diff --git a/NineChess/src/config.h b/NineChess/src/config.h
index 875543f3..622745cb 100644
--- a/NineChess/src/config.h
+++ b/NineChess/src/config.h
@@ -1,15 +1,15 @@
 #ifndef CONFIG_H
 #define CONFIG_H
 
-//#define DEBUG
+#define DEBUG
 
-#define RANDOM_MOVE
+//#define RANDOM_MOVE
 
-#define DEAL_WITH_HORIZON_EFFECT
+//#define DEAL_WITH_HORIZON_EFFECT
 
 //#define RANDOM_BEST_MOVE
 
-//#define HASH_MAP_ENABLE
+#define HASH_MAP_ENABLE
 
 //#define DONOT_DELETE_TREE
 
@@ -48,7 +48,7 @@
 #define DRAW_SEAT_NUMBER
 #endif
 
-#define IDS_SUPPORT
+//#define IDS_SUPPORT
 
 #define SAVE_CHESSBOOK_WHEN_ACTION_NEW_TRIGGERED
 
diff --git a/NineChess/src/hashmap.cpp b/NineChess/src/hashmap.cpp
index e4e484c0..44270d35 100644
--- a/NineChess/src/hashmap.cpp
+++ b/NineChess/src/hashmap.cpp
@@ -1,48 +1,37 @@
 #include "hashmap.h"
 
-template <typename T>
-HashMap<T>::HashMap():
-    capacity(0),
-    size(0),
-    pool(nullptr)
-{
-    this->capacity = 0x20000000; // TODO
-}
 
-template <typename T>
-HashMap<T>::HashMap(size_t capacity)
-{
-    this->capacity = capacity;
-    this->size = 0;
-    construct();
-}
+// template <typename T>
+// HashMap<T>(uint64_t capacity, uint64_t size, T *pool)
+// {
+//     this->capacity = capacity;
+//     size = size;
+//     //HashMap<T>::construct();
+// }
 
-template <typename T>
-HashMap<T>::~HashMap()
-{
-    clear();
-}
 
 template <typename T>
 bool HashMap<T>::construct()
 {
-    pool = new T[capacity];
+    HashMap<T>::pool = new T[capacity];
 
-    if (pool ==  nullptr) {
+    if (HashMap<T>::pool ==  nullptr) {
         return false;
     }
 
     return true;
 }
 
+
+
 template <typename T>
 T& HashMap<T>::at(uint64_t i)
 {
     if (i >= capacity) {
         qDebug() << "Error";
-        return pool[0];
+        return HashMap<T>::pool[0];
     }
-    return pool[i];
+    return HashMap<T>::pool[i];
 }
 
 template <typename T>
@@ -52,7 +41,7 @@ size_t HashMap<T>::getSize()
 }
 
 template <typename T>
-size_t HashMap<T>::getCapacity()
+uint64_t HashMap<T>::getCapacity()
 {
     return capacity;
 }
@@ -64,7 +53,7 @@ uint64_t HashMap<T>::hashToAddr(uint64_t hash)
 }
 
 template <typename T>
-void HashMap<T>::insert(uint64_t hash, const T &hashValue)
+void HashMap<T>::insert(uint64_t hash, T &hashValue)
 {
     uint64_t addr = hashToAddr(hash);
 
@@ -78,3 +67,6 @@ void HashMap<T>::clear()
     pool = nullptr;
 }
 
+template <typename T>
+HashMap<T>* HashMap<T>::instance = new HashMap<T>(capacity = 1024, size =  0);
+
diff --git a/NineChess/src/hashmap.h b/NineChess/src/hashmap.h
index e511352f..1550f30d 100644
--- a/NineChess/src/hashmap.h
+++ b/NineChess/src/hashmap.h
@@ -2,55 +2,87 @@
 #define HASHMAP_H
 
 #include <limits>
+#include <memory>
+#include <mutex>
 #include <qDebug>
 
 template <typename T>
 class HashMap
 {
 public:
-    HashMap();
-    HashMap(size_t capacity);
-    ~HashMap();
+    //HashMap(size_t capacity, size_t size, T* pool);
+    //~HashMap();
+    HashMap() = default;
 
-    enum FindResult
+    static HashMap *getInstance()
     {
-        HASHMAP_NOTFOUND = INT32_MAX,
-    };
+#if 0
+        static std::once_flag s_flag;
+        std::call_once(s_flag, [&]() {
+            instance.reset(new HashMap);
+        });
+#endif
+        if (instance)
 
-    T& at(uint64_t i);
+        return *instance;
+    }
 
+    static void lock()
+    {
+        hashMapMutex.lock();
+    }
+
+    static void unlock()
+    {
+        hashMapMutex.unlock();
+    }
+
+    static T& at(uint64_t i);
+
+#if 0
     T& operator[](uint64_t hash)
     {
         uint64_t addr = hashToAddr(hash);
         
         return pool[addr];
     }
+#endif
 
-    uint64_t hashToAddr(uint64_t hash);
+    static uint64_t hashToAddr(uint64_t hash);
 
-    T &find(uint64_t hash)
+    static char* find(uint64_t hash)
     {
-        uint64_t addr = hashToAddr(hash);
+       // uint64_t addr = hashToAddr(hash);
 
-        return pool[addr];
+        return pool[hash <<32 >>32];
     }
 
-    size_t getSize();
-    size_t getCapacity();
+    static size_t getSize();
+    static size_t getCapacity();
 
-    void clear();
+    static void clear();
 
-    void insert(uint64_t hash, const T &hashValue);
+    static void insert(uint64_t hash, T &hashValue);
 
-    bool construct();
+    static bool construct();
 
-private:
-    size_t capacity;
-    size_t size;
+public:
+    static const  uint64_t capacity;
+    static uint64_t size;
 
-    T *pool;   
+    static char *pool;
 
+    static std::mutex hashMapMutex;
+    
+    //static std::auto_ptr<HashMap<T>> instance;
+    static HashMap<T>* instance;
+public:
+    // 防止外部构造。
+    //HashMap() = default;
+    // 防止拷贝和赋值。
+    HashMap &operator=(const HashMap &) = delete; HashMap(const HashMap &another) = delete;
 };
 
 
+
 #endif // HASHMAP_H
diff --git a/NineChess/src/ninechessai_ab.cpp b/NineChess/src/ninechessai_ab.cpp
index 0886c13b..9fb1a12a 100644
--- a/NineChess/src/ninechessai_ab.cpp
+++ b/NineChess/src/ninechessai_ab.cpp
@@ -13,18 +13,26 @@
 #include <algorithm>
 
 #include "ninechessai_ab.h"
+#include "hashmap.h"
+
+#ifdef HASH_MAP_ENABLE
+static std::unique_ptr<HashMap<NineChessAi_ab::HashValue>> instance;
+#endif
 
 NineChessAi_ab::NineChessAi_ab() :
     rootNode(nullptr),
     requiredQuit(false),
     nodeCount(0),
-    evaluatedNodeCount(0),
-    hashHitCount(0)
+#ifdef HASH_MAP_ENABLE
+    hashHitCount(0),
+    //hashmap(HashMap<HashValue>::getInstance()),
+#endif
+    evaluatedNodeCount(0)
 {
     buildRoot();
 
 #ifdef HASH_MAP_ENABLE
-    hashMap.construct(); // TODO
+    //hashmap = HashMap<HashValue>::getInstance();
 #endif
 }
 
@@ -99,7 +107,7 @@ struct NineChessAi_ab::Node *NineChessAi_ab::addNode(Node *parent, int value, in
 // 闈欐�乭ashmap鍒濆鍖�
 //mutex NineChessAi_ab::hashMapMutex;
 //HashMap<NineChessAi_ab::HashValue> NineChessAi_ab::hashmap;
-
+//std::unique_ptr<HashMap<NineChessAi_ab::HashValue>> HashMap::instance;
 
 
 #ifdef MOVE_PRIORITY_TABLE_SUPPORT
@@ -636,9 +644,9 @@ int NineChessAi_ab::alphaBetaPruning(int depth, int alpha, int beta, Node *node)
     uint64_t hash = chessTemp.getHash();
     node->hash = hash;
 
-    hashMapMutex.lock();
+    //hashMapMutex.lock();
 
-    HashValue hashValue = findHash(hash);
+    HashValue hashValue;// = NineChessAi_ab::findHash(hash_);
 
     if (node != rootNode &&
         hashValue.hash == hash &&
@@ -655,13 +663,13 @@ int NineChessAi_ab::alphaBetaPruning(int depth, int alpha, int beta, Node *node)
         else
             node->value -= hashValue.depth - depth;
 
-        hashMapMutex.unlock();
+        //hashMapMutex::unlock();
         hashHitCount++;
 
         return node->value;
     }
 
-    hashMapMutex.unlock();
+    //hashMapMutex.unlock();
 #endif /* HASH_MAP_ENABLE */
 
     // 鎼滅储鍒板彾瀛愯妭鐐癸紙鍐宠儨灞�闈級
@@ -831,12 +839,12 @@ int NineChessAi_ab::alphaBetaPruning(int depth, int alpha, int beta, Node *node)
     }
     // 鏇存柊鏇存繁灞傛暟鎹�
     else {
-        hashMapMutex.lock();
+        //hashMapMutex.lock();
         if (hashValue.depth < depth) {
             hashValue.value = node->value;
             hashValue.depth = depth;
         }
-        hashMapMutex.unlock();
+        //hashMapMutex.unlock();
     }
 #endif
 
@@ -848,12 +856,13 @@ int NineChessAi_ab::alphaBetaPruning(int depth, int alpha, int beta, Node *node)
 }
 
 #ifdef HASH_MAP_ENABLE
-int NineChessAi_ab::recordHash(const HashValue &hashValue)
+int NineChessAi_ab::recordHash(HashValue &hashValue)
 {
 #ifdef HASH_MAP_ENABLE
-    hashMapMutex.lock();
-    hashMap.insert(hashValue.hash, hashValue);
-    hashMapMutex.unlock();
+    //hashMapMutex.lock();
+    //HashMap<HashValue>::insert(hashValue.hash, hashValue);
+   
+    //hashMapMutex.unlock();
 #endif // HASH_MAP_ENABLE
 
     return 0;
@@ -956,9 +965,10 @@ const char *NineChessAi_ab::move2string(int move)
 }
 
 #ifdef HASH_MAP_ENABLE
+#if  0
 NineChessAi_ab::HashValue NineChessAi_ab::findHash(uint64_t hash)
 {
-    NineChessAi_ab::HashValue hashValue = hashMap.find(hash);
+   // NineChessAi_ab::HashValue hashValue = hashmap.find(hash);
 
     // TODO: 鍙樻崲灞�闈�
 #if 0
@@ -984,13 +994,14 @@ NineChessAi_ab::HashValue NineChessAi_ab::findHash(uint64_t hash)
     }
 #endif
 
-    return hashValue;
+    return 0;
 }
+#endif 
 
 void NineChessAi_ab::clearHashMap()
 {
-    hashMapMutex.lock();
-    hashMap.clear();
-    hashMapMutex.unlock();
+    //hashMapMutex.lock();
+    //hashMap.clear();
+    //hashMapMutex.unlock();
 }
-#endif /* HASH_MAP_ENABLE */
\ No newline at end of file
+#endif /* HASH_MAP_ENABLE */
diff --git a/NineChess/src/ninechessai_ab.h b/NineChess/src/ninechessai_ab.h
index 5dd6a7c5..7f61d22d 100644
--- a/NineChess/src/ninechessai_ab.h
+++ b/NineChess/src/ninechessai_ab.h
@@ -29,7 +29,7 @@ class NineChessAi_ab
 public:
 #ifdef HASH_MAP_ENABLE
     // 瀹氫箟鍝堝笇鍊肩殑绫诲瀷
-    enum HashType : int16_t
+    enum HashType
     {
         hashfEMPTY = 0,
         hashfALPHA = 1,
@@ -129,11 +129,6 @@ public:
     static bool nodeLess(const Node *first, const Node *second);
     static bool nodeGreater(const Node *first, const Node *second);
 
-#ifdef HASH_MAP_ENABLE
-    static std::mutex hashMapMutex;
-    static HashMap<HashValue> hashMap;
-#endif
-
 protected:
     // 鐢熸垚鎵�鏈夊悎娉曠殑鐫�娉曞苟寤虹珛瀛愯妭鐐�
     void generateLegalMoves(Node *node);
@@ -152,7 +147,7 @@ protected:
 
 #ifdef HASH_MAP_ENABLE
     // 鎻掑叆鍝堝笇琛�
-    int recordHash(const HashValue &hashValue);
+    int recordHash(HashValue &hashValue);
 #endif
 
     // 璇勪环鍑芥暟
@@ -213,9 +208,6 @@ private:
     array<int, NineChess::N_RINGS *NineChess::N_SEATS> movePriorityTable;
 #endif // MOVE_PRIORITY_TABLE_SUPPORT
 
-    // 鍝堝笇琛ㄧ殑榛樿澶у皬
-    static const size_t maxHashCount = 1024 * 1024;
-
     // 瀹氫箟鏋佸ぇ鍊�
     static const int INF_VALUE = 0x1 << 30;
 
@@ -225,6 +217,10 @@ private:
 private:
     // 鍛戒护琛�
     char cmdline[32];
+
+#ifdef HASH_MAP_ENABLE
+    HashMap<struct HashValue> hashmap;
+#endif
 };
 
 #endif