diff --git a/src/libreminesgameengine.cpp b/src/libreminesgameengine.cpp
index 20f480a..029017a 100644
--- a/src/libreminesgameengine.cpp
+++ b/src/libreminesgameengine.cpp
@@ -259,7 +259,7 @@ void LibreMinesGameEngine::vResetPrincipalMatrix()
     principalMatrix.clear();
 }
 
-bool LibreMinesGameEngine::bCleanCell(const uchar _X, const uchar _Y)
+bool LibreMinesGameEngine::bCleanCell(const uchar _X, const uchar _Y, const bool recursive)
 {
     if(principalMatrix[_X][_Y].flagState == FlagState::NoFlag &&
        principalMatrix[_X][_Y].value == CellValue::MINE)
@@ -274,7 +274,7 @@ bool LibreMinesGameEngine::bCleanCell(const uchar _X, const uchar _Y)
     {
         // Unlock the cell
         principalMatrix[_X][_Y].isHidden = false;
-        Q_EMIT SIGNAL_showCell(_X, _Y);
+        Q_EMIT SIGNAL_showCell(_X, _Y, recursive);
 
         // If the state of the cell is CellValue::ZERO, unlock all neighbor cells
         if(principalMatrix[_X][_Y].value == CellValue::ZERO)
@@ -555,7 +555,7 @@ void LibreMinesGameEngine::SLOT_cleanCell(const uchar _X, const uchar _Y)
         SLOT_startTimer();
         bFirst = false;
     }
-    bCleanCell(_X, _Y);
+    bCleanCell(_X, _Y, false);
 }
 
 void LibreMinesGameEngine::SLOT_changeFlagState(const uchar _X, const uchar _Y)
@@ -614,6 +614,8 @@ void LibreMinesGameEngine::SLOT_startTimer()
 
 void LibreMinesGameEngine::SLOT_cleanNeighborCells(const uchar _X, const uchar _Y)
 {
+
+    bool recursive = false;
     // Clean all hided and unflaged neighbor flags
     for(short i=_X-1; i<=_X+1; i++)
     {
@@ -629,8 +631,10 @@ void LibreMinesGameEngine::SLOT_cleanNeighborCells(const uchar _X, const uchar _
 
             if(cell.isHidden && cell.flagState == FlagState::NoFlag)
             {
-                if(!bCleanCell(i, j))
+                if(!bCleanCell(i, j, recursive))
                     return;
+
+                recursive = true;
             }
         }
     }
diff --git a/src/libreminesgameengine.h b/src/libreminesgameengine.h
index 57d61ca..59b4dfa 100644
--- a/src/libreminesgameengine.h
+++ b/src/libreminesgameengine.h
@@ -64,7 +64,15 @@ class LibreMinesGameEngine: public QObject
 
 private:
     void vResetPrincipalMatrix();
-    bool bCleanCell(const uchar _X, const uchar _Y);
+
+    /**
+     * @brief Clear the cell in the #_X, #_Y position.
+     * Create the condition of game lost if the cell is a MINE.
+     * Clear all neighbor cells if the cell is ZERO
+     *
+     * @param recursive - Indicates this cell is being cleared along with another cell.
+     */
+    bool bCleanCell(const uchar _X, const uchar _Y, const bool recursive=true);
     void vGameLost(const uchar _X, const uchar _Y);
     void vGameWon();
 
@@ -92,7 +100,7 @@ class LibreMinesGameEngine: public QObject
     bool bGameActive;
 
 Q_SIGNALS:
-    void SIGNAL_showCell(const uchar _X, const uchar _Y);
+    void SIGNAL_showCell(const uchar _X, const uchar _Y, const bool recursive);
     void SIGNAL_endGameScore(LibreMinesScore score,
                              int iCorrectFlags,
                              int iWrongFlags,
diff --git a/src/libreminesgui.cpp b/src/libreminesgui.cpp
index 7e0f539..fa485c1 100644
--- a/src/libreminesgui.cpp
+++ b/src/libreminesgui.cpp
@@ -1169,7 +1169,7 @@ void LibreMinesGui::SLOT_onCellLabelClicked(const QMouseEvent *const e)
 
 }
 
-void LibreMinesGui::SLOT_showCell(const uchar _X, const uchar _Y)
+void LibreMinesGui::SLOT_showCell(const uchar _X, const uchar _Y, const bool recursive)
 {
     principalMatrix[_X][_Y].button->hide();
 
@@ -1180,7 +1180,10 @@ void LibreMinesGui::SLOT_showCell(const uchar _X, const uchar _Y)
     }
 
 
-    Q_EMIT(sound->SIGNAL_releaseCell());
+    if(!recursive)
+    {
+        Q_EMIT(sound->SIGNAL_releaseCell());
+    }
 }
 
 void LibreMinesGui::SLOT_endGameScore(LibreMinesScore score,
@@ -1963,5 +1966,4 @@ void LibreMinesGui::vUpdatePreferences()
     }
 
     sound->setVolume(preferences->optionSoundVolume());
-    sound->setMuted(preferences->optionSoundVolume() == 0);
 }
diff --git a/src/libreminesgui.h b/src/libreminesgui.h
index 6345491..4c0dd0c 100644
--- a/src/libreminesgui.h
+++ b/src/libreminesgui.h
@@ -181,7 +181,7 @@ private Q_SLOTS:
     void SLOT_onCellLabelReleased(const QMouseEvent*const e);
     void SLOT_onCellLabelClicked(const QMouseEvent*const e);
 
-    void SLOT_showCell(const uchar _X, const uchar _Y);
+    void SLOT_showCell(const uchar _X, const uchar _Y, const bool recursive);
     void SLOT_endGameScore(LibreMinesScore score,
                            int iCorrectFlags,
                            int iWrongFlags,
diff --git a/src/soundeffects.cpp b/src/soundeffects.cpp
index ce84737..91def3c 100644
--- a/src/soundeffects.cpp
+++ b/src/soundeffects.cpp
@@ -4,14 +4,13 @@
 
 SoundEffects::SoundEffects(QObject* parent) :
     QObject( parent ),
-    soundEffects( {&soundGameBegin, &soundGameWon, &soundGameLost, &soundClockTick,
+    soundEffects( {&soundGameBegin, &soundGameWon, &soundGameLost,
                    &soundKeyboardControllMove, &soundReleaseCell, &soundFlagCell} )
 
 {
     soundGameBegin.setSource(QUrl("qrc:/sound_effects/clock_tick.wav"));
     soundGameWon.setSource(QUrl("qrc:/sound_effects/game_won.wav"));
     soundGameLost.setSource(QUrl("qrc:/sound_effects/game_lost.wav"));
-    soundClockTick.setSource(QUrl("qrc:/sound_effects/clock_tick.wav"));
 
     soundKeyboardControllMove.setSource(QUrl("qrc:/sound_effects/move.wav"));
     soundReleaseCell.setSource(QUrl("qrc:/sound_effects/release_cell.wav"));
@@ -23,8 +22,6 @@ SoundEffects::SoundEffects(QObject* parent) :
     connect(this, &SoundEffects::SIGNAL_gameLost,
             &soundGameLost, &QSoundEffect::play);
 
-    connect(this, &SoundEffects::SIGNAL_clockTick,
-            &soundClockTick, &QSoundEffect::play);
 
     connect(this, &SoundEffects::SIGNAL_keyboardControllerMove,
             &soundKeyboardControllMove, &QSoundEffect::play);
@@ -41,13 +38,7 @@ void SoundEffects::setVolume(const int vol)
     for(QSoundEffect* sound : soundEffects)
     {
         sound->setVolume(vol/100.f);
+        sound->setMuted(vol == 0);
     }
 }
 
-void SoundEffects::setMuted(const bool mute)
-{
-    for(QSoundEffect* sound : soundEffects)
-    {
-        sound->setMuted(mute);
-    }
-}
diff --git a/src/soundeffects.h b/src/soundeffects.h
index a5dbc71..8a82c22 100644
--- a/src/soundeffects.h
+++ b/src/soundeffects.h
@@ -12,14 +12,12 @@ class SoundEffects : public QObject
     SoundEffects(QObject* parent = nullptr);
 
     void setVolume(const int vol);
-    void setMuted(const bool mute);
 
 Q_SIGNALS:
 
     void SIGNAL_gameBegin();
     void SIGNAL_gameWon();
     void SIGNAL_gameLost();
-    void SIGNAL_clockTick();
 
     void SIGNAL_keyboardControllerMove();
     void SIGNAL_releaseCell();
@@ -29,7 +27,6 @@ class SoundEffects : public QObject
     QSoundEffect soundGameBegin;
     QSoundEffect soundGameWon;
     QSoundEffect soundGameLost;
-    QSoundEffect soundClockTick;
 
     QSoundEffect soundKeyboardControllMove;
     QSoundEffect soundReleaseCell;