diff --git a/RuleEngine/MahjongRoom.cs b/RuleEngine/MahjongRoom.cs
index bf42f7c..7638956 100644
--- a/RuleEngine/MahjongRoom.cs
+++ b/RuleEngine/MahjongRoom.cs
@@ -40,7 +40,8 @@ public class MahjongRoom
         _phaseMachine = new MahjongPhaseMachine(phases, _solver, wildcardCount: wc, require258: r258,
             fanConfig: fanConfig,
             jiHuSelfDrawOnly: _rules.WinRule?.JiHuSelfDrawOnly ?? false,
-            wildcards: State.Wildcards);
+            wildcards: State.Wildcards,
+            winMinFan: _rules.WinMinFan);
 
         _scoreEngine = new MahjongScoreEngine(new ScoringConfig
         {
diff --git a/RuleEngine/Phase/PhaseMachine.cs b/RuleEngine/Phase/PhaseMachine.cs
index 38a6083..82f8636 100644
--- a/RuleEngine/Phase/PhaseMachine.cs
+++ b/RuleEngine/Phase/PhaseMachine.cs
@@ -44,13 +44,15 @@ public class MahjongPhaseMachine
     private readonly bool _jiHuSelfDrawOnly;
     private readonly WildcardRegistry _wildcards;
     private readonly bool _chiAllowed;
+    private readonly int _winMinFan;
     public bool ChiAllowed => _chiAllowed;
 
     public MahjongPhaseMachine(List<PhaseConfig> phases, MeldsSolver solver,
         int wildcardCount = 0, bool require258 = false,
         Dictionary<string, FanConfig>? fanConfig = null,
         bool jiHuSelfDrawOnly = false,
-        WildcardRegistry? wildcards = null)
+        WildcardRegistry? wildcards = null,
+        int winMinFan = 0)
     {
         _phases = phases;
         _solver = solver;
@@ -59,6 +61,7 @@ public class MahjongPhaseMachine
         _fanConfig = fanConfig ?? new();
         _jiHuSelfDrawOnly = jiHuSelfDrawOnly;
         _wildcards = wildcards ?? new();
+        _winMinFan = winMinFan;
         _chiAllowed = phases.Any(p =>
             p.OthersReactions.Any(o => o.Action == "chi"));
     }
@@ -94,8 +97,8 @@ public class MahjongPhaseMachine
                 "can_chi" => chiAllowed,
                 "can_win" => canSelfWin,
                 "can_win_tumo" => canSelfWin,
-                "can_win_tumo_and_fan_ge_8" => canSelfWin && fanSum >= 8,
-                "can_win_and_fan_ge_8" => canSelfWin && fanSum >= 8,
+                "can_win_tumo_and_fan_ge_8" => canSelfWin && fanSum >= _winMinFan,
+                "can_win_and_fan_ge_8" => canSelfWin && fanSum >= _winMinFan,
                 _ => true // unknown condition → allow (fail-open for safety)
             };
         }
@@ -136,7 +139,7 @@ public class MahjongPhaseMachine
                     {
                         // Don't add win action; 鸡胡 can only self-draw
                     }
-                    else if (!requireWinFan || result.Fans.Sum(f => GetFanValue(f)) >= 8)
+                    else if (!requireWinFan || result.Fans.Sum(f => GetFanValue(f)) >= _winMinFan)
                         actions.Add(new ActionOption { Action = "win", Priority = 4 });
                 }
             }
@@ -162,7 +165,7 @@ public class MahjongPhaseMachine
                 wildcardCount: wildInSelf, require258Pair: _require258);
             if (tumoResult != null && tumoResult.IsWin)
             {
-                if (!requireWinFan || tumoResult.Fans.Sum(f => GetFanValue(f)) >= 8)
+                if (!requireWinFan || tumoResult.Fans.Sum(f => GetFanValue(f)) >= _winMinFan)
                     actions.Add(new ActionOption { Action = "win", Priority = 4 });
             }
         }