diff --git a/src/game/position.cpp b/src/game/position.cpp
index 75509f7e..97a55dcd 100644
--- a/src/game/position.cpp
+++ b/src/game/position.cpp
@@ -26,6 +26,9 @@
 #include "option.h"
 #include "zobrist.h"
 
+// 当前棋局的字符提示
+string tips;
+
 StateInfo::StateInfo()
 {
     if (position != nullptr) {
@@ -118,7 +121,7 @@ Position &Position::operator= (const Position &pos)
     move = pos.move;
     memcpy(cmdline, pos.cmdline, sizeof(cmdline));
     cmdlist = pos.cmdlist;
-    tips = pos.tips;
+    //tips = pos.tips;
 
     return *this;
 }
@@ -143,7 +146,7 @@ Position &Position::operator= (Position &pos)
     move = pos.move;
     memcpy(cmdline, pos.cmdline, sizeof(cmdline));
     cmdlist = pos.cmdlist;
-    tips = pos.tips;
+    //tips = pos.tips;
 
     return *this;
 }
diff --git a/src/game/position.h b/src/game/position.h
index 82822096..6c9bafb0 100644
--- a/src/game/position.h
+++ b/src/game/position.h
@@ -39,6 +39,8 @@ class AIAlgorithm;
 class StateInfo;
 class Node;
 
+extern string tips;
+
 // 棋局结构体，算法相关，包含当前棋盘数据
 // 单独分离出来供AI判断局面用，生成置换表时使用
 class Position
@@ -340,9 +342,6 @@ private:
 
     // 玩家用时（秒）
     time_t elapsedSeconds[COLOR_COUNT];
-
-    // 当前棋局的字符提示
-    string tips;
 };
 
 // 棋类（在数据模型内，玩家只分先后手，不分黑白）