diff --git a/server/src/top/dreamcenter/go/server/UserThread.java b/server/src/top/dreamcenter/go/server/UserThread.java
index 4ab29cd..1ce2b7c 100644
--- a/server/src/top/dreamcenter/go/server/UserThread.java
+++ b/server/src/top/dreamcenter/go/server/UserThread.java
@@ -61,16 +61,18 @@ public class UserThread extends Thread{
                     NewClick newClick = (NewClick) o;
 
                     if (newClick.color == (cur.get() ? Cross.BLACK : Cross.WHITE) && newClick.color == self){
-                        CalDataUtil.draw(newClick, map);
-                        cur.set(!cur.get());
+                        boolean result = CalDataUtil.draw(newClick, map);
+                        if (result) {
+                            cur.set(!cur.get());
 
-                        users.forEach(u -> {
-                            try {
-                                if (u.isAlive) u.sendMsg(DataUtil.parseData(map, newClick));
-                            } catch (IOException e) {
-                                e.printStackTrace();
-                            }
-                        });
+                            users.forEach(u -> {
+                                try {
+                                    if (u.isAlive) u.sendMsg(DataUtil.parseData(map, newClick));
+                                } catch (IOException e) {
+                                    e.printStackTrace();
+                                }
+                            });
+                        }
                     }
                 } catch (Exception e){
                     System.out.println("::" + e.getMessage());