diff --git a/game/public_game.cpp b/game/public_game.cpp
index e2e985e..520cc1b 100644
--- a/game/public_game.cpp
+++ b/game/public_game.cpp
@@ -159,6 +159,12 @@ int PublicGame::play(const wstring &iWord, const wstring &iCoord)
 }
 
 
+int PublicGame::checkPlayedWord(const wstring &iWord, const wstring &iCoord, Move &oMove) const
+{
+    return m_game.checkPlayedWord(iCoord, iWord, oMove, true);
+}
+
+
 int PublicGame::computePoints(const wstring &iWord, const wstring &iCoord) const
 {
     Move move;
diff --git a/game/public_game.h b/game/public_game.h
index bad29b4..491baac 100644
--- a/game/public_game.h
+++ b/game/public_game.h
@@ -158,6 +158,10 @@ public:
      */
     int play(const wstring &iWord, const wstring &iCoord);
 
+    // TODO: doc
+    int checkPlayedWord(const wstring &iWord, const wstring &iCoord,
+                        Move &oMove) const;
+
     /**
      * Compute the points for playing the word iWord at coordinates iCoord.
      * A negative return value indicates an error (same codes as for the
diff --git a/qt/main_window.cpp b/qt/main_window.cpp
index c320784..468711d 100644
--- a/qt/main_window.cpp
+++ b/qt/main_window.cpp
@@ -161,8 +161,9 @@ MainWindow::MainWindow(QWidget *iParent)
 
     // Rack widget below the board
     RackWidget *rackWidget = new RackWidget;
-    QObject::connect(&m_playModel, SIGNAL(moveChanged(const wstring&, const Coord&)),
-                     rackWidget, SLOT(refresh()));
+    // TODO
+//     QObject::connect(&m_playModel, SIGNAL(moveChanged(const wstring&, const Coord&)),
+//                      rackWidget, SLOT(refresh()));
     rackWidget->setFrameStyle(QFrame::WinPanel | QFrame::Raised);
     QObject::connect(this, SIGNAL(gameChanged(const PublicGame*)),
                      rackWidget, SLOT(setGame(const PublicGame*)));
diff --git a/qt/play_model.cpp b/qt/play_model.cpp
index 8c2d4bc..143cde4 100644
--- a/qt/play_model.cpp
+++ b/qt/play_model.cpp
@@ -20,23 +20,22 @@
 
 #include "play_model.h"
 
+#include "encoding.h"
+#include "debug.h"
+
 
 INIT_LOGGER(qt, PlayModel);
 
 
 PlayModel::PlayModel()
 {
-    QObject::connect(this, SIGNAL(coordChanged(const Coord&, const Coord&)),
-                     this, SLOT(onMoveChanged()));
-    QObject::connect(this, SIGNAL(wordChanged(const wstring&, const wstring&)),
-                     this, SLOT(onMoveChanged()));
 }
 
 
 void PlayModel::clear()
 {
     setCoord(Coord());
-    setWord(L"");
+    setMove(Move());
 }
 
 
@@ -52,20 +51,20 @@ void PlayModel::setCoord(const Coord &iCoord)
 }
 
 
-void PlayModel::setWord(const wstring &iWord)
+void PlayModel::setMove(const Move &iMove)
 {
+    ASSERT(iMove.isValid() || iMove.isInvalid() || iMove.isNull(),
+           "Unexpected move type");
+
+    LOG_DEBUG("Setting PlayModel move to " << lfw(iMove.toString()));
+
     // Avoid useless work
-    if (iWord == m_currWord)
-        return;
+    // TODO
+    //if (iMove == m_currMove)
+    //    return;
 
-    m_prevWord = m_currWord;
-    m_currWord = iWord;
-    emit wordChanged(iWord, m_prevWord);
-}
-
-
-void PlayModel::onMoveChanged()
-{
-    emit moveChanged(m_currWord, m_currCoord);
+    m_prevMove = m_currMove;
+    m_currMove = iMove;
+    emit moveChanged(iMove, m_prevMove);
 }
 
diff --git a/qt/play_model.h b/qt/play_model.h
index e0de5ca..66db919 100644
--- a/qt/play_model.h
+++ b/qt/play_model.h
@@ -25,6 +25,7 @@
 #include <QObject>
 
 #include "coord.h"
+#include "move.h"
 #include "logging.h"
 
 using std::wstring;
@@ -58,24 +59,19 @@ public:
     void setCoord(const Coord &iCoord);
     const Coord & getCoord() const { return m_currCoord; }
 
-    void setWord(const wstring &iWord);
-    const wstring & getWord() const { return m_currWord; }
+    void setMove(const Move &iMove);
+    const Move &getMove() const { return m_currMove; }
 
 signals:
     void coordChanged(const Coord &iNewCoord, const Coord &iOldCoord);
-    void wordChanged(const wstring &iNewWord, const wstring &iOldWord);
-    /// Emitted whenever coordChanged() or wordChanged() is emitted
-    void moveChanged(const wstring &iWord, const Coord &iCoord);
-
-private slots:
-    void onMoveChanged();
+    void moveChanged(const Move &iMove, const Move &iOldMove);
 
 private:
     Coord m_currCoord;
     Coord m_prevCoord;
 
-    wstring m_currWord;
-    wstring m_prevWord;
+    Move m_currMove;
+    Move m_prevMove;
 };
 
 #endif
diff --git a/qt/play_word_mediator.cpp b/qt/play_word_mediator.cpp
index 3467dcc..5a12d58 100644
--- a/qt/play_word_mediator.cpp
+++ b/qt/play_word_mediator.cpp
@@ -54,7 +54,7 @@ PlayWordMediator::PlayWordMediator(QObject *parent, QLineEdit &iEditPlay,
 
     // Set all the connections
     QObject::connect(&m_lineEditPlay, SIGNAL(textChanged(const QString&)),
-                     this, SLOT(updatePointsAndState()));
+                     this, SLOT(onWordChanged(const QString&)));
     QObject::connect(&m_lineEditPlay, SIGNAL(returnPressed()),
                      this, SLOT(playWord()));
     QObject::connect(&m_lineEditCoord, SIGNAL(textChanged(const QString&)),
@@ -106,7 +106,8 @@ bool PlayWordMediator::GetPlayedWord(QLineEdit &iEditWord,
         {
             // Cannot parse the string...
             *oPlayedWord = wfq(word);
-            *oProblemCause = _q("Cannot play word: misplaced parentheses");
+            if (oProblemCause)
+                *oProblemCause = _q("Cannot play word: misplaced parentheses");
             return false;
         }
 
@@ -219,6 +220,18 @@ void PlayWordMediator::onCoordChanged(const QString &iText)
 }
 
 
+void PlayWordMediator::onWordChanged(const QString &iText)
+{
+    wstring playedWord;
+    GetPlayedWord(m_lineEditPlay, m_game->getDic(), &playedWord, NULL);
+
+    Move move;
+    m_game->checkPlayedWord(playedWord, wfq(m_lineEditCoord.text()), move);
+    m_playModel.setMove(move);
+    updatePointsAndState();
+}
+
+
 void PlayWordMediator::updateCoord(const Coord &iNewCoord)
 {
     // Ignore updates to non-visible controls (which happens when there
diff --git a/qt/play_word_mediator.h b/qt/play_word_mediator.h
index facb90f..34cd0bf 100644
--- a/qt/play_word_mediator.h
+++ b/qt/play_word_mediator.h
@@ -91,6 +91,7 @@ private slots:
     void playWord();
     void updatePointsAndState();
     void onCoordChanged(const QString &iText);
+    void onWordChanged(const QString &iText);
     void updateCoord(const Coord &iNewCoord);
 
 private: