diff --git a/game/duplicate.cpp b/game/duplicate.cpp
index 24a238a..473c95e 100644
--- a/game/duplicate.cpp
+++ b/game/duplicate.cpp
@@ -64,6 +64,8 @@ Duplicate::Duplicate(const GameParams &iParams, const Game *iMasterGame)
 
 int Duplicate::play(const wstring &iCoord, const wstring &iWord)
 {
+    ASSERT(!isFinished(), "The game is already finished");
+
     Player &currPlayer = *m_players[m_currPlayer];
 
     ASSERT(currPlayer.isHuman(), "Human player expected");
diff --git a/qt/player_widget.cpp b/qt/player_widget.cpp
index 451d38d..2c394bb 100644
--- a/qt/player_widget.cpp
+++ b/qt/player_widget.cpp
@@ -115,7 +115,7 @@ void PlayerWidget::refresh()
     lineEditCoords->clear();
     lineEditChange->clear();
 
-    if (!m_game->isLastTurn())
+    if (!m_game->isLastTurn() || m_game->isFinished())
     {
         // Do not allow entering a move when displaying an old turn
         setEnabled(false);
diff --git a/qt/training_widget.cpp b/qt/training_widget.cpp
index 1edb1e9..7af964a 100644
--- a/qt/training_widget.cpp
+++ b/qt/training_widget.cpp
@@ -165,7 +165,7 @@ void TrainingWidget::refresh()
         pushButtonSearch->setEnabled(m_model->rowCount() == 0 &&
                                      lineEditRack->text() != "");
         // Do not allow entering a move when displaying an old turn
-        setEnabled(m_game->isLastTurn());
+        setEnabled(m_game->isLastTurn() && !m_game->isFinished());
     }
 }