diff --git a/bulls-and-cows-cpp/CGame.cpp b/bulls-and-cows-cpp/CGame.cpp
index 6a0a7e9..9217bdb 100644
--- a/bulls-and-cows-cpp/CGame.cpp
+++ b/bulls-and-cows-cpp/CGame.cpp
@@ -46,7 +46,7 @@ void CGame::Start()
 		do
 		{
 			PrintGameHeader();
-			ShowGuessedNumber(false);
+			ShowGuessedNumber(true);
 			PrintSteps();
 			ret = GetNumber(step);
 			switch (ret)
@@ -169,3 +169,8 @@ int CGame::GetNumber(CStep step)
 
 	return 0;
 }
+
+CGame::~CGame()
+{
+	delete[] m_uGuessedNumber;
+}
diff --git a/bulls-and-cows-cpp/CGame.h b/bulls-and-cows-cpp/CGame.h
index a171d27..9e0f7c1 100644
--- a/bulls-and-cows-cpp/CGame.h
+++ b/bulls-and-cows-cpp/CGame.h
@@ -36,18 +36,18 @@ public:
 	void Init(int);
 
 	void Start();
+
+	~CGame();
 };
 
 template<typename T, typename N>
 bool CGame::IsEqual(const T number, const N digit, int i)
 {
-	i--;
 	bool result = false;
 
-	while (i >= 0)
+	while ((--i) >= 0)
 	{
 		if (digit == number[i]) result = true;
-		i--;
 	}
 	return result;
 }