diff --git a/game/duplicate.cpp b/game/duplicate.cpp
index 3f44289..24a238a 100644
--- a/game/duplicate.cpp
+++ b/game/duplicate.cpp
@@ -38,7 +38,6 @@
 #include "move.h"
 #include "pldrack.h"
 #include "results.h"
-#include "move_selector.h"
 #include "player.h"
 #include "cmd/player_move_cmd.h"
 #include "cmd/player_rack_cmd.h"
@@ -276,7 +275,7 @@ void Duplicate::endTurn()
         {
             // If nobody played a valid round, we are forced to play a valid move.
             // So let's take the best one...
-            BestResults results;
+            MasterResults results(getBag());
             // Take the first player's rack
             const Rack &rack =
                 m_players[REF_PLAYER_ID]->getLastRack().getRack();
@@ -288,9 +287,7 @@ void Duplicate::endTurn()
                 throw EndGameException(_("No possible move"));
             }
 
-            // Select a clever master move if possible
-            MoveSelector selector;
-            setMasterMove(Move(selector.selectMaster(results)));
+            setMasterMove(Move(results.get(0)));
         }
     }
 
diff --git a/game/game.cpp b/game/game.cpp
index 28142f0..7864e62 100644
--- a/game/game.cpp
+++ b/game/game.cpp
@@ -37,7 +37,6 @@
 #include "round.h"
 #include "pldrack.h"
 #include "results.h"
-#include "move_selector.h"
 #include "player.h"
 #include "game.h"
 #include "turn_data.h"
@@ -452,15 +451,14 @@ PlayedRack Game::helperSetRackRandom(const PlayedRack &iPld,
     {
         const Rack &rack = pld.getRack();
 
-        BestResults res;
+        MasterResults res(getBag());
         res.search(getDic(), getBoard(), rack,  getHistory().beforeFirstRound());
         if (!res.isEmpty())
         {
             PlayedRack pldCopy = pld;
 
             // Get the best word
-            MoveSelector selector;
-            const Round & bestRound = selector.selectMaster(res);
+            const Round & bestRound = res.get(0);
             LOG_DEBUG("helperSetRackRandom(): initial rack: "
                       << lfw(pld.toString()) << " (best word: "
                       << lfw(bestRound.getWord()) << ")");
diff --git a/game/results.cpp b/game/results.cpp
index a468138..4d0fb21 100644
--- a/game/results.cpp
+++ b/game/results.cpp
@@ -25,10 +25,11 @@
 #include <cwctype>
 #include <cmath>
 
+#include "results.h"
 #include "tile.h"
 #include "round.h"
 #include "board.h"
-#include "results.h"
+#include "move_selector.h"
 #include "debug.h"
 
 
@@ -306,3 +307,41 @@ void LimitResults::clear()
     m_total = 0;
 }
 
+
+
+MasterResults::MasterResults(const Bag &iBag)
+    : m_bag(iBag)
+{
+}
+
+
+void MasterResults::search(const Dictionary &iDic, const Board &iBoard,
+                           const Rack &iRack, bool iFirstWord)
+{
+    // Perform the search of the best results
+    m_bestResults.search(iDic, iBoard, iRack, iFirstWord);
+
+    // If the search yields no result, there is nothing else to do
+    if (m_bestResults.isEmpty())
+        return;
+
+    // Find the best round, according to the heuristics in MoveSelector
+    MoveSelector selector;
+    const Round &round = selector.selectMaster(m_bestResults);
+    m_rounds.push_back(round);
+}
+
+
+void MasterResults::add(const Round &iRound)
+{
+    m_bestResults.add(iRound);
+}
+
+
+void MasterResults::clear()
+{
+    m_rounds.clear();
+    m_bestResults.clear();
+}
+
+
diff --git a/game/results.h b/game/results.h
index e763953..877044f 100644
--- a/game/results.h
+++ b/game/results.h
@@ -32,6 +32,7 @@ using namespace std;
 class Dictionary;
 class Board;
 class Rack;
+class Bag;
 
 
 /**
@@ -138,5 +139,27 @@ private:
     int m_minScore;
 };
 
+/**
+ * This implementation starts with finding the rounds corresponding to the best
+ * score, like BestResults would do.
+ * After that, it uses a series of heuristics to identify the round which
+ * be best as "master move" in a duplicate game.
+ * All other rounds are discarded, so the size() method will always
+ * return 0 (if no round can be played at all) or 1.
+ */
+class MasterResults: public Results
+{
+public:
+    MasterResults(const Bag &iBag);
+    virtual void search(const Dictionary &iDic, const Board &iBoard,
+                        const Rack &iRack, bool iFirstWord);
+    virtual void clear();
+    virtual void add(const Round &iRound);
+
+private:
+    const Bag &m_bag;
+    BestResults m_bestResults;
+};
+
 #endif
 
diff --git a/game/topping.cpp b/game/topping.cpp
index 8d444d4..6d6a5aa 100644
--- a/game/topping.cpp
+++ b/game/topping.cpp
@@ -34,7 +34,6 @@
 #include "settings.h"
 #include "rack.h"
 #include "results.h"
-#include "move_selector.h"
 #include "pldrack.h"
 #include "player.h"
 #include "turn.h"
@@ -221,14 +220,13 @@ void Topping::addPlayer(Player *iPlayer)
 
 Move Topping::getTopMove() const
 {
-    BestResults results;
+    // Find the most interesting top
+    MasterResults results(getBag());
     results.search(getDic(), getBoard(), getHistory().getCurrentRack().getRack(),
                    getHistory().beforeFirstRound());
     ASSERT(!results.isEmpty(), "No top move found");
 
-    // Find the most interesting top
-    MoveSelector selector;
-    return Move(selector.selectMaster(results));
+    return Move(results.get(0));
 }
 
 
diff --git a/qt/arbit_assignments.cpp b/qt/arbit_assignments.cpp
index d1e60e4..7e4987f 100644
--- a/qt/arbit_assignments.cpp
+++ b/qt/arbit_assignments.cpp
@@ -31,7 +31,6 @@
 #include "prefs_dialog.h"
 
 #include "public_game.h"
-#include "move_selector.h"
 #include "player.h"
 #include "turn_data.h"
 #include "rack.h"
@@ -526,7 +525,7 @@ void ArbitAssignments::setDefaultMasterMove()
         return;
 
     // Search the best moves
-    BestResults results;
+    MasterResults results(m_game->getBag());
     results.search(m_game->getDic(), m_game->getBoard(),
                    m_game->getCurrentRack().getRack(),
                    m_game->getHistory().beforeFirstRound());
@@ -535,8 +534,7 @@ void ArbitAssignments::setDefaultMasterMove()
         return;
 
     // Find a good default
-    MoveSelector selector;
-    Move move = Move(selector.selectMaster(results));
+    Move move = Move(results.get(0));
 
     // Assign the master move
     m_game->duplicateSetMasterMove(move);