🔍 Assign bestScore to MinEval instead of to `NegativeCheckmateDet…

…ectionLimitt` (#1041)

src/Lynx/Search/NegaMax.cs

@@ -178,7 +178,7 @@ private int NegaMax(int depth, int ply, int alpha, int beta, bool parentWasNullM
         }
 
         var nodeType = NodeType.Alpha;
-        int bestScore = EvaluationConstants.NegativeCheckmateDetectionLimit;
+        int bestScore = EvaluationConstants.MinEval;
         Move? bestMove = null;
         bool isAnyMoveValid = false;