diff --git a/PdkFriendServer/Logic/SOIsmctsBot.cs b/PdkFriendServer/Logic/SOIsmctsBot.cs
index ba1eb1c4..fa6c4a62 100644
--- a/PdkFriendServer/Logic/SOIsmctsBot.cs
+++ b/PdkFriendServer/Logic/SOIsmctsBot.cs
@@ -190,7 +190,7 @@ namespace PdkFriendServer.Logic
             return FastSim(o1g, o2g, mg, current, myGameNum, CardType1.DanZhang, myPos - 1, 0);
         }
 
-        // 快速模拟核心：全部用 byte[]
+        // 快速模拟核心：全部用 byte[]。支持单张+对子。
         private bool FastSim(List<byte> h1, List<byte> h2, List<byte> my,
             int current, byte maxGameNum, CardType1 maxType, int maxPlayer, int depth)
         {
@@ -202,10 +202,19 @@ namespace PdkFriendServer.Logic
             var cur = current == 0 ? h1 : current == 1 ? h2 : my;
             bool isNewRound = maxPlayer == current || maxGameNum == 0;
 
-            // 贪心：找最大可出牌
             if (isNewRound)
             {
                 if (cur.Count == 0) return false;
+                // 找对子（贪心：出最大的对子）
+                var groups = cur.GroupBy(g => g).Where(g => g.Count() >= 2).OrderByDescending(g => g.Key).ToList();
+                if (groups.Count > 0)
+                {
+                    var pair = groups[0];
+                    var toRemove = pair.Take(2).ToList();
+                    foreach (var g in toRemove) cur.Remove(g);
+                    return FastSim(h1, h2, my, (current + 1) % 3, pair.Key, CardType1.DuiZi, current, depth + 1);
+                }
+                // 单张
                 var sorted = cur.OrderByDescending(g => g).ToList();
                 byte play = sorted[0];
                 cur.Remove(play);
@@ -213,8 +222,20 @@ namespace PdkFriendServer.Logic
             }
             else
             {
-                // 找能压制的最大牌
+                // 跟牌：找能压制的同类型牌
                 var bigger = cur.Where(g => g > maxGameNum).OrderBy(g => g).ToList();
+                if (maxType == CardType1.DuiZi)
+                {
+                    // 对子：找 ≥2 张且大于 maxGameNum
+                    var pairGroups = cur.GroupBy(g => g).Where(g => g.Count() >= 2 && g.Key > maxGameNum).OrderBy(g => g.Key).ToList();
+                    if (pairGroups.Count > 0)
+                    {
+                        var pair = pairGroups[0];
+                        var toRemove = pair.Take(2).ToList();
+                        foreach (var g in toRemove) cur.Remove(g);
+                        return FastSim(h1, h2, my, (current + 1) % 3, pair.Key, CardType1.DuiZi, current, depth + 1);
+                    }
+                }
                 if (bigger.Count > 0)
                 {
                     byte play = bigger[0];
diff --git a/exe/PdkFriendServer/PdkFriendServer.dll b/exe/PdkFriendServer/PdkFriendServer.dll
index 7d2ad18d..8f1718ea 100644
Binary files a/exe/PdkFriendServer/PdkFriendServer.dll and b/exe/PdkFriendServer/PdkFriendServer.dll differ
diff --git a/exe/PdkFriendServer/PdkFriendServer.pdb b/exe/PdkFriendServer/PdkFriendServer.pdb
index f32b7781..e6d85e6c 100644
Binary files a/exe/PdkFriendServer/PdkFriendServer.pdb and b/exe/PdkFriendServer/PdkFriendServer.pdb differ
diff --git a/exe/hjha-console/PdkFriendServer.dll b/exe/hjha-console/PdkFriendServer.dll
index 7d2ad18d..8f1718ea 100644
Binary files a/exe/hjha-console/PdkFriendServer.dll and b/exe/hjha-console/PdkFriendServer.dll differ
diff --git a/exe/hjha-console/PdkFriendServer.pdb b/exe/hjha-console/PdkFriendServer.pdb
index f32b7781..e6d85e6c 100644
Binary files a/exe/hjha-console/PdkFriendServer.pdb and b/exe/hjha-console/PdkFriendServer.pdb differ
diff --git a/exe/hjha-console/hjha-console.dll b/exe/hjha-console/hjha-console.dll
index db94b882..26b40fb5 100644
Binary files a/exe/hjha-console/hjha-console.dll and b/exe/hjha-console/hjha-console.dll differ
diff --git a/exe/hjha-console/hjha-console.pdb b/exe/hjha-console/hjha-console.pdb
index 5b4768fc..e9fafcf9 100644
Binary files a/exe/hjha-console/hjha-console.pdb and b/exe/hjha-console/hjha-console.pdb differ