is currently in hand back into the draw pile
@@ -230,7 +235,7 @@ namespace Hanabi {
         _hands[_turn][index] = discarded_card;
     }
 
-    template<std::size_t num_suits, player_t num_players, std::size_t hand_size>
+    template<suit_t num_suits, player_t num_players, hand_index_t hand_size>
     void HanabiState<num_suits, num_players, hand_size>::normalize_draw_and_positions() {
         const Card trash = [this]() -> Card {
             for(suit_t suit = 0; suit < num_suits; suit++) {
@@ -263,7 +268,7 @@ namespace Hanabi {
         _draw_pile.push_back({trash, num_trash_in_draw_pile});
     }
 
-    template<std::size_t num_suits, player_t num_players, std::size_t hand_size>
+    template<suit_t num_suits, player_t num_players, hand_index_t hand_size>
     void HanabiState<num_suits, num_players, hand_size>::revert_play(const BacktrackAction& action, bool was_on_8_clues) {
         ASSERT(!was_on_8_clues or _num_clues == 8);
         decr_turn();
@@ -275,7 +280,7 @@ namespace Hanabi {
         _score--;
     }
 
-    template<std::size_t num_suits, player_t num_players, std::size_t hand_size>
+    template<suit_t num_suits, player_t num_players, hand_index_t hand_size>
     void HanabiState<num_suits, num_players, hand_size>::revert_discard(const BacktrackAction& action) {
         decr_turn();
         ASSERT(_num_clues > 0);
@@ -284,7 +289,7 @@ namespace Hanabi {
         revert_draw(action.index, action.discarded);
     }
 
-    template<std::size_t num_suits, player_t num_players, std::size_t hand_size>
+    template<suit_t num_suits, player_t num_players, hand_index_t hand_size>
     void HanabiState<num_suits, num_players, hand_size>::revert_clue() {
         decr_turn();
         ASSERT(_num_clues < max_num_clues);
@@ -297,7 +302,7 @@ namespace Hanabi {
             return best_probability; \
         }
 
-    template<std::size_t num_suits, player_t num_players, std::size_t hand_size>
+    template<suit_t num_suits, player_t num_players, hand_index_t hand_size>
     double HanabiState<num_suits, num_players, hand_size>::backtrack(size_t depth) {
         _enumerated_states++;
         if (_score == 5 * num_suits) {
diff --git a/main.cpp b/main.cpp
index 5fe8214..b088764 100644
--- a/main.cpp
+++ b/main.cpp
@@ -14,35 +14,39 @@
 
 
 namespace Hanabi {
+    void download(int game_id, int turn) {
+        auto game = Download::get_game(game_id, turn);
+        std::cout << "Analysing state: " << *game << std::endl;
+        auto res = game->backtrack(1);
+        std::cout.precision(10);
+        std::cout << "Probability with optimal play: " << res << std::endl;
+        std::cout << "Enumerated " << game->enumerated_states() << " states" << std::endl;
+    }
 
-void download(int turn) {
-    auto game = Download::get_game("1004116", turn);
-    std::cout << "Analysing state: " << *game << std::endl;
-    auto res = game->backtrack(1);
-    std::cout.precision(10);
-    std::cout << "Probability with optimal play: " << res << std::endl;
-    std::cout << "Enumerated " << game->enumerated_states() << " states" << std::endl;
-}
+    void print_sizes() {
+      std::cout << "size of card -> hand map: " << sizeof(HanabiState<5, 3, 4>)
+                << std::endl;
 
-void print_sizes() {
-  std::cout << "size of card -> hand map: " << sizeof(HanabiState<5, 3, 4>)
-            << std::endl;
+      unsigned exp = 32;
+      std::cout << "Pair size: " << sizeof(std::pair<std::uint32_t, float>)
+                << std::endl;
+      std::cout << sizeof(boost::rational<int>) << std::endl;
+      std::cout << (1ul << exp) << std::endl;
+    }
 
-  unsigned exp = 32;
-  std::cout << "Pair size: " << sizeof(std::pair<std::uint32_t, float>)
-            << std::endl;
-  std::cout << sizeof(boost::rational<int>) << std::endl;
-  std::cout << (1ul << exp) << std::endl;
-}
+    void print_usage(const char* program_name) {
+        std::cout << "Usage: " << program_name << " GAME_ID TURN" << std::endl;
+    }
 
 }
 
 int main(int argc, char *argv[]) {
-//  Hanabi::test_game();
-  if(argc == 2) {
-      std::string turn (argv[1]);
-      Hanabi::download(std::stoi(turn));
+  if(argc == 3) {
+      std::string game (argv[1]);
+      std::string turn (argv[2]);
+      Hanabi::download(std::stoi(game), std::stoi(turn));
+  } else {
+      Hanabi::print_usage(argv[0]);
   }
-
   return 0;
 }
\ No newline at end of file